Calculate a late fee on an overdue invoice by flat amount or monthly percentage, with the grace-period math laid out.
Free to use with no account. When you want to send the result by text, take a card payment, or keep a record of every job, the same numbers carry straight into Glo Invoice.
How a late fee is calculated. Either a flat amount per overdue invoice or a monthly percentage of the unpaid balance, applied after any grace period stated in your terms.
Worked example. A $2,000 invoice at 1.5% per month, 30 days past due, is a $30 fee. Left 90 days it is roughly $90 — enough to matter, not enough to fund your business.
It only works if it was written down first. A fee the customer never agreed to is hard to collect and easy to dispute. Put the rate, the grace period, and the due date on the estimate and the invoice.
Legal limits. States cap allowable interest on commercial and consumer debts, and some restrict fees on residential work. Check your state's limit — or ask your attorney — before you set a rate.
Frequently asked questions
What is a normal late fee?
1–1.5% per month, or a modest flat fee, is common in the trades. Higher rates invite disputes and may exceed your state's cap.
Can I charge a late fee if it isn't on the invoice?
Generally no. The terms have to be agreed before the work or stated on the invoice the customer accepted.
Does a late fee actually get me paid?
The deadline does more work than the fee. Consistent reminders at 7, 14, and 21 days past due recover more than penalties.
