Hourly Invoice Template for Freelance Developers
In development, the part of an invoice that causes the most confusion is separating new features from bug fixes and support — a client wants to clearly see where the time went.
What it should include
- Repository or project — which product/repo the work corresponds to, if you handle several for the same client.
- Breakdown by type — feature development, bug fixes, support/maintenance, code review. Distinct categories, potentially distinct rates.
- Overtime or weekend work — if you applied a multiplier for off-hours work, show it as a separate line, not blended into the total.
- Sprint or period — if you work in sprints, indicate which one each block of hours belongs to.
- Link to tickets/issues (optional but recommended) — reference the ticket number so the client can cross-check the invoice against their own system.
Example
| Description | Hours | Rate | Total |
|---|---|---|---|
| Feature: payment integration (Sprint 14) | 12.0h | $60/h | $720.00 |
| Bug fixes (3 tickets) | 3.5h | $60/h | $210.00 |
| Off-hours support (weekend, 2x) | 2.0h | $120/h | $240.00 |
| Total | 17.5h | $1,170.00 |
Generating it automatically
If you categorize each entry as a feature, bug, or support item as you log it — and mark the multiplier when it applies — the invoice builds itself at the end of the period, with nothing to reconstruct by hand.
Try ProHours for free — free plan with 30 time entries a month, invoicing included.