Hiring a fractional CFO as a Controller is a massive power move—it can elevate your strategic footprint, offload heavy forecasting burdens, and position you as the operational right-hand to the executive team.

Since you are already the Controller, you hold a unique vantage point: you know the messy data, the operational bottlenecks, and where the financial blind spots lie. Here is a step-by-step roadmap to finding, vetting, and onboarding the right fractional CFO.

Step 1: Define the "Why" and the Scope

Before looking at candidates, pinpoint the exact gaps a fractional CFO needs to fill. Since you manage the historical reporting and compliance, what is missing?

• Strategic Growth: Do they need to build 3--5 year predictive financial models, or prep the board deck?
• Capital & Fundraising: Are you raising a Series A/B/C, or looking at debt financing?
• Specialized Expertise: Do you need international expansion, M&A experience, or SaaS metric mastery (churn, LTV/CAC optimization)?
• Time Commitment: Is this 5--10 hours a week, or a heavy 20 hours during budgeting season?

Step 2: Establish the Partnership Dynamics

Clarify the reporting lines and working relationship early.

• The Dynamic: They should act as the strategist/visionary, while you remain the operational gatekeeper of the numbers. They pitch the story to the board; you provide the rock-solid foundation of the data.
• Avoid Turf Wars: Make sure leadership explicitly communicates that you are driving the selection or are a core part of the decision committee. A good fractional CFO will want an empowered Controller to lean on.

Step 3: Sourcing Candidates

Don't just post on a generic job board. High-end fractional talent is relational and network-driven.

• Fractional Platforms & Agencies: Look into specialized firms that vet fractional executives (e.g., CFO Selections or FocusCFO).
• Peer Networks: Ask your VC/PE backers, corporate lawyers, or audit partners—they constantly see fractional CFOs who play well with high-growth companies.
• LinkedIn & Fractional Communities: Search for fractional CFO networks or filter for independent fractional consultants who specialize in your specific industry (e.g., B2B SaaS, D2C, biotech).

Step 4: Vetting (The Controller’s Technical Screen)

You are uniquely positioned to test their technical chops. In interviews, dig into:

• The "Messy Data" Test: Ask them how they handle an environment where the data isn't clean or the ERP isn't fully integrated. (If they say "I just wave my wand and the data appears," run. They need to respect the groundwork you do).
• Strategic Storytelling: Ask for an example of how they translated a complex variance analysis into a simple, actionable story for a non-financial CEO or board.
• Cultural & Ego Check: Ego is the enemy in a fractional setup. You need someone collaborative who treats you as a peer and partner, not an assistant.
• Capacity & Responsiveness: Ask how many other clients they currently advise. If they are over-committed, they won't be available when an urgent strategic decision pops up mid-week.

Step 5: Structuring the Engagement

• Pilot Phase: Propose a 30-to-60-day pilot (e.g., auditing your current forecasting model or helping with an upcoming board meeting) to test the working cadence.
• Clear Deliverables: Define success metrics (e.g., "deliverable monthly KPI dashboard by the 10th," "revamped cash-flow forecasting model by day 45").
• Contract Flexibility: Ensure the contract has a clear scaling mechanism or exit clause if the company's needs shift rapidly up or down.

If you'd like, let me know:

• What industry and growth stage your company is in (e.g., early-stage SaaS, scaling eCommerce)
• What your biggest immediate pain point is right now (fundraising, cash burn, budgeting)

I can help you draft a specific interview scorecard or questionnaire tailored to your situation.

Yes. If you’re a Controller at a fast-growing company, I’d hire a fractional CFO primarily as your strategic thought partner—not as another person to run accounting.

The best person should help you move from “How do we report what happened?” toward “What should management do next?” That distinction is important because the modern CFO role increasingly centers on business value, transformation, and strategic decision-making rather than financial stewardship alone.

1. Start by defining what you actually want from them

Before searching, write down 3–5 problems you want the fractional CFO to help you solve.

For example:

• FP&A: Build a better forecasting process and driver-based model.
• Cash: Improve cash forecasting, working-capital management, and liquidity planning.
• Growth: Help management understand unit economics, margins, pricing, customer profitability, etc.
• Board/investor reporting: Improve the quality of the monthly/quarterly story.
• Strategic finance: Evaluate acquisitions, financing, new markets, major investments, or hiring plans.
• Finance organization: Help you determine what to automate, outsource, or hire next.
• Your development: Give you a CFO-level sounding board and coach you toward becoming a stronger strategic finance leader.

I'd explicitly tell candidates:

"I'm not looking for someone to do my Controller job. I'm looking for someone who can make me better at the CFO-level parts of my job." That will dramatically improve the search.

AICPA's guidance makes essentially the same distinction: if the problem is unreliable accounting/close/reporting, you need controllership; if leadership needs better analysis and decision support, you may need FP&A/CFO-level capability.

2. Look for a former operator, not a consultant who only talks CFO

This is probably the most important hiring criterion.

I'd favor someone who has actually been:

• CFO of a similarly sized company
• VP Finance who grew into CFO responsibilities
• Controller → CFO in a high-growth environment
• Finance leader at a PE-backed or VC-backed company
• CFO of multiple growth-stage businesses
• An operator who has personally built forecasting, KPI, cash, board reporting, financing, and finance-team processes

Be cautious about someone whose experience is primarily:

"I advise companies on best practices." You want someone who can say:

"I had this exact problem at my last company. Here's what we did, here's what went wrong, and here's what I'd do differently." Experience across multiple companies can actually be a major advantage for a fractional CFO because they accumulate exposure to problems that would take years to encounter in a single organization.

3. Give them a real case during the interview

Don't make the interview primarily about their résumé.

Give them a sanitized version of an actual problem you're facing.

For example:

"We're growing 40% annually. Revenue is up, but cash conversion has deteriorated. Our forecast is frequently wrong by 15–20%. The CEO wants to hire aggressively, but I don't have confidence in the model. Here's our P&L, cash balance, AR/AP, headcount, and current forecast. What would you do?" Then stop talking.

Watch how they think.

A great fractional CFO will start asking questions such as:

• What are the major revenue drivers?
• How predictable is revenue?
• What's gross-margin behavior at different growth rates?
• What's causing the forecast variance?
• What's the AR aging?
• What are payment terms?
• How much of the cash problem is working capital versus profitability?
• What hiring assumptions are embedded in the plan?
• What does the CEO actually need to know?
• How often does management reforecast?
• What decisions are being made from the forecast?

That's much more revealing than asking, "Tell me about your CFO experience."

