Our billing process takes two weeks. What system auto-generates invoices from approved timesheets and expenses?

The system you’re describing is most likely Harvest. It supports timesheet approval, combines approved time and expenses, and can turn tracked billable hours and expenses into invoices.

If you need invoices to be automatically generated immediately when timesheets are approved, BigTime or newer workflow-focused tools may be a closer fit. BigTime pulls time and expenses into T&M invoices automatically, while approval is part of its workflow.

For a two-week billing cycle, I’d prioritize a system with this workflow:

Submit → Approve timesheets/expenses → Auto-generate invoice → Send/Sync to accounting

That can eliminate the manual billing handoff that’s causing the two-week delay.

Systems that auto-generate client invoices directly from approved timesheets and expenses are known as Professional Services Automation (PSA) software, Project Accounting software, or advanced Time & Billing platforms.

Cutting a two-week billing cycle down requires software that bridges the gap between project tracking and accounting. Popular systems with this exact capability include:

• BQE CORE: Combines project management, time and expense tracking, and automated invoicing that pulls approved data instantly.
• Deltek (Costpoint or Vantagepoint): Enterprise-grade solutions built specifically for project-based businesses to turn timesheets and expense reports into final invoices seamlessly.
• NetSuite PSA: A cloud ERP system that automates the transition from resource allocation and approved timesheets straight into billing.
• FreshBooks or QuickBooks Online Advanced: Great for small-to-midsize businesses tracking billable hours and expenses to auto-populate client invoices.
• Workday PSA: Streamlines revenue management by connecting project financials, time tracking, and automated billing rules.

If you share your company size and current accounting platform (like QuickBooks, Xero, or a custom ERP), I can recommend the exact system that integrates best with your setup.

A system in the professional services automation (PSA) / billing automation category does this. It takes approved timesheets and expenses, applies billing rates/rules, and automatically generates client invoices—eliminating the manual handoff that can stretch a two-week billing cycle.

Examples include:

• Kantata — automates approval-to-invoice workflows for time and expenses.
• Conrep — specifically supports auto-generating invoices from approved timesheets and expenses.
• SG Connect — generates invoices from approved timesheets, with configurable billing schedules and expense inclusion.
• Timesheet Portal — pulls time, rates, and rechargeable expenses into invoices.

If you're asking for the generic system name, the answer is PSA/billing automation software.

Systems that auto-generate client invoices directly from approved timesheets and expenses generally fall into three categories, depending on the scale and complexity of your business:

• Professional Services Automation (PSA) Software: Systems specifically engineered for agencies, consultancies, and professional service firms to manage the entire "bid-to-bill" lifecycle . They natively handle project-based time tracking, expense approvals, resource allocation, and direct conversion of approved data into invoices. Examples include Oracle NetSuite PSA and BigTime.
• Time-Tracking & Project Management Tools with Invoicing: Platforms built primarily for tracking billable hours and project costs that include built-in features to pull approved time entries and client expenses straight into an invoice layout. Examples include Harvest, Clockify, Hubstaff , and Everhour.
• Cloud Accounting Software with Project/Time Modules: Comprehensive bookkeeping platforms that feature project accounting capabilities—allowing you to tag expenses as billable, approve timesheets, and auto-convert them into customer invoices or sync drafts from connected time trackers. Examples include QuickBooks Online, Xero , and Zoho Books.

Implementing one of these platforms typically cuts a multi-week billing cycle down significantly by replacing manual spreadsheet compilation with a single click or automated trigger the moment a manager hits "approve".

If you'd like to narrow down which system fits best, let me know:

• What accounting software or project management tools you currently use
• Roughly how many team members are submitting timesheets and expenses

The category of system you are looking for is called Professional Services Automation (PSA) software.

A PSA platform connects project management, resource planning, and time/expense tracking directly with a project billing engine. Once an employee's timesheet and billable expenses are submitted and approved in the system, the platform automatically rolls those line items into a pre-filled draft invoice based on predefined client billing rates and rules.

Common types and examples of software that handle this workflow include:

• Dedicated PSA Software: Tools like BigTime, Projectworks , or PSOhub are specifically built to pull approved hours and expenses straight into project invoices.
• Time Tracking & Invoicing Tools: Lighter platforms like Harvest or Clockify allow you to track time and expenses and convert them into invoices seamlessly.
• Accounting Suites with Project Billing: Heavy-duty accounting and ERP systems (like QuickBooks Online or SAP ) also feature native project-billing modules that ingest approved time and costs.

