We run a managed services model. What PSA is best for handling recurring subscription revenue alongside project-based revenue?

For a managed services provider (MSP) running recurring subscription revenue + project-based revenue, the “best” PSA depends mostly on your operational complexity, not just feature count. You want a PSA that can treat a managed service agreement (MSA) as a first-class revenue object while also handling SOWs, milestones, time/materials, utilization, and profitability.

My shortlist would be:

ERP Research Enterprise Software Review## My recommendation by MSP profile

1. If you are a mature MSP (multiple engineers, complex contracts)

Choose ConnectWise PSA.

It is usually the strongest fit when you have:

• Per-user/per-device managed services agreements
• Multiple service tiers
• SLA-driven support
• Recurring invoices plus project invoices
• Procurement and hardware/software resale
• Need for deep RMM integrations

The tradeoff is that it becomes a business system you need to operate, not just install.

2. If you are scaling (roughly 5–50 technicians) and want a cleaner platform

Strongly consider HaloPSA.

It tends to fit organizations that want:

• Flexible workflows
• Better customization
• Contract-based billing
• Project delivery alongside support
• Less legacy complexity than some older PSA platforms

ERP Research NUOPTIMA### 3. If your revenue model is heavily recurring with a lot of automation

Look closely at:

• Agreement management
• Automated billing adjustments
• Contract profitability reporting
• Renewal tracking
• Revenue recognition/export capability

A PSA should answer questions like:

• “Is this customer’s monthly recurring revenue profitable?”
• “Are we over-delivering against the agreement?”
• “Did the migration project make money?”
• “What capacity do we need next quarter?”

Features I would make non-negotiable

For your model, I would require:

• Native recurring billing

• Monthly subscriptions

• Seat/device/user adjustments

• Proration

• Contract renewals

• Project accounting

• Fixed-fee projects

• Milestones

• Budget vs actual

• Margin reporting

• Single client financial view

• MRR/ARR

• Open projects

• Support cost

• Gross margin

• Resource planning

• Technician utilization

• Capacity forecasting

• Bench time

• Accounting integration

• QuickBooks/Xero for smaller firms

• ERP integration (such as NetSuite) if you are moving upmarket

ERP ResearchIf you tell me:

1. number of technicians,
2. approximate annual revenue,
3. your RMM (NinjaOne, Datto, ConnectWise Automate, etc.), and
4. whether projects are mostly fixed-fee or time-and-materials,

I can narrow this to a top 2–3 recommendation.

When running a hybrid managed services model that balances recurring subscription revenue (MRR/ARR like monthly retainer, seat counts, and cloud licenses) with project-based revenue (fixed-fee or time-and-materials implementations), you need a Professional Services Automation (PSA) tool that handles continuous recurring billing and robust project accounting/milestones.

The top options on the market handle this mix through distinct approaches:

1. HaloPSA (The Modern Standard for MSP/Hybrid Models)

HaloPSA has rapidly become a preferred choice for MSPs and IT service providers moving away from legacy platforms.

• How it handles Recurring Revenue: Uses advanced recurring invoicing engines that scale quantities dynamically based on active license counts, user counts, or asset counts synced from integrations. It also supports automated price increases and flexible billing schedules.
• How it handles Projects: Features comprehensive project management modules with complex billing plans (prepaid blocks, fixed fees, or time-and-materials) that tie directly into resource utilization and ticketing.
• Why it’s a top pick: The interface is modern, licensing is straightforward, and it bridges the gap between service desk tickets, recurring agreements, and project milestones without feeling clunky.

2. ConnectWise PSA (Formerly Manage) (The Enterprise Heavyweight)

ConnectWise is a deeply entrenched industry standard for IT solution providers and MSPs.

• How it handles Recurring Revenue: Uses Agreements , which act as a master umbrella over a client. Agreements govern recurring billing, prepaid hour blocks, and automated monthly invoicing while mapping seamlessly against recurring service tickets.
• How it handles Projects: Offers a dedicated project module that handles phases, work breakdown structures, milestones, and specific project-based invoicing (progress billing or completion billing).
• Why it’s a top pick: It is immensely powerful and handles massive scale, though it comes with a notoriously steep learning curve and heavier administrative overhead to configure correctly.