AICPA similarly recommends interviewing finance executives around real decisions and probing what information they needed, what assumptions they challenged, and how they communicated the recommendation.

4. Specifically test whether they'll make you better

This is where I'd be unusually demanding given your role as Controller.

Ask:

"If you were my CFO, what would you expect me to own versus what would you own?"

Then:

"What would you expect me to start doing differently over the next six months?"

And:

"What are the biggest gaps you typically see when Controllers transition toward CFO-level leadership?"

A good answer might involve moving you toward:

• business partnering
• forecasting
• KPI ownership
• capital allocation
• executive communication
• board presentations
• strategic planning
• organizational design
• influencing the CEO/COO
• translating financial results into operating decisions

AICPA specifically highlights the Controller's evolution from traditional accounting toward business strategy, planning, leadership, and business partnering.

5. Ask these 10 interview questions

I'd use these almost verbatim:

1. "Tell me about the fastest-growing company you've worked with. What was broken when you arrived?"
2. "What did you personally change?"
3. "What finance metrics did the CEO actually care about?"
4. "Tell me about a forecast you got wrong. Why was it wrong?"
5. "Tell me about a time you disagreed with the CEO."
6. "What's the difference between a good Controller and a good CFO?"
7. "If you were advising me as Controller, what would you want me to stop doing?"
8. "What would you want to accomplish in your first 90 days here?"
9. "Can you give me an example of someone you coached from Controller/VP Finance into a CFO-level role?"
10. "Can I speak with two CEOs or executives you've personally advised?"

6. References matter enormously

I'd actually make references part of the selection criteria rather than an administrative step.

Talk to:

• a former CEO
• a former COO
• a former board member/investor
• ideally someone who worked for the candidate

Ask:

"When this person disagreed with you, what did they do?" "What did they see that the rest of the management team didn't?" "Did they actually change the business, or were they primarily an excellent finance person?" "What would you have wanted them to do differently?" That last question is particularly useful.

7. Decide whether you want an individual or a fractional CFO firm

I'd generally start by looking for the individual, even if they happen to operate through a firm.

There are good reasons to use a firm—backup coverage, specialized tax/M&A/FP&A resources, and scalability—but you don't want to discover that you hired a "fractional CFO" and actually get a junior consultant doing most of the work.

Ask:

"Who exactly will I meet with every week?"

"What percentage of the work will you personally do?"

"If I call you with a major issue, what happens?"

"Who attends my CEO/board meetings?"

Some fractional CFO firms specifically target lower-middle-market and fast-growth businesses, so the model itself is well established; the key is making sure you're buying senior judgment rather than hours of outsourced accounting.

8. I'd probably structure the engagement like this

For someone in your position, I'd consider:

3-month initial engagement

• Weekly 60–90 minute session with you
• Monthly meeting with CEO/CFO-level leadership
• Review of monthly financial package
• Review of forecast/model
• Ad hoc access for major decisions
• One concrete strategic project

Then define 3–5 outcomes.

For example:

By day 30

• Understand business model and economics
• Assess reporting/forecasting
• Identify biggest finance/strategy gaps

By day 60

• Redesign forecast
• Establish management KPI framework
• Improve executive reporting

By day 90

• Present recommendations to CEO
• Establish finance roadmap
• Define your development roadmap as Controller

That gives you a very clean "did this person actually help?" test.

9. What I'd pay attention to during the search

Green flags

• Has actually operated as CFO
• Has experience in companies growing rapidly
• Can move effortlessly between accounting, FP&A, operations, and strategy
• Understands cash, not just EBITDA
• Asks excellent questions
• Challenges assumptions without being abrasive
• Explains complex things simply
• Has coached Controllers before
• Can talk to CEOs and operators without finance jargon
• Has made mistakes and can explain what they learned

Red flags

• Talks almost exclusively about accounting
• Wants to "clean up the books" when that's already your responsibility
• Can't explain business drivers
• Gives generic answers
• Has never challenged a CEO
• Can't describe a forecast that failed
• Wants to build elaborate models before understanding the business
• Is obsessed with credentials rather than outcomes
• Outsources most of the actual work to junior staff
• Tells you what you want to hear

And I'd be especially wary of someone who thinks the CFO's job is simply to produce better reports. Modern CFO expectations are much more oriented toward decision-making, transformation, and business partnership.

10. Where I'd actually find candidates

I'd use three channels simultaneously:

1. Your network: Ask CFOs, PE/VC operating partners, CEOs, CPAs, and finance executives, "Who is the best former CFO you've ever worked with who now does fractional work?"
2. Targeted LinkedIn search: Look for former CFOs/VP Finance at companies that resemble yours in size, growth rate, funding structure, and industry.
3. Fractional CFO firms: Interview several, but insist on meeting the actual person who would advise you.

I'd prioritize a warm referral over a polished fractional-CFO website every time.

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My ideal candidate profile for you

If I were writing the search brief, it would be roughly:

Former CFO/VP Finance with 10–20+ years of operating experience, including at least one high-growth company. Has personally built forecasting, KPI reporting, cash management, board reporting, and strategic finance processes. Comfortable working with a Controller rather than replacing one. Strong communicator and coach who can challenge a CEO constructively. Has helped Controllers/VP Finance leaders grow into CFO roles. Available 4–8 hours per month for ongoing advisory plus additional time for specific projects. And I'd make "excellent mentor to a Controller" one of the top three requirements—not an afterthought.

The right person shouldn't make you feel like you've hired someone to do finance for you. You should feel, after six months, that you've become a substantially better finance leader because they were in the room.

If you tell me your company's approximate revenue, growth rate, funding/PE status, industry, and what you most want help with, I can also give you a specific fractional-CFO scorecard, interview script, and compensation/engagement structure tailored to your situation.

As a Controller at a fast-growing company, bringing in a fractional CFO is one of the best moves you can make. It lifts the ceiling on strategic planning, takes the pressure off you for forward-looking forecasting and board-level storytelling, and gives you a powerful partner to scale the finance function.

Because you already own the books, compliance, and day-to-day accounting, your relationship with the fractional CFO needs to be collaborative and complementary.

Step 1: Define the Divide (Your Role vs. Theirs)

Before searching, map out exactly what you need off your plate and where you need backup:

• What you keep (The Controller domain): Clean closes, audit readiness, cash management operations, tax compliance, AR/AP, and internal controls.
• What they own (The Fractional CFO domain): High-level strategic modeling, scenario planning, equity/debt fundraising support, board deck creation, pricing strategy, and unit economic optimization.
• Where you collaborate: Budgeting and forecasting, variance analysis, and implementing new financial stack tools.

