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Invoice Late Fee Calculator

Invoice Late Fee

Calculate late payment penalties and interest charges on overdue invoices based on terms and days past due.

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Formula

Interest Charge = Invoice Amount x (Annual Rate / 365) x Days Overdue; Total Due = Invoice Amount + Interest Charge + Flat Fee

Frequently Asked Questions

What is a typical late fee for invoices?
Common late fees range from 1% to 2% per month (12-24% annually). Some businesses also charge a flat fee of $25 to $50 in addition to interest. Always check local regulations for maximum allowed rates.
When should late fees begin?
Late fees typically begin after the payment terms expire, such as Net 30 or Net 60. Clearly stating late fee terms on the original invoice is essential for enforceability.

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