Hourly invoices need a little extra care because the client is paying for time and wants to see what they got. A clear breakdown builds trust and reduces questions.
Step by step
- Track time on each task with a timer or the timesheet calculator.
- Group time by task or day, with short descriptions.
- Multiply hours by your rate for each line. Use decimal hours: 90 minutes is 1.5 hours.
- Add any tax or expenses as separate lines.
- Show the total, due date and payment details.
- Create the invoice with the free invoice generator and send it.
Example lines
Website updates – 3.5 hours × [RATE] = [AMOUNT]
Client call and planning – 1.0 hour × [RATE] = [AMOUNT]
Blog page design – 4.25 hours × [RATE] = [AMOUNT]
Total hours: 8.75. Total due: [AMOUNT]
Tips
- Invoice regularly, for example weekly or monthly, so amounts stay small.
- Round time consistently, for example to the nearest 15 minutes.
- State how you handle minimum billing increments and travel time.
- Attach a time report if the client asks for one.
Convert minutes to decimal hours with the minutes to hours converter and see the full invoice example.
Frequently asked questions
How do I convert minutes to decimal hours?
Divide minutes by 60. 45 minutes is 0.75 hours.
How often should I invoice hourly work?
Weekly or monthly, or at milestones. Agree it upfront.
Do I need to show my time log?
It helps build trust and is often requested.
Related reading: Freelance Invoice Example · How to Track Freelance Income and Expenses
Requirements for invoices vary by country. Check the rules that apply to you.