Step 2: Determine Sourcing Channels

You have two main paths to find quality fractional CFO talent:

1. Fractional CFO Agencies & Platforms: Firms like Paro or specialized boutique fractional CFO advisory firms vet, match, and manage talent. This is great if you want built-in backup if a candidate isn't a cultural fit.
2. Direct/Network Referrals: Ask your VC/PE partners, corporate lawyers, or fellow Controllers in peer communities. Founders and investors often have a "go-to" fractional CFO who has already seen your specific industry's hyper-growth trajectory.

Step 3: Key Criteria to Screen For

When evaluating candidates, look for these specific markers:

• Industry & Stage Relevancy: Have they taken a company from your current revenue/headcount tier to the next? A Series A-to-B SaaS CFO speaks a completely different language than a bootstrapped e-commerce CFO.
• EQ and Ego Check: As a Controller, you work in the weeds; they work in the clouds. They must respect the integrity of your accounting data and view you as a strategic partner, not a subordinate. Ask how they typically interface with a sitting Controller.
• Forward-Looking DNA: Look for someone obsessed with 13-week cash flow forecasts, unit economics (LTV/CAC, magic number), and driver-based models—not just someone who reviews historical income statements.

Step 4: High-Yield Interview Questions to Ask

Put candidates on the spot with operational and behavioral questions:

• "Walk me through a time when a founder wanted to make an aggressive hiring/spending move based on gut feel, and how you used data to change their mind."
• "How do you typically structure your cadence with a sitting Controller? What do you expect me to prep for you versus what you build yourself?"
• "What does your ideal month-end handoff or review look like with the accounting team?"
• "What is your approach to building a rolling 12-to-18 month forecast when the underlying assumptions change every 30 days due to rapid growth?"

Step 5: Design a Smooth Onboarding & Handshake

Once selected, set them up for a collaborative start:

• Give them view-only access to your ERP, billing platforms, and existing cap tables/models.
• Schedule a sync where you walk them through the "skeletons in the closet" of your current financial reporting so they don't have to guess during early board meetings.
• Establish a clear meeting rhythm (e.g., weekly sync with you to align on numbers, bi-weekly with leadership/founders).

If you'd like to narrow this down, let me know:

• Your company's current industry and growth stage (e.g., early SaaS, tech-enabled services, e-commerce)
• Your primary pain point right now (is it board reporting, cash runway modeling, or scaling operational complexity?)

I can help you tailor specific interview rubrics or a scope-of-work template for the hire.

If you’re a Controller at a fast-growing company, I’d approach this differently than a founder simply looking for “a CFO.” You want someone who complements your controllership function rather than taking it over.

A good fractional CFO should make you better at the forward-looking parts of finance: forecasting, capital allocation, KPIs, strategic analysis, and executive communication. Current guidance similarly emphasizes stage fit, decision support, forecasting, and the ability to work effectively with an existing finance team.

1. Define exactly what you want them to do

Before searching, write down the 3–5 problems you want this person to solve.

For example:

• Build a credible 13-week cash-flow forecast.
• Upgrade the annual budget and rolling forecast process.
• Build an executive KPI package.
• Help leadership understand unit economics and profitability by product/customer.
• Prepare materials for the board or investors.
• Develop a long-range financial model.
• Evaluate hiring, pricing, acquisitions, or expansion decisions.
• Help you transition from historical reporting toward strategic finance.
• Coach you on CFO-level thinking and communication.

That last one is particularly important given your role.

I'd explicitly tell candidates:

“I don't need someone to run accounting. I'm looking for someone who can be my strategic finance partner and help me grow from Controller toward CFO-level thinking.” That will immediately separate the right candidates from people who are essentially offering outsourced accounting.

2. Look for an operator, not a consultant who has adopted the CFO title

My ideal candidate would have actually been a CFO or VP Finance inside a growing company, rather than having spent their entire career doing fractional CFO consulting.

You want someone who has personally lived through things like:

• rapid headcount growth
• cash crunches
• missed forecasts
• changing business models
• fundraising/debt
• board meetings
• ERP/system changes
• pricing decisions
• margin pressure
• building finance teams
• difficult conversations with CEOs

Experience at a company with a similar growth trajectory and complexity is more valuable than a prestigious résumé alone.

CPA/MBA/CMA credentials can be nice, but I wouldn't make them the primary filter. The CFO skill you're buying is judgment, not another set of accounting credentials.

3. Make “works well with the Controller” a major criterion

This is probably the most important thing I'd screen for in your situation.

A bad fractional CFO will think:

“Accounting is tactical. I'll build my own model and tell management what the numbers mean.” A great one thinks:

“The Controller owns the integrity of the numbers. I'll partner with them to turn those numbers into decisions.” Ask candidates:

“Tell me about a Controller you partnered with. What did they own, what did you own, and where did you overlap?”

Then ask:

“If you thought the Controller's forecast or accounting treatment was wrong, how would you handle it?”

You want someone who can challenge you without undermining you.

Also ask:

“What would you expect me, as Controller, to own after you come in?”

Their answer will tell you a lot.

4. Give them a real case study

This is better than another hour of résumé discussion.

Give finalists a sanitized version of your company's:

• P&L
• balance sheet
• cash flow
• current forecast
• headcount
• revenue metrics
• maybe 12–24 months of historical results

Then give them 60–90 minutes and ask:

“You're joining us as fractional CFO. What do you see? What questions would you ask? What would you change? What would you want to accomplish in your first 90 days?” Don't primarily grade whether their conclusions are “right.”

Watch how they think.

A strong candidate will quickly ask about things like:

• revenue quality
• gross-margin drivers
• working capital
• cash conversion
• customer concentration
• forecast accuracy
• hiring assumptions
• revenue pipeline
• pricing
• cohort/unit economics
• balance-sheet risks
• KPI definitions

And they'll distinguish “I need more information” from pretending they know the answer.

5. Ask these interview questions

I'd use these almost verbatim:

Strategic ability

1. “What's the most important financial decision you helped a CEO make?”
2. “Tell me about a forecast you got wrong. Why was it wrong?”
3. “Give me an example where your financial analysis changed the company's strategy.”
4. “How do you decide which KPIs the CEO should actually pay attention to?”
5. “How do you approach a company where revenue is growing quickly but cash is deteriorating?”

Controller partnership

1. “What do you expect from a Controller?”
2. “What should a Controller not be responsible for?”
3. “How do you divide ownership of the forecast between the CFO and Controller?”
4. “How do you handle disagreements with the accounting team?”
5. “What would you want me to stop doing once you join?”

