📈 Free Tool

Late Fee Calculator

Calculate late fees and interest on overdue invoices. Supports flat fees, monthly percentage, and annual interest rates with simple or compound interest.

How to Use This Tool →

Invoice Details

$
$
Charged once per 30-day period overdue

Results

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Enter invoice details and click calculate
to see late fee breakdown.

Days Overdue 0
Interest / Fees Accrued $0.00
Total Amount Now Owed $0.00
Daily Accrual Rate $0.00/day

Balance Growth Breakdown

Period Days Fees Added Balance

Common Late Fee Rates by US State

Late fee regulations vary by state. Below is a reference of statutory maximum late fee rates for common states. Always consult your state's laws or a legal professional for the most current regulations.

State Max Late Fee Notes
California10% APRDefault interest rate on judgments; contract terms generally enforced if reasonable
Texas18% APRMaximum usury rate for commercial transactions; contracts can specify lower rates
New York16% APRCivil usury ceiling; criminal usury threshold at 25% APR
Florida18% APRMaximum interest rate; higher rates void unless exempt under statute
Illinois9% APRDefault rate under Illinois Interest Act; commercial agreements may set higher rates
Pennsylvania6% APRLegal rate of interest; contracts can specify up to 25% APR in some cases
Ohio8% APRStatutory interest rate; commercial contracts generally enforceable at agreed rate
Georgia18% APRMaximum simple interest rate unless specified by contract under $3,000 threshold
North Carolina8% APRGeneral legal rate; contractual rate up to 16% permitted
Michigan13% APRMaximum rate for most transactions; some commercial exceptions apply
Washington12% APRHighest lawful rate; judgment interest at 12% or contract rate
Colorado45% APRPermitted for commercial agreements; consumer transactions limited to 12% APR
Virginia12% APRGeneral legal rate; higher rates for certain commercial loans
Massachusetts20% APRCriminal usury limit; civil contracts generally enforceable at agreed rate

Late Fee Clause Generator

Generate copy-paste contract language for your invoices. Select a late fee type and rate below.

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