AvoHourly Invoice: How to Invoice for Hours Worked (With Example)
How to invoice hourly work so the client pays without questions: how to describe the hours, rounding and minimums, attaching a timesheet, mixing hourly and fixed.
What an hourly invoice has to show
Hours, rate and what was done in those hours. The client is buying time they did not watch, so the invoice has to make the time visible: which days, how many hours, on what. An invoice that says “Labor, 14 h, $840” gets a phone call; one that says what the 14 hours were gets paid.
Three ways to lay out the hours
| Layout | Line example | Use when |
|---|---|---|
| One line per day | Mar 3, site prep and demo, 6.5 h × $55 | Short jobs, one or two people, client wants to see the days |
| One line per task | Rough-in plumbing, 11 h × $85 | Longer jobs where tasks matter more than dates |
| One line plus attached timesheet | Consulting, March 2026, 22.5 h × $120 (timesheet attached) | Retainers, professional services, many small entries |
Rates, rounding and minimums
- State the rate on the estimate and repeat it on every line. Different rates for different people (lead $75, helper $45) go on separate lines.
- Round to the quarter hour, or to six minutes for professional services. Say which on the estimate. Rounding to the hour is where clients feel cheated.
- Minimum charges and travel time are legitimate only if agreed in advance: “2-hour minimum per visit”, “travel billed at half rate beyond 20 miles”. On the invoice they are their own lines, not hidden in the hours.
- Overtime or after-hours rates: name them. “Sat Mar 14, after-hours rate 1.5×, 3 h × $82.50”.
Mixing hourly and fixed lines
- Labor by the hour, materials by the item, fixed fees as fixed lines. Keep the three visibly separate; a client who can see labor hours and material receipts rarely questions either.
- If part of the job was quoted fixed and part is hourly (“install at $900, troubleshooting at $85/h”), say so in the first line of the invoice so the mixed structure is expected.
Example hourly invoice
| Description | Qty × rate | Amount |
|---|---|---|
| Mar 3: remove old fixtures, cap lines, demo tile | 6.5 h × $85.00 | $552.50 |
| Mar 4: rough-in new shower valve and drain | 7.0 h × $85.00 | $595.00 |
| Mar 6: set fixtures, test, cleanup | 4.25 h × $85.00 | $361.25 |
| Shower valve kit and drain assembly (receipts attached) | 1 lot | $286.40 |
| Travel, 2 round trips beyond 20 mi | 2 × $25.00 | $50.00 |
| Total due | $1,845.15 |
Timesheets
- For more than a handful of entries, attach a timesheet: date, start, end, break, hours, task. Put the total on the invoice and reference the sheet.
- Keep the timesheet in the client's words: “call with vendor about permit” rather than “admin”. The description is what justifies the hour.
- If the client wants to approve hours before invoicing, send the timesheet first, invoice after approval, and write “hours approved Mar 7” on the invoice. It costs a day and removes every dispute.
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Questions
How do I write an invoice for hours worked?
One line per day or per task with the description, hours and rate (“Mar 3, demo and prep, 6.5 h × $85”), materials on separate lines, the total, and your payment terms. Attach a timesheet if there are many entries.
Should I round my hours on an invoice?
To the nearest quarter hour is standard in the trades, six-minute increments in professional services. State the rule on your estimate and apply it the same way every time.
Can I charge for travel time?
Yes if it was agreed before the job. Bill it as its own line at the agreed rate or flat fee; do not fold it into the work hours.
How detailed should hourly descriptions be?
Enough that the client recognizes the work: the day, the task, and anything unusual. “Troubleshoot breaker tripping, found damaged wire in attic, replaced 14 ft” is paid; “electrical work, 3 h” is questioned.
Do I need a timesheet to invoice hourly?
Not for a few entries that fit on the invoice. For retainers, long projects or clients who approve hours, a timesheet attached to the invoice is expected and protects you.