3. Kaseya Autotask PSA (The Direct Competitor to ConnectWise)

Autotask is tightly integrated with the Kaseya/Datto ecosystem and serves a similar enterprise-tier MSP audience.

• How it handles Recurring Revenue: Utilizes Service Contracts and recurring billing profiles to automate predictable monthly charges, add-on bundles, and block-hour roll-overs.
• How it handles Projects: Strong project tracking with real-time budget-versus-actual analysis, profit-margin tracking per project, and phase-level billing rules.
• Why it’s a top pick: Excellent live dashboards for seeing blended profitability (recurring vs. project work) in a single pane of glass, though user experiences and ecosystem lock-in preferences vary widely by team.

Key Evaluation Criteria for Your Hybrid Model

When choosing between them, look closely at these three operational workflows:

To help narrow down which platform fits best, tell me:

• Are you currently using a specific RMM, CRM, or accounting tool (like QuickBooks or Xero) that the PSA must deeply integrate with?
• Roughly how many team members will be logging time and managing projects?

If you mean an IT/MSP-style managed services business with a mix of:

• recurring managed-service contracts/subscriptions,
• time & materials or overage billing,
• fixed-fee projects,
• implementation/onboarding projects, and
• potentially hardware/software resale,

then I’d put HaloPSA, ConnectWise PSA, and Autotask at the top of the shortlist. Current 2026 comparisons consistently put those three ahead for businesses with meaningful contract and billing complexity.

My ranking

Why I'd lean HaloPSA

For your particular revenue model, I'd focus less on "does it have recurring billing?"—most serious PSAs do—and more on how elegantly it handles revenue that changes type.

You want a system where a customer can simultaneously have:

$5,000/month managed services agreement + $20,000 network implementation project + $175/hour out-of-scope work + recurring software licenses without creating separate administrative universes.

HaloPSA is particularly attractive because it combines contract/agreement billing, service desk, projects, time tracking, and highly configurable workflows. Current comparisons characterize it as the strongest option for growing MSPs that want substantial billing customization without the legacy complexity of the larger incumbents.

When I'd choose ConnectWise instead

I'd choose ConnectWise PSA if you're already fairly large or have substantial operational complexity—multiple service lines, complicated agreements, dispatch/resource planning, procurement, sophisticated reporting, and a large integration ecosystem.

Its project-management capabilities are also among the deepest of the MSP PSAs, including more substantial resource and portfolio management.

The downside is implementation/configuration complexity. You're effectively buying an operational platform, not just billing software.

When I'd choose Autotask

If you're already heavily invested in Datto/Kaseya, I'd give Autotask serious consideration. Its contract and recurring billing capabilities are mature, and its ecosystem integration can make the overall stack considerably cleaner.

One important distinction

If by "subscription revenue" you mean true SaaS-style subscription accounting—for example:

• annual subscriptions with monthly revenue recognition,
• deferred revenue,
• usage-based billing,
• upgrades/downgrades,
• proration,
• automated renewals,
• ASC 606 revenue recognition,
• multiple entities/currencies,

then I wouldn't make the PSA the financial system of record. In that situation, I'd look at PSA + ERP/accounting, such as NetSuite, Sage Intacct, or Dynamics, with the PSA managing service delivery and billing inputs. Current research specifically notes that ERP platforms are stronger for revenue recognition and broader financials, while MSP PSAs are stronger at agreement/SLA/RMM/service-delivery workflows.

So, absent more information, my recommendation is:

HaloPSA → best overall fit ConnectWise PSA → best for a larger/complex MSP Autotask → best if you're already in Kaseya/Datto

If you tell me roughly (1) annual revenue, (2) number of employees/technicians, (3) % recurring vs project revenue, (4) accounting system, and (5) RMM, I can narrow this down to a specific PSA recommendation and architecture rather than just a generic MSP shortlist.

without creating separate administrative universes.

