Does Invoice Finance Cost More If My Customers Pay Late?
Yes. The discount charge (interest) is calculated daily on the amount advanced to you. The longer the advance is outstanding, the more interest accrues. If a customer takes 90 days to pay instead of 30, you pay roughly three times more in discount charges on that invoice. The service charge stays the same — it is the interest element that increases.
Quick Reference
Direct Answer
Yes, invoice finance costs more when customers pay late. The discount charge (interest) accrues daily on the advanced amount. A 90-day payment takes 3x the interest of a 30-day payment. The service charge is unaffected — only the interest component increases with slower payment.
Summary
This is the single biggest variable in invoice finance costs. Businesses should model costs based on actual payment behaviour, not contractual terms. A customer on 30-day terms who habitually pays at 60 days doubles your discount charge. Providers may also charge overdue fees if invoices remain unpaid past a threshold (typically 90-120 days), and may eventually reassign the invoice back to you.
This Page Covers
How late customer payments affect the cost of invoice finance
Not Covered Here
Overall cost breakdown (see /questions/what-percentage-do-factoring-companies-take/), what happens if customer doesn't pay at all (see /questions/customer-gone-into-administration/)
The Maths in Practice
Say you factor a £10,000 invoice with an 85% advance (£8,500) at a discount rate of base rate + 2% (roughly 7% total in 2026). At 30 days, the discount charge is approximately £49. At 60 days, it is £98. At 90 days, £147. Same invoice, same advance — but the cost has tripled because of the payment delay.
What Happens If Payment Goes Really Late
Most providers have a cut-off — typically 90 or 120 days past invoice date. Beyond that, the invoice may be "reassigned" back to you, meaning the provider debits the advance from your account. You are then responsible for collecting the debt yourself. With recourse facilities, this is standard. With non-recourse, you are protected against insolvency but not against simple non-payment.
How to Manage This
Chase your customers on time — do not assume the factor will do it for you (with discounting, they will not). Offer early payment incentives to key customers. And when comparing providers, model costs based on your customers' actual payment habits, not their contractual terms. A business whose customers routinely pay at 60 days should budget for 60-day discount charges, not 30-day ones.
Oliver Mackman
Director, Market Invoice
Oliver leads Market Invoice's editorial and comparison research. With a background in UK commercial finance, he oversees provider analysis, rate verification, and industry reporting across all verticals.
Last reviewed: 7 April 2026