Freelance Late Payment Fee Calculator

When a freelance invoice is overdue, use the late-payment terms already agreed for that invoice rather than guessing at a penalty. The calculator applies simple interest to the outstanding amount and can include an agreed fixed fee.

Keep the calculation transparent

Enter the invoice amount, days overdue and agreed annual rate. The result shows calculated interest and the current total, making the assumptions visible.

Follow up professionally

Turn the result into a concise payment reminder and confirm the expected payment date. Contractual enforceability and statutory rights vary by jurisdiction, so this tool is commercial planning support rather than legal advice.