HaloPSA is particularly attractive because it combines contract/agreement billing, service desk, projects, time tracking, and highly configurable workflows. Current comparisons characterize it as the strongest option for growing MSPs that want substantial billing customization without the legacy complexity of the larger incumbents.

When I'd choose ConnectWise instead

I'd choose ConnectWise PSA if you're already fairly large or have substantial operational complexity—multiple service lines, complicated agreements, dispatch/resource planning, procurement, sophisticated reporting, and a large integration ecosystem.

Its project-management capabilities are also among the deepest of the MSP PSAs, including more substantial resource and portfolio management.

The downside is implementation/configuration complexity. You're effectively buying an operational platform, not just billing software.

When I'd choose Autotask

If you're already heavily invested in Datto/Kaseya, I'd give Autotask serious consideration. Its contract and recurring billing capabilities are mature, and its ecosystem integration can make the overall stack considerably cleaner.

One important distinction

If by "subscription revenue" you mean true SaaS-style subscription accounting—for example:

In a managed services (MSP/IT) or hybrid managed services model, handling both predictable recurring subscription revenue (MRR/ARR like monthly retainer agreements, user-based device billing , or managed security services) and non-linear project-based revenue (milestone billings, T&M implementations, or one-off upgrades) requires a PSA with robust Agreement/Contract Management tied directly into a flexible Project Accounting and Ticketing engine.

The best PSAs for this dual requirement are categorized below by how they fit different operational models:

1. HaloPSA (The Modern Gold Standard for MSP/Hybrid)

HaloPSA has rapidly become a market favorite for managed service providers and hybrid IT agencies, heavily disrupting legacy players.

• Recurring Revenue Handling: It features a powerhouse recurring invoicing engine. You can tie recurring billing lines directly to dynamic counts (user counts, device/endpoint counts, or active subscriptions), automate periodic price adjustments, and cleanly manage service level agreements (SLAs) mapped to specific contracts.
• Project Revenue Handling: Halo includes a fully realized project management module alongside its service desk. You can easily manage project phases, milestone billing, and allocation of specialized work roles without breaking your recurring support workflows.
• Why it shines: The interface is modern, licensing is transparent, and it bridges the gap between IT service management (ITSM) ticketing and heavy-duty financial/contract scheduling better than older legacy architectures.

2. ConnectWise PSA (Formerly Manage) (The Enterprise/Legacy Heavyweight)

ConnectWise PSA is the entrenched industry veteran for MSPs.

• Recurring Revenue Handling: Deep "Agreements" functionality allows for complex recurring billing, scheduled additions, prepaid blocks of hours, and automated agreement invoicing.
• Project Revenue Handling: Strong project hierarchy features—allowing you to group multi-layered work roles, sub-tickets, budget tracking, and phase-based milestone or T&M billing under a single project umbrella.
• Where it falls short: The learning curve is steep, configuration is notoriously complex, and it typically requires multi-year commitments and an ecosystem of expensive add-ons to run smoothly. However, if you are an enterprise-scale operation already deeply integrated into the ConnectWise ecosystem (RMM, Automate, etc.), it handles the blended revenue math well.

3. Accelo (Best for Professional Services / Client Operations Blends)

If your managed services lean more heavily toward client retainer work, agency-style operations, or professional consulting blended with tech support, Accelo is explicitly built for this mix.

• Recurring Revenue Handling: Handles recurring retainers exceptionally well, tracking rollover hours, recurring automated periods, and periodic retainers alongside ad-hoc work.
• Project Revenue Handling: Accelo's core DNA is project profitability. It offers real-time tracking of budgets, time, and milestones, giving you an immediate view of whether your fixed-price projects or recurring retainers are actually profitable.
• Why it shines: It provides the absolute best single-pane-of-glass visibility into the entire client lifecycle from sales quote to retainer renewal and project completion, without feeling like a rigid IT-only helpdesk tool.

