Free Hourly Invoice Generator
| Date | Start | End | Break (min) | Rounding | Rate (USD/hr) | OT after (hrs) | OT x | Hours | Amount | |
|---|---|---|---|---|---|---|---|---|---|---|
| 7.50 | USD 487.50 |
Why generic invoice tools don't handle hourly billing well
Most free invoice generators — including the big names that rank for "hourly invoice generator" — use the same generic form as every other invoice: a description field, a quantity, and a rate. To bill by the hour you're expected to type the hours worked into the quantity box yourself, which means doing the start-time/end-time/break math on a separate notepad first and hoping you didn't make an arithmetic mistake.
None of the tools we looked at in this space had a real timesheet grid built into the invoice itself — actual date, start, and end columns with an automatic break deduction — and none of them handled overtime as a rate multiplier that kicks in after a daily threshold. One small competitor in this space has a hint of hourly framing in its page copy but the form underneath is the same generic item list as everyone else's, with no start/end fields at all.
How the timesheet grid works
Each row is one shift: pick a date, a start time, and an end time, then subtract your unpaid break in minutes. The tool converts that into decimal hours (so 7 hours 45 minutes becomes 7.75, not a fraction you have to convert by hand) and rounds to whichever billing increment you choose — 1 minute for exact time, or 6- or 15-minute increments if that's how your contract is written.
Set an overtime threshold in hours per day and a multiplier (1.5x is the default, but you can change it for double-time or a custom rate). Hours above the threshold on that row are billed at the multiplied rate automatically; hours at or below it are billed at your regular rate. Add as many rows as you worked days in the billing period — weekly, biweekly, or monthly — and the subtotal sums every row.
Excel export keeps the timesheet, not just the total
When you download the .xlsx file, every day you logged comes with it — date, start, end, break, and computed hours — plus a live formula that sums the rows into a subtotal and applies tax. That gives you a paper trail for each hourly invoice you send, useful if a client ever questions how many hours were billed in a given week.
If you invoice the same client on a retainer, our Bookkeeping for Small Business template (linked below) adds a running log across every invoice you've sent, not just this one.
Track every invoice you send
This tool generates one invoice at a time and nothing is stored on our servers. If you want a running record of every invoice, payment, and outstanding balance across all your clients, our Bookkeeping for Small Business template adds an invoice log, an accounts-receivable aging view, and a monthly P&L — built in Excel and Google Sheets, tested to the cent.
See the Bookkeeping template — $19Frequently asked questions
How does the overtime calculation work?
Set an 'OT after' threshold in hours (8 is the common daily default) and a multiplier (1.5x by default). On each row, hours up to the threshold are billed at your regular rate; hours beyond it are billed at rate × multiplier. This is calculated per row, so it matches a daily-overtime policy rather than a weekly one.
What billing increments can I round to?
Choose 1 minute (exact), 6 minutes (tenths of an hour), or 15 minutes (quarter-hours) per row. The tool rounds up to the nearest increment, which is the common convention for time-and-materials billing.
Can I bill a flat project fee alongside hourly rows?
This niche version is built around the timesheet grid specifically. For a mix of flat fees and hours, use the standard Invoice Generator, which accepts any description, quantity, and rate per line.
Does the Excel file keep my timesheet rows, or just the total?
It keeps every row — date, start, end, break, hours, and rate — plus a formula-driven subtotal and tax, so the exported file is a real record of the billing period, not just a lump sum.
Is there a limit to how many days I can log?
No hard limit — add as many rows as your billing period requires. For very long timesheets, keep in mind the PDF export will simply run to more than one printed page.