Late Payment Interest Calculator — Overdue Invoices | DoUrWork
Calculate overdue payment interest fees and generate polite, legally compliant payment reminder notices for delinquent client invoices.
Loading interactive Late Payment Fee...
How to Use the Late Payment Fee
STEP 01
Enter Original Invoice Amount
Input total dollar amount overdue from the client.
STEP 02
Specify Days Overdue & Interest Rate
Enter days past due date and agreed annual percentage rate (e.g. 18% APR).
STEP 03
Copy Collection Notice
Select and copy polite, firm, or final notice payment reminder templates with updated totals.
Frequently Asked Questions
What is a typical late payment fee for freelance invoices?
Standard commercial contract late fees range from 1.5% to 2.0% per month (18% to 24% annual APR), or a one-time late fee of $25 to $50, provided late payment terms were agreed upon in the initial contract.