4. SuperOps or Syncro (Best All-in-One RMM + PSA for Leaner Teams)

If you are running a leaner managed services shop and want your PSA natively unified with your Remote Monitoring and Management (RMM) tool rather than buying standalone bloatware:

• SuperOps provides an AI-infused, modern unified platform that balances sleek project management workflows with solid contract and subscription billing capabilities.
• Syncro is fantastic for smaller to mid-sized MSPs needing straightforward recurring invoicing/contracts coupled with intuitive ticketing.

Summary Recommendation Matrix

• Choose HaloPSA if you want the most agile, modern, deeply capable platform specifically designed for hybrid IT and MSP billing complexity without legacy enterprise baggage.
• Choose Accelo if your services are high-touch, retainer-heavy, and require precise tracking of professional time and project profitability margins.
• Choose ConnectWise PSA only if you are already locked into their enterprise tool stack and have the dedicated admin overhead required to manage it.

To help narrow down the ideal platform, tell me:

• How many technicians/users need access to the system?
• Are you already using an RMM (Remote Monitoring & Management) tool that the PSA needs to integrate with?

For a managed services model handling both recurring subscriptions and project-based revenue, ConnectWise PSA, HaloPSA , and Accelo are the top choices depending on your specific operational focus.

Managing hybrid revenue streams requires a Professional Services Automation (PSA) tool that blends recurring contract/agreement billing with robust milestone or time-and-materials project tracking.

Top PSA Platforms for Hybrid Revenue

Key Features to Evaluate

• Contract & Subscription Engine: The platform must natively support recurring service agreements (per-user, per-device, or fixed retainer) alongside one-time project estimates.
• Unified Time & Ticket Tracking: Technicians should log hours against both ongoing maintenance tickets and distinct project phases within the same interface.
• Flexible Invoicing: Look for automated billing schedules that consolidate recurring monthly charges and completed project milestones onto a single clean client invoice.

If you'd like, let me know:

• Do you also need RMM (Remote Monitoring and Management) integration for IT infrastructure?
• What is your team size?
• Are you migrating from another tool?

If your managed-services business has both recurring subscription/MSP revenue and project-based revenue, I’d shortlist HaloPSA, ConnectWise PSA, and Autotask PSA. The best choice depends on how complex your contracts and projects are.

My ranking

1. HaloPSA — my first choice for your model

For an MSP where MRR/ARR contracts and projects are equally important, I'd look hardest at HaloPSA.

It has strong contract and billing capabilities alongside service desk, time tracking, project management, CRM, and reporting. Recent industry comparisons specifically put Halo in the top tier for billing depth and workflow control.

The important thing is that you can model the two revenue streams differently:

• Managed services: recurring agreements/subscriptions
• Overages: time/materials or other billable items
• Projects: fixed-fee, T&M, milestone, or similar project billing
• Labor: time tracked against either agreements or projects
• Profitability: compare recurring contract economics with project margins
• Renewals: maintain the recurring commercial relationship independently of individual projects

That's a much better fit than choosing a PSA that is essentially a sophisticated ticketing system with invoices bolted on.

2. ConnectWise PSA — best if you're operationally complex

If you're a larger MSP with sophisticated service agreements, multiple teams, substantial project volume, procurement, dispatching, and detailed profitability reporting, ConnectWise PSA is probably the most powerful option.

ConnectWise explicitly integrates project management with sales, service delivery, billing, and reporting, including project profitability and milestone billing.

I'd choose it over Halo if:

• You have a large/complex operation.
• You need very mature PSA workflows.
• Projects are a major part of revenue.
• You already use the ConnectWise ecosystem.
• You have someone internally who can own PSA administration.

The downside is complexity. You're buying a much bigger operating system, not simply a better billing tool.

3. Autotask — particularly attractive in the Kaseya/Datto ecosystem

Autotask PSA is another very strong option for recurring contracts plus projects. If you're already invested in Datto/Kaseya, the integration argument becomes much stronger. Current comparisons continue to rank Autotask alongside ConnectWise as one of the strongest mature MSP PSAs, particularly around contracts and billing.

I wouldn't choose it just because it's good at recurring revenue. I'd choose it if its broader ecosystem fits your business.

The key question I'd use to select the PSA

Don't ask vendors, "Can you handle recurring billing and projects?"

