Best Agency Software With Time Tracking and Billing
This guide focuses on the specific connection between hours worked and money billed. It compares tools where tracked time flows into an invoice directly, rather than a time tracker and a billing tool that happen to be used by the same agency.
Find My Software StackWhy the time-to-invoice connection matters
When time tracking and invoicing are separate, someone has to export hours from one tool and re-enter them into another before a client sees a bill. Every manual step in that chain is a chance for an error, and a delay between finishing work and getting paid for it.
This page is narrower than a general comparison of time tracking or invoicing alone. It is specifically about tools where the two are connected, which matters most for agencies billing hourly, on retainer hour banks, or by tracked time against a fixed budget.
What to look for
Invoices built directly from tracked time
The core requirement: an invoice generated from logged hours, with rates already applied, rather than a manual transfer step.
Budget tracking alongside billing
Seeing budget burn as time is logged, not just at invoice time, helps catch an overrun before it becomes a billing dispute.
Support for your actual billing model
Hourly, fixed fee, or retainer hour banks each need slightly different handling. Confirm the tool supports the specific model you use.
Per-person and per-project billing rates
Different roles or clients often bill at different rates. The tool should apply the correct rate automatically rather than requiring manual adjustment on each invoice.
Software worth evaluating
Harvest
Best suited for: Agencies that want time tracking and invoicing built specifically around that connection
Strengths: Builds invoices directly from tracked time and expenses, supports online payment from the invoice, automatic overdue reminders, and recurring hour banks for retainers with real-time consumption tracking.
A limitation is: Lighter on broader project management than dedicated PM tools
Paymo
Best suited for: Independent professionals and small teams billing from tracked time and tasks
Strengths: Combines automatic time tracking, task management and invoicing so tracked hours feed directly into client bills, alongside online payments.
A limitation is: Lighter on deep resourcing and multi-entity financials than full PSA platforms
FreshBooks
Best suited for: Very small agencies and freelancers that want invoicing at the center
Strengths: Automatically adds tracked time and expenses to invoices, calculates taxes, and offers online payments with reminders so cash flow stays predictable.
A limitation is: Aimed at smaller businesses, so complex multi-project billing needs may outgrow it
Productive
Best suited for: Agencies that want time, budgets and invoicing tracked together in daily project use
Strengths: Tracks time against live budgets with automated overrun alerts, then builds invoices from that same tracked time, alongside profitability views.
A limitation is: Requires a minimum of 3 seats
Scoro
Best suited for: Agencies that want time, billing and financial forecasting connected across a mix of billing models
Strengths: Combines time and cost tracking with billing inside one system that also covers estimating and quote-to-cash forecasting.
A limitation is: Minimum 5 user seats and a longer onboarding process
Quick comparison
| Software | Best suited for | Key capabilities | Important limitation |
|---|---|---|---|
| Harvest | Agencies that want time tracking and invoicing built specifically around that connection | Time tracking, invoices from time, retainers | Lighter on broader project management than dedicated PM tools |
| Paymo | Independent professionals and small teams billing from tracked time and tasks | Time tracking, task management, invoicing | Lighter on deep resourcing and multi-entity financials than full PSA platforms |
| FreshBooks | Very small agencies and freelancers that want invoicing at the center | Invoicing, time tracking, payments, reminders | Aimed at smaller businesses, so complex multi-project billing needs may outgrow it |
| Productive | Agencies that want time, budgets and invoicing tracked together in daily project use | Time tracking, budgets, invoicing | Requires a minimum of 3 seats |
| Scoro | Agencies that want time, billing and financial forecasting connected across a mix of billing models | Time tracking, billing, forecasting | Minimum 5 user seats and a longer onboarding process |
Summaries reflect each vendor’s public website as reviewed in September 2026. Plans, limits and pricing change, so confirm current details with the vendor before deciding.
How to choose
Start from your billing model. Hourly and project-based billing work well with Harvest, Paymo or FreshBooks, which are built specifically around that time-to-invoice flow. If you also need resourcing and cross-project financial visibility, Productive or Scoro add that layer at the cost of a minimum seat count.
Confirm retainer handling specifically if that is how you bill. Not every time-and-billing tool tracks a recurring hour bank cleanly; check for that feature by name rather than assuming it from general invoicing support.
Common mistakes
Choosing a strong invoicing tool with weak time tracking, or vice versa
The whole point of this category is the connection between the two. A tool that is excellent at one and an afterthought at the other undermines that.
Not setting per-role or per-client rates correctly
Invoices built on the wrong rate produce disputes. Verify rate setup before relying on automated invoice generation.
Ignoring how retainers are handled
Recurring hour banks need specific support. A tool that only handles one-off project billing well may not track a retainer cleanly.
Frequently asked questions
Is this different from invoicing software generally?
Yes. Invoicing software covers billing broadly. This page is specifically about tools where tracked time flows directly into the invoice.
Do we need this if we bill fixed fees only?
Less critically. Fixed-fee billing does not depend on tracked hours the same way, though tracking time is still useful for understanding project profitability. See profitability software.
Can these tools handle retainers?
Several do, including recurring hour banks with consumption tracking. Confirm the specific feature rather than assuming from general billing support. See retainer management software.
Conclusion
Connecting time tracking directly to billing removes a manual step that causes delay and errors between finishing work and getting paid. Choose based on your billing model, and confirm retainer support specifically if you bill that way.
Connect time and billing in your stack
Answer a few questions about your agency to see time tracking and invoicing software that fit how you bill.
Build My Software Stack