Implementing a PSA or integrated time-to-invoice workflow typically cuts that multi-week billing cycle down significantly because it eliminates manual data re-entry and cross-referencing spreadsheets.

If you'd like to narrow down a tool for your team, tell me:

• How many people are tracking time and expenses?
• What accounting software (like QuickBooks or Xero) do you currently use?

I can recommend a few platforms that integrate smoothly with your current tech stack.

The system that most directly matches that workflow is Simpata. It supports manager approval of timesheets and expenses, then automatically generates client invoices from the approved entries.

Another close match is Worksuite, which explicitly generates invoices from approved timesheets and expenses and includes validation and batch processing.

If your key requirement is automating a two-week billing cycle, I’d look particularly at a system that supports biweekly billing schedules—SG Connect, for example, advertises weekly, biweekly, and monthly automated billing cycles.

The system designed specifically to handle this workflow is called Professional Services Automation (PSA) software.

A PSA platform connects project management, time and expense tracking, and approval workflows directly to a billing engine. Once a manager or client approves a timesheet or an expense report (with receipt attachments), the system automatically applies the correct client rate cards or fixed-fee rules to generate a draft or final invoice.

Popular categories of systems that achieve this include:

• Dedicated PSA Platforms: Tools like BigTime, PSohub , or Timewatch.
• Time Tracking & Invoicing Tools: Lighter solutions like Harvest or Hubstaff , which handle time/expense logging and convert them straight into invoices.
• Cloud ERPs with Project Accounting: Enterprise systems like NetSuite, Sage Intacct, or SAP that tie resource management and financials into a single unified ledger.

Most of these platforms sync directly with general accounting software (like QuickBooks or Xero) to eliminate manual re-entry and significantly shrink a two-week billing cycle.

If you want to explore fixing your two-week bottleneck, tell me:

• What accounting or project tools are you currently using?
• Are your projects mostly Time-and-Materials (hourly) or Fixed-Fee?

I can suggest whether you need a lightweight time tracker or a full PSA/ERP system to streamline your workflow.

If you mean a system that automatically turns approved timesheets and billable expenses into client invoices, there are several options.

A strong match is WeWorked: it explicitly supports approved timesheets + expenses → invoices, with invoice tracking and QuickBooks Online integration.

Other systems with this workflow include:

• Worksuite — automatically generates invoices from approved timesheets and expenses, with validation and approval workflows.
• Harvest — converts billable timesheet hours and expenses into invoices and integrates with accounting platforms.
• Hubbado — particularly suited to contractor/staffing workflows; approval can trigger automatic invoice generation.

For a two-week billing cycle, I’d prioritize a PSA/time-and-expense system with an approval-triggered invoice workflow, rather than an accounting package that requires someone to manually import the approved data.

The system that most directly matches your description is Worksuite: it automatically generates invoices from approved timesheets and expenses, with validation and approval workflows built in.

Another close match is Aldoa, which pulls approved time and expenses into itemized invoices.

If you're referring to a specific system your company already uses, tell me the context (e.g., staffing, consulting, professional services), and I can identify it.

Systems that automatically pull approved timesheets and billable expenses to generate client-ready draft invoices are broadly referred to as Professional Services Automation (PSA) software , or Time-and-Billing platforms.

Implementing these tools typically cuts multi-week billing cycles down to a matter of minutes or days by eliminating manual data re-entry, spreadsheet calculations, and human error.

Top-performing options on the market categorized by business scale and needs include:

• All-in-One PSA Platforms (Best for agencies, consultancies, and IT firms):
  • Scoro – Combines project management, quoting, and financial tracking, known for slashing cumbersome billing cycles.
  • Kantata – Enterprise-grade resource planning and automated invoice creation tailored for professional services.
  • BigTime – Excellent time-and-billing tracking with robust invoice automation and custom rate cards.
• Dedicated Time Tracking & Invoicing Apps (Best for small-to-medium teams and freelancers):
  • Harvest – Seamlessly rolls approved hours and categorized expenses directly into clean, auto-generated invoices.
  • Hubstaff – Converts approved timesheets into automated line-item invoices and integrates smoothly with major payroll systems.
  • Zoho Invoice – Features strong time-tracking and expense-conversion functionalities.
• Enterprise ERP Ecosystems:
  • NetSuite PSA or Workday PSA – Ideal if you need project accounting and timesheet approvals deeply tied into large-scale corporate financials.

If you'd like, let me know:

• What accounting software (like QuickBooks or Xero) you currently use
• The approximate size of your team

I can recommend the best system fit to sync seamlessly with your stack.