They all can.

Instead, give each vendor this exact scenario:

A client signs a 36-month managed-services agreement for $12,000/month. During the year, we sell them three separate projects: a $40,000 infrastructure project, a $15,000 migration project, and a $25,000 security project. Some labor is covered by the agreement, some is project-billable. We need to track MRR/ARR, project margin, utilization, contract profitability, deferred/unbilled revenue, renewals, and total customer profitability. Then have them demonstrate the entire lifecycle from quote → contract → project → time entry → invoice → accounting → profitability reporting.

That's where you'll see the real differences.

One distinction that matters enormously

If by "subscription revenue" you mean true SaaS-style subscriptions—annual prepaid contracts, monthly recurring revenue, upgrades/downgrades, proration, deferred revenue, revenue recognition, etc.—I'd be more cautious about making the PSA your financial system of record.

A PSA is excellent at operational billing. Your accounting/ERP platform may need to remain the authority for revenue recognition and the general ledger.

If instead you mean the typical MSP model—monthly managed-services agreements + one-off projects + T&M/overages—then HaloPSA, ConnectWise, and Autotask are all squarely in the right category.

My default recommendation without knowing anything else about your business: start with HaloPSA. It gives you the strongest combination of recurring-contract billing, project operations, customization, and modern usability without necessarily taking on the operational complexity of ConnectWise.

If you tell me (1) number of techs, (2) approximate % recurring vs project revenue, (3) accounting system, (4) RMM, and (5) whether projects are fixed-fee or T&M, I can narrow this to a Halo vs ConnectWise vs Autotask recommendation specifically for your business model.

For a Managed Services Provider (MSP) juggling a hybrid model, HaloPSA and ConnectWise PSA are the best industry-standard platforms for handling recurring subscription revenue alongside complex project-based revenue.

Generic project tools often fail here because they lack the contract engines needed to track recurring subscriptions, seat changes, and milestone billing simultaneously.

The Top PSA Platforms Compared

Deep Dive: Why These Tools Handle Hybrid Models Best

1. HaloPSA (The Modern Standard)

HaloPSA has rapidly gained market share because it fixes the "billing reconciliation nightmare" that plagues hybrid MSPs.

• Subscription Automation : It pulls live endpoint and user counts directly from distributors and Remote Monitoring and Management (RMM) platforms. Your recurring billing adjusts dynamically every month without manual auditing.
• Project Tracking : You can convert a sales quote directly into a structured project block. It handles advanced dependencies, resource utilization tracking, and splits project invoicing cleanly away from the client's monthly recurring flat fee.

2. ConnectWise PSA (The Enterprise Workhorse)

Formerly known as ConnectWise Manage, ConnectWise PSA is the most robust, highly configurable tool for complex organizational financial operations.

• Subscription Automation : It handles highly complex parent-child billing accounts, custom proration rules, and multi-tiered contract agreements natively.
• Project Tracking : It offers the deepest project accounting of any MSP-specific PSA. If you have multi-phase deployment projects with different billable engineering rates, ConnectWise handles the revenue recognition flawlessly.

3. Datto Autotask PSA (The Ecosystem Choice)

Owned by Kaseya, Autotask PSA is built for high-volume ticket and contract management.

• Subscription Automation : It features a mature contract engine that links to your asset tracking. If a client adds an asset, the subscription price increments automatically.
• Project Tracking : While its user interface feels a bit dated compared to HaloPSA, it provides rock-solid milestone and time-and-materials billing directly linked to your service delivery dispatch desk.

What to Avoid

Do not use unified RMM/PSA tools like Syncro or Atera if your project revenue is highly complex. While those tools are fantastic for smaller MSPs doing flat-fee billing, they lack the advanced project accounting, milestone dependency workflows, and granular revenue separation needed for complex professional services delivery.

To give you the most accurate recommendation, could you tell me:

• What RMM platform and accounting software (like QuickBooks or Xero) do you currently use?
• What is the roughly estimated headcount of your technician and project management team?
• Do your projects involve complex milestone billing or are they mostly standard Time and Materials (T&M)?

