How Freelancers Can Track Billable Hours and Send Better Timesheets

1) Track billable work by client and project

Create a separate project for each client or engagement so your invoice range can be filtered cleanly later. When you start work, run the timer immediately and add a description before switching tasks. That one habit solves most billing disputes because you are no longer reconstructing the day from memory at the end of the week.

• Billable: client meetings, implementation, revisions, QA, reporting tied to client work.
• Non-billable: internal admin, sales calls, proposal writing, bookkeeping, learning time.
• Useful rule: if the task would not appear on an invoice line, do not mix it into a billable entry.

2) A worked example: from tracked session to invoice total

Suppose you worked for Client A on July 7 from 09:14 to 12:06 and from 13:02 to 17:40, with short breaks excluded. The total tracked billable work for the day is 7h 38m. Your contract says you invoice in quarter-hour increments at €120 per hour. Teetrack shows the actual duration first, then you apply your agreed rounding rule for billing.

• Actual tracked time: 7h 38m.
• Decimal hours before rounding: 7.63 hours.
• Invoice rule: round to the nearest quarter hour.
• Rounded billable time: 7.75 hours.
• Invoice math: 7.75 × €120 = €930.

This is the kind of example clients understand immediately. They can see the actual work log, the agreed rounding policy, and the final amount. What creates friction is not rounding itself, but hidden rounding.

3) Better descriptions increase client trust

A timesheet line like "work" or "fixes" may be accurate to you, but it looks vague to a client who is deciding whether to approve €930. Good descriptions do not need to be long. They need to answer what was done and where the effort went.

• Before: "Website updates".
• After: "Updated pricing page layout, fixed mobile spacing bug, and tested checkout banner on Safari".
• Before: "Meeting".
• After: "Weekly planning call: reviewed launch checklist, assigned revisions, confirmed delivery dates".

Clear descriptions reduce back-and-forth, especially when a client forwards your invoice to someone in finance who was not in the project conversations. The timesheet should make sense without your verbal explanation.

4) What the PDF timesheet should show

Before sending the invoice, filter the correct client and billing period in Summary, then generate the PDF timesheet. The output is useful because it turns your raw entries into a document a client can review quickly. Pay attention to these fields before exporting:

• Date: confirms when the work happened inside the billing period.
• Project: separates work if a client has multiple retainers or streams.
• Description: gives the human explanation for each line item.
• Start and end time: useful when clients expect detailed support logs.
• Duration: shows the basis for the billed hours.
• Total hours: gives finance the number that should match the invoice calculation.

5) How to handle non-billable internal time

Freelancers often lose margin by hiding admin time inside client work. Keep it separate instead. If you spent 35 minutes preparing your own bookkeeping, that is not the same as 35 minutes revising Client A's landing page. Track internal time in a separate non-billable project or leave it out of the invoice filter entirely.

Example: your week shows 24h 10m billable and 3h 25m non-billable. That split matters. It tells you whether the client work is profitable, and it prevents awkward invoices padded with tasks the client never agreed to pay for. Good time tracking is not just about charging more. It is about charging only for what you can defend clearly.

6) A simple monthly billing routine

At the end of the month, review each client separately, clean up vague descriptions, confirm your rounding policy, and export one PDF timesheet per invoice. That routine takes less time than rebuilding hours from notes, and it makes your invoices easier to approve. The combination of exact tracking, readable descriptions, and separated non-billable time is what makes a freelancer timesheet look professional.