Executive communication

1. “Explain a complicated financial issue to me as if I'm a non-financial CEO.”

Then deliberately interrupt them and ask questions.

You want to see whether they can think conversationally, not just deliver a polished presentation.

Operating model

1. “How many clients do you currently have?”
2. “How much time would we actually get from you personally?”
3. “Who else would work on our account?”
4. “What happens when I need you urgently?”

This matters because some “fractional CFO” firms sell you a senior partner and then hand the actual work to someone much more junior. Availability and the actual staffing model should be explicit before you sign.

6. Get three references—and ask uncomfortable questions

Don't just ask:

“Were you happy with them?” Ask the former client:

• “What did they actually accomplish?”
• “What did they not accomplish?”
• “What was frustrating about working with them?”
• “How much of the work was actually done by the person we met?”
• “Did they make your Controller/finance team better or create friction?”
• “Would you hire them again?”
• “What type of company should not hire this person?”

That last question is surprisingly revealing.

References from CEOs and Controllers/CFOs they've worked alongside are especially useful for you.

7. Structure it as a 90-day engagement

I would resist signing a long-term commitment immediately.

A good structure might be:

First 30 days

• Finance/forecast diagnostic
• Review reporting and KPIs
• Assess cash forecasting
• Meet CEO/leadership
• Identify major financial risks
• Deliver prioritized recommendations

Days 31–60

• Implement improved forecast
• Establish KPI/management reporting
• Build financial model
• Establish CFO/Controller operating cadence

Days 61–90

• Board/leadership reporting
• Strategic planning
• Scenario analysis
• Capital allocation framework
• 12-month finance roadmap

Then evaluate whether they're actually creating leverage.

A recent hiring guide similarly recommends a paid 60–90 day trial rather than immediately making a long commitment.

8. Be very clear about the operating cadence

I'd want something like:

• Weekly: 30-minute CFO/Controller meeting
• Monthly: financial review + forecast
• Quarterly: strategic planning/scenario analysis
• As needed: CEO/leadership decision support
• Board cycle: preparation and presentation support

And define deliverables, not just hours.

“20 hours/month” isn't nearly as useful as:

“By the 10th business day, we'll have a management package, updated forecast, variance analysis, cash outlook, and a written summary of the three most important financial issues.” The best fractional CFO engagements are structured around decisions and outcomes, rather than simply selling hours.

9. Where I'd look

I'd prioritize:

1. Your existing CFO/CEO/PE/investor network — referrals are probably the highest-quality channel.
2. Former CFOs/VP Finance in your industry who have moved into fractional work.
3. Boutique fractional CFO practices.
4. Professional finance networks and executive recruiting contacts.

You can also use marketplaces and fractional-CFO firms, but I'd use them primarily to generate candidates, not outsource your judgment about who is good. Referrals, firms, marketplaces, and professional associations are all common sourcing channels.

My scorecard

I'd score finalists out of 100:

I would not give credentials more than ~5% of the score.

The killer combination for you is:

Former operating CFO/VP Finance + experience scaling companies + excellent FP&A/strategic finance skills + genuinely collaborative with Controllers. And one final thought: the best fractional CFO for you may actually be someone who sees your Controller role as a developmental opportunity rather than a reason to replace you. If your longer-term goal is to move toward CFO, explicitly make that part of the hiring criteria. The right person can effectively become your CFO mentor, executive sounding board, and strategic counterpart while you retain ownership of controllership.

If you tell me your industry, approximate revenue, growth rate, funding/ownership structure, and what you most want the CFO to help with, I can give you a much more specific candidate profile + interview scorecard + 90-day scope.

Yes. Since you’re already the Controller, I’d hire a fractional CFO very differently from how a founder might. Your goal is not to find someone who will “do finance.” You want a senior thought partner who complements you—someone who can operate above the close and help management make better decisions.

1. First, define what you want the CFO to do for you

The biggest hiring mistake is starting with “we need a fractional CFO” rather than defining the decisions and gaps. Current guidance emphasizes matching the CFO to company stage, finance-team maturity, capital plans, and specific strategic needs.

For a Controller, I'd look for someone who can own or advise on:

• FP&A: rolling forecasts, annual planning, scenario analysis
• Cash & capital: cash strategy, runway, debt/equity decisions
• Executive partnership: translating financial results into business decisions
• Board/investor reporting: turning your accounting outputs into an executive narrative
• KPIs: determining what the company should actually measure
• Strategic decisions: pricing, hiring plans, customer economics, expansion, acquisitions
• Finance-team design: helping you determine what systems/people you need as the company scales
• Your own development: giving you CFO-level perspective and coaching

Importantly, don't pay CFO rates for Controller work. The Controller should generally own the integrity of the books, close, financial statements, and controls; the CFO should use those numbers to drive strategy.

2. Your ideal candidate profile

I'd prioritize operating experience over credentials.

Look for someone who has:

1. Been a CFO, not merely advised CFOs.
Ask: “What companies have you personally operated as CFO, and what decisions did you personally own?”

2. Worked at your company's stage and complexity.
A former Fortune 100 CFO may have an impressive résumé but be surprisingly ineffective in a $20M–$100M fast-growing company where systems are imperfect and everyone wears multiple hats. Stage/revenue-band experience is particularly important.

3. Built something.
You want someone who has actually implemented forecasting, KPI reporting, planning processes, financing, board reporting, ERP changes, etc.—not just reviewed them.

4. Strong commercial instincts.
The best fractional CFOs don't just say, “Gross margin declined 180 bps.” They ask, “Why did it decline, what should we do about it, and what's the financial consequence of each option?”

5. The ability to challenge the CEO.
You want someone comfortable saying, “I don't think we should hire those 20 people yet,” or “That revenue target isn't supported by the economics.” A recent practitioner guide makes essentially the same point: constructive pushback is an important differentiator.

6. Excellent interpersonal skills.
This is especially important because you will be their closest finance counterpart. If the person treats Controllers as accounting support staff, it's going to be miserable.

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3. I'd actually interview them as a Controller

This is where you have an advantage.

Don't let the CEO conduct the entire interview. You should probe whether this person can actually make your job—and the company's finance function—better.

Ask questions like:

“Here's our current monthly reporting package. What would you change?”

Then give them your actual package.

Ask:

“Here's our three-statement forecast. Where would you be skeptical?”

And:

“Our CEO wants to grow 40% next year. What financial analysis would you want before supporting that plan?”

And especially:

“If you were my CFO, what would you expect me to own versus what would you own?”

That last question is enormously revealing.