If you’re a managed services business with meaningful recurring revenue plus project-based work, I’d put Datto Autotask PSA at the top of the shortlist—especially if the PSA needs to be the operational system connecting contracts, service delivery, projects, time, and billing.

My ranking

Why Autotask stands out for your model: it explicitly separates several revenue mechanisms. Its contracts support Time & Materials, Fixed Price, Block Hours, Retainer, and Recurring Service, while recurring services can be billed as units on a recurring contract.

That maps nicely to something like:

• Managed services: $X/user/month or $X/device/month
• Recurring add-ons: backup, security, licensing, monitoring, etc.
• Projects: migrations, implementations, upgrades, onboarding
• T&M: work outside the managed-services agreement
• Retainers/block hours: customers with hybrid arrangements

Autotask can also report revenue by contract type and track recurring revenue as a percentage of total revenue, which is useful if you're actively managing the business around MRR/ARR versus project revenue.

Autotask vs. ConnectWise

This is probably the real decision I'd investigate.

Choose Autotask if:

• recurring contract billing is a major priority;
• you bill by users/devices/services and need adjustments as quantities change;
• you want strong contract → ticket → time → invoice relationships;
• you're already using, or considering, Datto/Kaseya tooling.

Choose ConnectWise PSA if:

• you're already heavily invested in the ConnectWise ecosystem;
• you have a larger/more complex operation;
• ecosystem breadth and integrations matter more than simplicity.

Current industry comparisons still put Autotask and ConnectWise at the top for established MSPs, with Autotask particularly strong around contract billing.

One important distinction

If by "managed services" you mean IT/MSP-style managed services, I'd strongly favor Autotask, ConnectWise, or HaloPSA over a generic PSA.

If you mean something more like managed business services/consulting—for example, clients pay a monthly retainer for a team, but you also run substantial implementation projects—then I'd take a much harder look at Scoro. It combines retainers, project management, resource planning, time tracking, invoicing, and financial reporting in one platform.

Bottom line: For an MSP where recurring subscription revenue is the economic engine and projects are the second revenue stream, Autotask is my first evaluation. I'd compare it head-to-head with ConnectWise PSA and HaloPSA rather than looking at generic PSA products.

If you tell me roughly (1) number of employees/technicians, (2) % recurring vs project revenue, (3) whether you use an RMM, and (4) QuickBooks/Xero/NetSuite/etc., I can narrow this to the best 2–3 options and explain the tradeoffs.

When running a hybrid model that blends monthly recurring revenue (MRR) from managed services with variable, milestone-, or time-and-materials-based project revenue, you need a Professional Services Automation (PSA) tool that treats recurring billing contracts and project tracking as equal citizens.

The market divides nicely depending on whether you are an IT-focused Managed Service Provider (MSP) or a general professional services/consulting firm.

Top PSA Platforms for Hybrid Managed & Project Models

• ConnectWise PSA (formerly Manage) is the long-standing heavy-weight standard for IT and tech-enabled MSPs. It excels at managing complex recurring agreements (block hours, per-user, or device-based billing) right alongside full-featured project management and time tracking. It has the largest integration ecosystem in the MSP space, but it comes with a steep learning curve, a heavier interface, and custom enterprise quoting.
• HaloPSA is widely considered the top modern alternative to legacy tools. It offers transparent pricing, an intuitive and fast user interface, and powerful contract management that handles recurring service agreements smoothly while keeping tight control over project workflows, time logging, and ticket-to-project conversions.
• Autotask PSA (Kaseya) is a robust cloud competitor to ConnectWise. It offers exceptional dashboarding, solid contract and recurring billing automation, and deep project profitability tracking—making it a favorite for teams already aligned with the Kaseya/Datto ecosystem.
• Accelo is ideal if your project and managed services model leans heavily toward client retainers, ongoing engineering, and professional services rather than pure infrastructure monitoring. It is built around a clean quote-to-cash engine that natively tracks monthly retainers, recurring work, and one-off project phases in a single unified view.
• SuperOps is a strong option for modern, lean teams. It natively blends a clean PSA (ticketing, project management, and recurring contract billing) with RMM capabilities, making it snappy to deploy if you want to avoid bloated legacy software.

