Timesheet invoice calculator
Minutes are where billable time leaks. This adds your entries properly, applies your rounding rule to the total (not per entry), and hands you the number for the invoice.
What the ledger says
Invoice amount$517.5
- Hours billed
- 5.75 hours
- Exact hours worked
- 5.75 hours
Estimate, not advice
The formula
Each entry = hours + minutes ÷ 60. Total is rounded UP to your increment once, at the end. Amount = billed hours × rate. Rounding the total is fair; rounding each entry inflates quietly.
What this ignores
Different rates per task (split them into separate invoices or lines), overtime multipliers, and expense lines. Send the detailed entries with the invoice; itemized time gets questioned less, not more.
Field notes
- Should I bill exact minutes or round?
- Round the total to 15 minutes, upward, and say so in your terms. Exact-minute invoices look precise but invite line-item audits; hour-rounding per entry overbills visibly. Total-level quarter-hour rounding is the industry-standard middle.
- Do clients get to see the timesheet?
- Offer it by default as an attachment. Transparency converts "why 14 hours?" conversations into silence. The freelancers who hide time detail get MORE pushback, not less.
- What counts as billable time on a timesheet?
- Everything the project consumed: calls, emails about the project, revisions, research. If the project caused the time, the project pays for it. What is not billable is your general admin and selling, which your rate already prices in.