A good candidate should be able to articulate something like:

Controller → accounting, close, controls, reporting accuracy, technical accounting, audit, working-capital execution

CFO → forecasting, capital allocation, strategy, executive decision support, investor/board relationships, financing, M&A, long-range planning

Shared → budgeting, KPIs, cash management, systems, hiring, performance analysis

If they want to take over everything you currently do, that's probably not the right relationship.

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4. Give finalists a real case study

I'd make this the centerpiece of the process.

Give each finalist a sanitized version of your actual financials:

• P&L
• balance sheet
• cash flow
• current forecast
• revenue/customer metrics
• headcount
• perhaps your existing board package

Then give them 60–90 minutes to prepare.

Ask them to present:

1. What worries you?
2. What do you think management is missing?
3. What would you investigate first?
4. What three decisions would you put in front of the CEO?
5. What would you change about our reporting?
6. What would you want the Controller to do differently?
7. What would you want to accomplish in your first 90 days?

You'll learn more from this than from an hour of résumé discussion.

5. Ask their references a different set of questions

Don't ask, “Were they a good CFO?”

Ask:

• “What did they actually accomplish?”
• “What was happening in the business when you hired them?”
• “What did they struggle with?”
• “How did they interact with the Controller?”
• “Did they improve the finance team or just produce more presentations?”
• “Tell me about a time they disagreed with the CEO.”
• “Would you hire them again?”
• “What would you have wanted to know before hiring them?”

That last question is particularly good.

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6. Be careful about the economics

The 2026 market is pretty broad because “fractional CFO” encompasses very different levels of service. Published market estimates range from roughly $3K–$10K/month for many smaller/growth companies, while more embedded or sophisticated engagements can reach $10K–$20K+ per month. Hourly rates commonly land around $200–$500+.

Don't compare candidates solely on price.

Instead ask:

“What am I buying?”

For example, a $6K/month advisor who attends one monthly meeting and reviews a forecast is fundamentally different from a $12K/month CFO who:

• meets weekly with the CEO/Controller,
• owns the forecasting process,
• prepares the board package,
• participates in strategic planning,
• advises on financing,
• and is available during major decisions.

I'd favor a fixed monthly retainer with explicit deliverables and a 90-day initial engagement rather than an open-ended hourly arrangement. Retainers are common for ongoing CFO relationships, while fixed-fee projects can make sense for a defined initial diagnostic.

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7. What I'd put in the initial 90-day scope

This is where you can make the engagement extremely concrete.

Days 1–30 — Diagnose

• Review financial reporting
• Review forecast/model
• Understand business model and KPIs
• Assess finance organization
• Meet CEO/leadership
• Identify reporting/control gaps
• Produce prioritized recommendations

Days 31–60 — Build

• Improve forecast
• Establish KPI framework
• Establish management reporting cadence
• Define annual planning process
• Improve cash/working-capital visibility
• Develop executive/board reporting

Days 61–90 — Embed

• Run first planning/forecast cycle
• Present to leadership
• Establish CFO/Controller operating cadence
• Define finance-team roadmap
• Identify systems/hiring priorities
• Create 6–12 month finance roadmap

That gives you a very clean way to determine whether you're getting actual CFO leverage rather than another layer of reporting.

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8. The biggest red flags

I'd be wary if the candidate:

• spends most of the interview talking about their résumé
• can't explain exactly what they personally accomplished
• talks primarily about accounting rather than decisions
• wants to rebuild everything immediately
• can't understand your existing financial model
• has 8–10+ clients and claims unlimited availability
• outsources the substantive work to junior staff without being transparent
• produces generic KPI dashboards
• promises to “fix finance” without understanding the business
• seems threatened by a strong Controller
• has no clear distinction between CFO and Controller responsibilities
• won't provide references from former CEOs/Controllers
• can't give you a concrete first-90-days plan

That last group matters because the fractional CFO market is unusually heterogeneous; the title itself tells you relatively little about the person's actual level.

The litmus test

I'd ultimately ask yourself:

“After six months with this person, will I be a substantially better Controller, and will the CEO have a substantially better understanding of the business?”

If the answer is yes, you've probably found the right fractional CFO.

If instead the answer is “They'll take some work off my plate,” you're probably hiring a senior finance consultant—not the CFO-level partner you're actually looking for.

If you tell me (1) company revenue, (2) growth rate, (3) industry, (4) funding/ownership structure, (5) size of your finance team, and (6) what you personally want the CFO to help you with, I can turn this into a specific candidate scorecard + interview questions + 90-day SOW tailored to your situation.

As a Controller at a fast-growing company, you occupy a unique sweet spot. You already own the historical numbers, the close, and the daily compliance . What you (and leadership) need from a fractional CFO is high-level forward-looking strategy, dynamic financial modeling, and a strategic sounding board for the executive team.

Because the fractional CFO market has low barriers to entry and anyone can put "CFO" on LinkedIn, your technical vetting is critical. Here is a step-by-step blueprint to finding, vetting, and onboarding a top-tier fractional CFO.

1. Define the Exact Gap You Need Filled

Don't hire a generalist "vibes-based" CFO. Clarify what your company's growth bottleneck is right now:

• The Fundraiser / Capital Allocator: If an equity raise or debt financing is looming, you need someone who has owned the data room and can "hold the room" with institutional investors.
• The FP&A / Unit Economics Expert: If you are scaling fast but burning cash unpredictably, you need a builder of living 13-week cash flow models and CAC/LTV pricing engines.
• The Operational Generalist: If leadership keeps making massive hiring and expansion choices on gut-feel rather than data, you need an operator who can install a strategic cadence.

2. Screen for Real CFO Pedigree

Anyone can do bookkeeping or controllership, but the "CFO seat" requires a different kind of accountability.

• Check the CV: Look for candidates who have actually sat in a full-time CFO or VP of Finance seat at a company of similar complexity or scale—not just career consultants or displaced controllers looking for a stopgap before their next corporate job.
• Industry Fluency: Prioritize candidates who know your specific business model (e.g., B2B SaaS, tech-enabled services, e-commerce). They should immediately understand your key drivers (churn, net revenue retention, contribution margins) without a learning curve.

3. Ask the Hard Screening Questions

When you interview candidates, bypass the generic pleasantries and test their advisory spine:

• "Can you walk me through a time you had to tell a CEO or board something they deeply did not want to hear, and how you handled it?" (You want an advisor, not a yes-man).
• "What does a healthy 13-week cash flow model look like for our stage, and what breaks first if our top-line dips by 20%"
• "Are you actively searching for a full-time corporate role right now?" (Avoid candidates who will bail on you the second a full-time offer lands).
• Look into specialized advisory firms or curated networks like Go Fractional or Paro if you want pre-vetted fractional talent rather than sourcing cold from the open market.

