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Late payment interest calculator (EU)

Work out the statutory interest and €40 recovery fee a business client owes on a late invoice under the EU Late Payment Directive, with the official rate for each half-year.

LATE PAYMENT INTEREST CALCULATOR

What does a late client owe you?

Statutory interest and the €40 recovery fee for overdue business invoices in the EU, using the official rate for each half-year.

Wettelijke handelsrente: ECB rate + 8 points (art. 6:119a BW). Currently 10.4% a year.

For invoices to businesses and public bodies only. Interest on invoices to consumers follows national rules instead.

45 days late

EUR 52,82

on top of the EUR 1.000,00 invoice

PeriodDaysRateInterest
2026-08-20 – 2026-10-034510.4%EUR 12,82
Fixed recovery feeEUR 40,00

Simple interest on the amount owed. Rates updated 1 July 2026 (source). This is general guidance, not legal advice.

Payment reminder you can send

Stop chasing late payers by hand

Billebly sends polite reminders before the due date, on the day, and after it's overdue, each with a payment link so the client can settle in seconds.

  • Automatic before-due, due-today, and overdue reminders
  • A pay-now link in every invoice and reminder
  • See at a glance what's overdue and for how long

If a business client pays you late, EU law entitles you to statutory interest from the day after the due date, plus a fixed €40 recovery fee per late invoice, even if your contract never mentioned either. The calculator above works out both, splitting the overdue period at each half-year so every day uses the rate that was in force at the time.

How it works

The EU Late Payment Directive (2011/7/EU) (opens in a new tab) sets the minimum: the European Central Bank's main refinancing rate on 1 January or 1 July, plus at least 8 percentage points, fixed for that half-year. Several countries go further:

CountryStatutory rate for business invoices
NetherlandsECB rate + 8 points (wettelijke handelsrente)
BelgiumECB rate + 8 points, rounded up to the next half point
GermanyBase rate (Basiszinssatz) + 9 points
FranceECB rate + 10 points, unless your terms set another rate
Other EU countriesAt least ECB rate + 8 points

Interest is simple interest on the unpaid amount, counted per day over a 365-day year. The €40 is a flat amount per invoice that covers your recovery costs. If those costs are higher, you can usually claim reasonable additional costs too.

When the clock starts

  • With an agreed due date: from the day after it.
  • Without one: 30 days after your client received the invoice (or the goods or services, if later).
  • Payment terms: between businesses, terms over 60 days are only valid if expressly agreed and not grossly unfair to you. Public bodies must generally pay within 30 days.

Read more in should you charge a late fee? and late payment clause wording. If the client still doesn't pay, see what to do when a client isn't paying.

Prevent the late payment in the first place

Most invoices are paid late because they're easy to put off. Billebly sends polite reminders before the due date, on the day, and once it's overdue, each with a payment link so your client can pay in seconds. That works far better than a stern letter three weeks later.

Frequently asked questions

By the Billebly team · Last updated 3 October 2026

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