How to calculate a freelance rate using billable hours

Your working day is not your billing capacity. Administration, learning, finding clients and rest take time that may never appear on an invoice. A sustainable rate starts with a realistic calendar and distinguishes personal income, business costs and manually entered reserves.

Build the billable calendar

The model starts with 52 weeks, subtracting holidays and leave divided by working days per week. Effective weeks × weekly billable hours × occupancy gives billable capacity. Billable hours cannot exceed worked hours. Occupancy describes how much of that capacity you sell; it is not a tax or a productivity deduction to apply twice.

From desired income to revenue

Required revenue = (income target + business costs) / (1 − tax reserve − margin). Percentages are fractions of revenue, not taxable profit, and their sum must be below 100%. The hourly rate divides revenue by billable hours. Do not add costs again if they are already included in the numerator.

Manual reserves, not universal taxes

The example’s tax reserve is a cash-planning assumption, not a valid tax rate for every freelancer or country. Taxes, social contributions and VAT treatment require local inputs and professional review when appropriate. The margin reserve does not guarantee profit either. Change occupancy while keeping costs and income targets fixed to see how the required rate changes.

Use the rate in a project quote

The indicative project amount multiplies rate by estimated hours. It does not automatically include uncertain scope, revisions, licences, travel or bad debts. Define deliverables and exclusions before comparing with the market. With zero billable hours, no finite rate produces the target income; do not turn that situation into a promised minimum price.

Hypothetical example, not a forecast

The amounts are invented examples. They are not current prices or personalised recommendations.

Example inputs

Approximate results

A common question

Does a forty-hour week mean forty billable hours?

No. Enter only hours you can sell and apply realistic occupancy. Keep non-billable work separate.

Try these inputs and compare different assumptions in the calculator.