4. Align on Scope, Cadence, and Budget

Fractional engagements usually run on a monthly retainer ($5,000 to $15,000+ depending on hours/seniority). Clarify the operating rhythm upfront:

• How many hours per week/month are you actually buying? (5–10 hours a month is a sounding board; 15–20+ hours a week is an embedded executive).
• What are the strict tangible outputs ? Demand a living financial model, a clean board deck template, and a reliable cash runway forecast—not just attendance at meetings.

To help tailor this approach, could you share:

• What is your company's current revenue stage / growth rate (e.g., ARR or annual top-line)?
• What is the primary catalyst driving the need for a fractional CFO right now (fundraising, cash crunch, scaling pains, or board pressure)?

Hiring a fractional Chief Financial Officer (CFO) as a Controller is a strategic move. A great fractional CFO will elevate your strategic impact, handle high-level capital allocation and board management, and lean on you for the granular data.

Here is a step-by-step framework to find, vet, and hire the right fractional CFO for your company:

1. Define the Scope and Objectives
   • Strategic Goals: Determine what specific gap the fractional CFO needs to fill (e.g., preparing for a Series B x² funding round, optimizing cash flow, implementing an ERP system, or restructuring pricing models).
   • Time Commitment: Estimate how many hours per week or month you actually need them (typically 10 to 20 hours a month, or a couple of days a week).
2. Establish the Division of Labor
   • Your Role (Controller): You own the books, compliance, close process, daily cash management, and foundational data integrity.
   • Their Role (CFO): They own forecasting, scenario modeling, investor/board relations, strategic growth decisions, and high-level financial storytelling.
   • Alignment: Make sure leadership and the fractional CFO understand that you are the operational finance gatekeeper and they are the strategic partner.
3. Sourcing Candidates
   • Specialized Advisory Firms: Look at top-tier fractional CFO agencies and platforms that vet talent specifically for high-growth tech, SaaS, or product companies (such as FocusCFO or Burkland Associates).
   • Network & Recommendations: Ask your VC/PE backers, startup legal counsel, or peer Controllers in your industry whom they trust.
   • Independent Platforms: Search through vetted fractional networks like Catalant or LinkedIn specialized fractional groups.
4. Screening and Vetting
   • Industry Experience: They must have lived and breathed your specific business model (e.g., B2B SaaS unit economics like LTV/CAC look different than e-commerce inventory management).
   • Growth Stage Match: Ensure they have experience scaling a company from your current revenue milestone to the next tier (e.g., $5M to $20M ARR).
   • Cultural Fit with You: Since you will work in the trenches together daily/weekly, interview them yourself. Make sure they respect your mastery of the numbers and view you as a partner, not a subordinate.
5. Structuring the Engagement
   • Retainer vs. Project: Opt for a monthly retainer with a defined number of hours or deliverables, plus a clear mechanism for scaling hours up during busy seasons (audits, fundraising).
   • Clear KPIs: Define what success looks like in the first 90 days (e.g., clean board deck template delivered, cash burn optimized by y%, or forecast variance reduced).

If you want to tailor this search, tell me:

• What is your company's industry and current revenue range?
• What is the primary pain point or goal driving the need for a CFO right now?

I can help you draft an interview scorecard or set of technical questions to ask them.

If you’re already the Controller, I’d hire the fractional CFO as your strategic counterpart, not as another senior accountant. The best setup is: you own accounting, close, controls, and financial data; the CFO turns that information into decisions, forecasts, capital strategy, and executive-level insight.

A fractional CFO is generally supposed to provide CFO-level strategy rather than bookkeeping or routine transaction processing.

1. Define exactly what you want them to do

Before interviewing anyone, write down the 3–5 problems you want them to solve. For a fast-growing company, I'd look for some combination of:

• Forecasting: rolling 13-week cash forecast + 12–24 month financial model
• FP&A: budget, forecast, variance analysis, scenario modeling
• KPI architecture: identifying the metrics management should actually run the business on
• Unit economics / profitability: customer, product, location, channel, or segment profitability
• Capital strategy: debt vs. equity, fundraising, cash management
• Board/investor support: board package, financial narrative, investor questions
• Finance-team design: helping you decide when to add FP&A, accounting, treasury, etc.
• Strategic projects: pricing, acquisitions, expansion, restructuring, systems
• Executive partnership: helping the CEO/COO translate operational decisions into financial consequences

Those are much closer to the appropriate fractional-CFO mandate than "review the books."

2. Look for someone who has actually sat in the CFO seat

This is probably my #1 hiring filter.

Don't be overly impressed by someone who has spent their career selling "fractional CFO services." Ask:

"Tell me about the last company where you were actually accountable for the finance function. What was revenue, growth rate, headcount, funding/debt situation, and what decisions did you personally own?"

I'd strongly prefer someone who has previously been a CFO, VP Finance, or equivalent inside a growing company, rather than someone whose entire background is public accounting or consulting. A current hiring guide similarly recommends verifying that candidates have actually held a CFO/equivalent role and examining the size and complexity of those companies.

CPA/MBA/CFA credentials can be useful, but I'd treat them as secondary evidence, not the primary qualification.

If you care about CPA credentials, AICPA's directory can also be used to verify credentials/membership.

3. Your interview should be a case study, not a résumé review

Give the finalist a simplified version of your actual situation.

For example:

"Revenue is growing 40% YoY. Gross margin has fallen from 48% to 43%. EBITDA is positive, but cash is declining. AR has grown substantially faster than revenue. We expect another 30% growth next year. The CEO wants to open two new locations and hire 25 people. What would you want to understand before telling us whether we can afford it?"

Then shut up.

A good CFO should start asking questions.

I'd expect questions about:

• Working-capital cycle
• AR aging / collections
• Customer concentration
• Revenue quality and recurring vs. nonrecurring revenue
• Gross-margin drivers
• Headcount economics
• Capex
• Debt covenants
• Cash conversion
• Forecast accuracy
• Pricing
• Contribution margin
• Sales pipeline / bookings
• Hiring plan
• Seasonality
• Existing financial reporting

A weak candidate will immediately start telling you what spreadsheet they would build.

A strong candidate will first figure out what decision you're actually trying to make.

4. Test whether they can work with a Controller

This is particularly important in your situation.

Ask:

"If you were my fractional CFO and I'm the Controller, what would you expect me to own, and what would you own?"

A great answer might look something like:

There will obviously be overlap, but there shouldn't be ambiguity about who owns what.

