Best Time Tracking Software for Agencies That Need Accurate Client Billing
Agencies do not just need timers. They need billing-ready time data: client, project, task, person, billable status, approval state and a clean route into invoices. This list focuses on client billing rather than general productivity tracking. We favoured tools that help protect billable revenue, reduce double billing, separate non-billable work and turn approved time into invoices or invoice-ready reports. The ranked cards below follow AgencySoftware’s fixed index for time tracking tools. The buyer’s guide then explains when a project-management tool such as ClickUp or Teamwork can be the better fit for billing work tied to client delivery.
Reviewed by Marcus Taylor · how we score · Last updated 2026-06-30 · compare tools · affiliate disclosure
At a glance
| Tool | Index | Ease | From | Free | Best for |
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Choosing the right tool
Choose the billing workflow first. Harvest is the clearest fit if you want time tracking, expenses, invoices, recurring invoices, open-invoice tracking and QuickBooks Online or Xero sync in one flow. The catch is pricing language around additional invoices, projects, clients and tasks, so model your real client volume before buying.
Use Toggl Track if adoption matters more than native invoicing. It is strong for billable rates, project estimates, profitability reporting, fixed-fee projects and CSV or PDF exports. The limitation is that Toggl’s invoicing workflow sends billable data to an external invoicing tool rather than collecting client payments inside Toggl.
Use Teamwork when billing starts inside project delivery. It can create invoices from project time logs and expenses, mark invoiced time logs as invoiced, and calculate billable totals from rates. The billing tools are plan-gated, with client invoicing from logged time listed from Accelerate and timesheet approvals on higher plans.
Use ClickUp if the team already runs client work there. It supports billable and non-billable flags, timesheets, approvals, dashboard filters and exportable invoice-ready reports. It is less clean as a standalone billing product, so agencies needing invoices, payments or accounting reconciliation will still need another layer.
Check approval and lock controls before you scale. For a solo operator, a clean export may be enough. For a team, you need a manager to review time before it reaches the client, and you need invoiced time marked clearly so the same work is not billed twice.
Do the real cost maths. ClickUp is Free, then $7; Toggl Track is Free, then $9; Teamwork is Free, then $10.99; Harvest is Free, then $11. Those headline prices do not tell the full story if you hit plan gates, payment fees, usage billing or approval limits.
FAQ
What is the best time tracking software for client billing?
Harvest is the strongest fit if you want the shortest route from tracked time to client invoices. Toggl Track is better if you want fast team adoption and clean reports while invoicing elsewhere. Teamwork suits agencies that want billing tied to project delivery, while ClickUp makes sense if your work already lives in ClickUp.
Is Toggl Track or Harvest better for agency invoicing?
Choose Harvest if native invoicing, expenses, recurring invoices and accounting sync are central to the billing process. Choose Toggl Track if your priority is a low-friction timer, billable reporting and exports into another invoicing or accounting tool. Harvest is more direct for billing; Toggl is easier to roll out.
Can ClickUp replace dedicated time tracking software for client billing?
ClickUp can work if your agency already manages tasks, projects and delivery there. It supports time entries, billable flags, timesheets, approvals and invoice-ready reports. It does not replace a full billing stack for agencies that need native invoice creation, client payment collection or accounting reconciliation.
Do agencies need timesheet approvals for client billing?
Yes, once more than one person logs billable work. Approvals reduce padding, missed notes and accidental double billing before an invoice goes out. Check the plan gates carefully: Toggl puts approvals on Premium, Teamwork reserves approvals for higher plans, and Harvest lists timesheet approvals on Enterprise.
How are the tools in this ranking scored?
We score tools on ease of use, feature depth, how well they scale with client work, and price and value. The same underlying tool data powers our reviews, rankings and comparison pages.