Late fee calculator for freelancers.
Calculate exactly what to charge on an overdue invoice — flat fee, monthly interest, or daily interest. Most freelance contracts use 1.5% per month.
Late fee
$17.50
Total to invoice
$2,517.50
How to charge late fees fairly
Most freelance contracts in the US use a 1.5% per month late fee (18% APR), which is the maximum allowed in many states. Some use a flat $25–$50 fee instead. Whichever you choose, the rule is the same: it has to be stated in your contract or invoice terms before the work happens, or it isn't enforceable.
How to actually collect it
Sending a late-fee invoice is the easy part. Getting paid is harder. That's where automated reminder sequences help — a polite nudge 3 days before due, on the due date, and at +3, +7, +14 days after, sent in your voice. It's what NudgePay does, and it usually means you don't need to charge the late fee at all.
Stop calculating. Start collecting.
NudgePay sends polite reminders automatically so you rarely need a late fee.
Try NudgePay free