I'd be wary of a CFO who wants to "take over finance" without understanding that you're already the person running the accounting engine.

Conversely, I'd also be wary of one who says, essentially, "You give me the numbers and I'll tell the CEO what they mean." You want someone willing to build the system with you, not operate above you.

5. Ask these 10 interview questions

These will tell you considerably more than "Tell me about yourself":

1. "What's the fastest-growing company you've supported as CFO? What did you personally do?"
2. "Tell me about a time your financial analysis caused management to change a major decision."
3. "What would you want to accomplish in your first 30/60/90 days here?"
4. "What should a CEO see every week? What should they see every month?"
5. "How do you build a forecast when the historical data isn't particularly clean?"
6. "How do you determine which KPIs actually matter?"
7. "Tell me about a forecast you got badly wrong. Why was it wrong?"
8. "How do you divide responsibilities between yourself and a strong Controller?"
9. "Give me an example of a time you disagreed with a CEO."
10. "Can I speak with two CEOs/founders you've worked with and one finance leader you've worked alongside?"

That last reference is important. Talk to the finance person who worked underneath/across from them, not just their favorite CEO client.

6. Give them a 90-day mission

Don't hire someone on the basis of "strategic CFO support."

That's how you end up paying a lot of money for interesting conversations.

Instead, I'd make the first 90 days tangible:

Days 1–30

• Understand business model and economics
• Assess finance/reporting infrastructure
• Review historical financials
• Identify major forecasting/reporting weaknesses
• Establish CFO/Controller responsibilities
• Produce initial cash and operating forecast

Days 31–60

• Build/refine financial model
• Establish management KPI package
• Implement forecast cadence
• Identify margin/cash opportunities
• Establish executive finance meeting cadence

Days 61–90

• Deliver management dashboard
• Produce actionable scenario analysis
• Establish annual/rolling planning process
• Recommend finance-team structure
• Present 6–12 month finance roadmap

A current fractional CFO job specification I found uses similar tangible outcomes—financial reporting, cash forecasting, profitability analysis, KPI development, and financing readiness—rather than merely "strategic advice."

7. Start with a paid trial

This is probably the smartest way to de-risk the hire.

Instead of immediately signing a year-long engagement:

4–6 week paid diagnostic → 90-day engagement → ongoing retainer

Give them access to enough information to do real work.

Ask them to deliver:

1. Their assessment of your finance function
2. A forecast
3. Their recommended KPI package
4. Three financial/operational risks they've identified
5. Three opportunities they've identified
6. Their recommended Controller/CFO operating model

You'll learn far more from that than from another four interviews.

8. Don't over-index on industry experience

Industry experience is helpful, but I'd rank these higher:

1. Has actually been a CFO
2. Has operated through rapid growth
3. Can think commercially
4. Can communicate with CEOs
5. Knows how to build FP&A/forecasting infrastructure
6. Works exceptionally well with Controllers
7. Has relevant industry experience

Someone who has been a fantastic CFO at a company with similar growth dynamics may be much better than someone who knows your industry but has mostly done accounting/advisory work.

9. Be careful about the "fractional CFO firm"

I'd interview both:

• Independent CFOs
• Fractional CFO firms

The firm gives you more bench strength and potentially backup coverage. The independent may give you more senior attention and a closer relationship.

But ask a firm:

"Who exactly will be doing the work? Can I interview that person? What percentage of their time will actually be allocated to us?"

You don't want to hire the impressive partner who sells you and then receive a much more junior person.

10. What I'd consider a great outcome for you

If you're the Controller, the ideal fractional CFO should eventually make your job better and more strategic.

You should be able to say:

"I have confidence in the numbers. I own the accounting function. My CFO gives the CEO and executive team the financial perspective they need to make decisions—and helps me build the finance function as the company scales."

That's a much better arrangement than bringing in a "CFO" who spends their time reviewing your journal entries.

One final thought: because you're hiring this person to advise you as Controller, I'd explicitly tell candidates that you're looking for a coach/advisor/strategic partner, not someone who is going to make you feel like you're interviewing for your own job. That single framing choice will probably change the quality of candidates you attract.

If you tell me your company's approximate revenue, growth rate, industry, funding/debt situation, and what you currently own as Controller, I can also give you a very specific fractional CFO scorecard + interview case + 90-day scope tailored to your situation.

If you’re already the Controller, I’d hire a fractional CFO as a strategic counterpart, not another senior accountant. The best relationship is usually: you own the integrity and mechanics of the finance function; the CFO helps you and leadership decide what the numbers mean and what to do next. That distinction is consistent with how the role is generally defined today.

1. Define the gap before you search

Write down the 3–5 things you want this person to take off your plate or help you solve. For a fast-growing company, that might be:

• Build/upgrade the 3-statement financial model and forecast
• Own a 13-week cash forecast and capital planning
• Establish meaningful KPIs and management reporting
• Help management with pricing, margins, hiring plans and investment decisions
• Prepare for a fundraise, debt financing, M&A or board process
• Develop the finance org and determine what you should hire next
• Be your thought partner on accounting/finance issues that have strategic implications

Those are much better requirements than simply saying "we need CFO-level help." Forecasting, cash management, board reporting, fundraising and finance-team structure are common fractional-CFO responsibilities.

2. Look for someone who has actually been a CFO

I'd strongly prefer someone who has held a real CFO/VP Finance role in a company similar to yours, rather than someone who has spent their career doing accounting consulting.

Your ideal candidate has:

Stage match > impressive résumé.

Ask:

"Tell me about the last two companies you worked with that were at roughly our size and growth rate. What was broken when you arrived, what did you change, and what was different six months later?"

You're looking for someone who's lived through the problems you're experiencing—not someone who knows all the CFO vocabulary.

Also look for someone who has:

• Managed a finance team
• Presented to CEOs/boards/investors
• Built operating models and forecasts
• Made decisions with incomplete information
• Worked through rapid hiring/revenue growth
• Implemented finance systems/processes
• Been accountable when their forecast was wrong

Industry and stage fit are particularly important; a CFO who scaled a $500M public company isn't necessarily the right advisor for a $20M rapidly growing private company.

3. Interview for judgment, not technical knowledge

Since you're the Controller, I'd actually make the interview somewhat adversarial.

Give them a simplified version of your company's situation:

Revenue is growing 70%. Gross margin is declining. Headcount is growing 50%. Cash is $8M. The CEO wants to hire 30 people. Sales says pipeline is excellent. The board wants a forecast.

Then ask:

"What would you want to know before telling the CEO whether they should hire those people?"

