Late Fee Calculator
% Annual
Invoice not overdue yet
Compounded Monthly
Original Amount:$1,000.00
Late Fee Accrued:+$0.00
Total Owed:$1,000.00


Calculate interest on overdue invoices instantly. Know exactly what you're owed.
Typically 1.5% to 2% per month or a flat $25-$50 fee depending on the contract.
Yes, as long as the late fee terms were clearly stated in your original contract or invoice terms.
Clear payment terms (e.g., Net 30) and automated reminders help prevent overdue bills.
Most clients will pay on time if they know a 1.5% interest rate applies after the due date. Including this clause in your contracts is the best way to ensure cash flow.
AddInvoices sends automatic payment reminders before invoices go overdue — so you spend less time calculating late fees.
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