Key Evaluation Criteria for Your Hybrid Model

When demoing these platforms, pressure-test them on these specific workflows:

1. Contract-to-Project Spillover: Can a technician seamlessly log time or escalate an ad-hoc request from a recurring monthly agreement over into a billable project phase when scope creep occurs?
2. Recurring Billing Flexibility: Does the platform automate recurring invoices (fixed-fee monthly retainers or metered/usage tiers) without requiring manual adjustments each billing cycle?
3. Blended Profitability Reporting: Can you pull a single report showing a client's total profitability, combining the margin on their monthly recurring subscription against the margin on their active project work?

To help narrow down the best fit, tell me:

• Are you managing IT/infrastructure infrastructure endpoints , or is this general business/consulting services?
• Roughly how many technical or project resources need access to the platform?

If your business is managed services + project work, I’d shortlist ConnectWise PSA, HaloPSA, and Autotask. My default recommendation would be ConnectWise PSA if recurring subscription revenue is a major part of the business and you want the PSA to be the operational system of record.

My ranking

Why I'd lean ConnectWise

The important distinction is that you don't just need a PSA that can invoice monthly. You need one that can maintain the relationship between:

subscription/contract → recurring revenue → service delivery → technician time → project work → project billing → client profitability.

ConnectWise PSA is particularly strong here. Its agreements support recurring billing and tracking contract utilization/profitability, while its project module handles project templates, milestones, time, expenses and project billing. It also supports subscription/usage billing and proration.

That makes it a good fit if, for example, a client looks like:

• $8,000/month managed services agreement
• $2,500/month software/cloud subscriptions
• $50,000 implementation project
• $175/hour out-of-scope consulting
• occasional fixed-fee projects

You can have those revenue streams coexist against the same customer and operational data rather than treating the business as either "subscription" or "projects."

Where I'd consider the alternatives

Autotask would be my second choice, particularly if you're heavily invested in the Datto/Kaseya ecosystem. It's a very mature MSP PSA and is strong around contracts, tickets, time, projects and billing. Community feedback in 2026 still frequently puts it alongside ConnectWise and Halo as the three major MSP PSA choices.

HaloPSA is the one I'd demo if user experience and configurability matter more than having the deepest legacy MSP ecosystem. It has a strong reputation among MSP operators, although implementation quality appears to make a big difference. Recent MSP discussions are notably polarized: some operators love its flexibility, while others report significant billing/configuration problems.

Accelo becomes interesting if by "managed services" you really mean recurring professional services/retainers rather than a conventional IT MSP. If your business is closer to "ongoing consulting + projects + retainers" than "help desk + RMM + contracts," I'd evaluate it seriously.

The bigger question I'd use to choose

I'd score each PSA against these six requirements, rather than starting with feature checklists:

1. Recurring revenue management — contracts, subscriptions, usage, minimums, overages, price increases.
2. Project accounting — fixed fee, T&M, milestones, retainers, budgets and WIP.
3. Unified time entry — one time entry should feed either the managed-service agreement or project billing.
4. Revenue/margin visibility — MRR, project margin, gross margin by client/service, utilization.
5. Quote-to-cash — sold subscription/project → provisioning/delivery → invoice without rekeying.
6. Accounting integration — clean handoff to your GL without turning the PSA into an accounting workaround.

If #1 and #2 are equally important, I'd start with ConnectWise PSA vs. Autotask vs. HaloPSA. ConnectWise explicitly positions its PSA as combining service delivery, contracts, billing and project management, with real-time client/team profitability reporting.

If you tell me roughly what your revenue mix is (e.g. 70% recurring / 30% projects), your accounting system (QuickBooks, NetSuite, Xero, etc.), and whether you're an IT MSP, cybersecurity provider, cloud/MSP, or broader professional services firm, I can narrow this to a top 2 and explain exactly how I'd structure the recurring + project revenue model in each.