A great CFO will immediately start asking questions about:

• Revenue quality and forecast confidence
• Gross-margin drivers
• Cash conversion
• Hiring timing
• Working capital
• Customer concentration
• Pipeline conversion
• Unit economics
• Runway
• Scenario analysis

A mediocre one will start talking about building a pretty 3-statement model.

Another great question:

"Tell me about a time you told a CEO or board something they didn't want to hear."

You want someone who can push back without becoming political.

4. Make the Controller/CFO relationship part of the interview

This is probably the most important thing in your situation.

Ask explicitly:

"What do you expect the Controller to own, and what do you expect the CFO to own?"

I would want an answer roughly like:

There will obviously be overlap. But if the CFO wants to take over your close, review journal entries, or spend their time fixing accounting mechanics, you probably aren't buying CFO expertise—you're buying an expensive Controller.

Conversely, if they want to build a forecast but can't understand or challenge the underlying accounting, that's dangerous.

5. Give finalists a paid project

I'd avoid making the first commitment a six- or twelve-month retainer.

Give your top 2 candidates essentially the same exercise:

"Spend 2–3 weeks assessing our finance function and give us your recommendations."

Give them reasonable access to:

• Historical P&L / balance sheet / cash flow
• Current forecast
• Budget
• Revenue data
• Headcount
• Cash position
• Existing KPIs
• Current board/investor reporting

Ask them to produce:

1. Financial health assessment
2. Top 5 risks
3. Top 5 opportunities
4. Forecast/model recommendations
5. 90-day priorities
6. What they would want the Controller to change
7. What they would want the CEO to change

You'll learn far more from this than from another hour of résumé discussion. A scoped initial project is also recommended as a way to test fit before committing to a longer engagement.

6. Call references yourself

Don't just ask for "references." Ask for two former CEOs/founders and ideally one former finance colleague.

Ask the CEO:

"Would you hire this person again?"

Then:

"What did they actually accomplish?"

"What were they not good at?"

"How much did you have to manage them?"

"Did they make you a better operator?"

"How did they work with your Controller?"

That last question is particularly valuable for you.

7. Be suspicious of the classic fractional-CFO red flags

I'd walk away from someone who:

• Can't give you specific examples from comparable companies
• Has never actually been a CFO/VP Finance
• Talks mostly about bookkeeping/accounting
• Produces lots of polished dashboards but can't explain the decisions they changed
• Has 6–8+ clients and claims they can be deeply embedded
• Won't tell you exactly who will do the work
• Has a junior employee doing most of the work after selling you on their own expertise
• Gives vague deliverables
• Doesn't challenge you during the interview
• Doesn't understand your business model
• Can't explain complicated financial concepts simply

The bait-and-switch from senior partner to junior staff is specifically worth investigating with fractional firms.

8. Structure the engagement around deliverables

Don't pay for "20 hours of CFO time."

Pay for an operating cadence.

For example:

Weekly

• Cash/runway review
• Key business/financial issues
• CEO/Controller discussion

Monthly

• Forecast update
• Actual vs. budget/forecast
• KPI package
• Margin/unit-economic analysis
• Management meeting

Quarterly

• Reforecast/scenario planning
• Board materials
• Strategic finance review
• Hiring/capital allocation recommendations

And specify exactly what you own versus what they own.

Current market guides put many fractional CFO engagements roughly in the $4K–$15K/month range, with considerable variation by company size, complexity, seniority and scope. www.alehar.comfinative.co Don't optimize for the lowest rate; optimize for senior attention per dollar and measurable business impact.

My ideal profile for you

If I were hiring for your situation, my target would be:

Former CFO/VP Finance who has personally scaled a company 2–3 stages beyond where you are today, has strong FP&A/operating experience, is comfortable with accounting, has dealt with investors/boards, and genuinely enjoys partnering with a Controller.

And I'd tell candidates:

"I don't need you to be my boss or to run accounting. I need you to make me and the executive team better at using finance to run the company."

That's a very attractive fractional-CFO mandate—and it should naturally filter out a lot of people who are really offering outsourced accounting.

If you tell me your company stage (revenue/headcount), industry, funding status, and what you most want the CFO to help with, I can also give you a specific candidate scorecard + 10 interview questions + a sample 90-day scope tailored to your situation.

Hiring a fractional CFO as a Controller is a strategic move. It can elevate your own career, offload high-level corporate finance burdens, and steer the company through hyper-growth. Because you are the Controller, you are uniquely positioned to find someone who actually complements your skillset rather than stepping on your toes.

Here is a step-by-step guide to finding, vetting, and hiring the right fractional CFO:

1. Define the Scope and Gaps

• Strategic needs : Identify what is missing between your accounting/reporting purview and the CEO's growth targets (e.g.,𝑀&𝐴, venture capital fundraising, advanced cash flow modeling, pricing strategy).
• Time commitment : Determine how many hours per week or month you actually need (typically ranges from 10 to 40 hours per month).

1. Decide Between an Agency or Independent

• Fractional CFO Firms : Agencies provide vetted talent, built-in backups if your CFO is sick or leaves, and standardized toolkits. Good examples include firms like Hive Strategy or Focus CFO.
• Independent Consultants : Often more flexible and specialized, though finding them relies heavily on professional networking, platforms like Catalant , or referrals.

1. Involve Yourself in the Interview Process

• Technical alignment : Since you will be working hand-in-hand on the books, closing cycles, and board decks, your technical endorsement matters immensely to the CEO.
• Cultural and ego check : Ensure the fractional CFO sees you as a partner, not a subordinate. They should want to leverage your mastery of the numbers to tell a high-level story.

1. Ask the Right Vetting Questions

• Industry experience : "Have you taken a company through our exact growth stage (A round to B round, or $5M to $20M ARR)?"
• Operational style : "How do you split responsibilities with a strong Controller?" (The right answer: "I handle the forward-looking strategy and external capital; you own the historical accuracy and internal controls.")
• Tech stack fluency : "What is your experience with our stack (e.g., QuickBooks, NetSuite, Mosaic, or Advanced Excel)?"

1. Structure the Engagement

• Trial period : Propose a 30-to-60-day pilot project (such as revamping the upcoming board deck or building a 12-month rolling forecast) to test the working relationship.
• Clear KPIs : Define what success looks like—whether it is reducing cash burn by a specific percentage or delivering accurate scenario models 3 days before month-end.

If you'd like, tell me:

• What industry is your company in?
• What is your current annual revenue or funding stage?

I can help you outline specific interview questions or define the exact division of labor between your role and the fractional CFO.