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Late Payment Interest Calculator

The work is done. The invoice is overdue. Here's what they legally owe you on top — interest plus fixed compensation.

EXAMPLE NUMBERS
sample business shown
ECB reference rate + 8 percentage points (EU Late Payment Directive).
WHAT THEY OWE YOU ON TOP
Statutory interest (10.15% × 45 days)106.37
Fixed compensation€70
Growing by2.36/day
TOTAL OWED ON TOP OF THE INVOICE
176.37
Whether you charge it is your call — knowing it changes the conversation.
Late payers wrecking your cash? Get the free 12-month forecast →Staff Track chases invoices and shows who owes what — 21 days free
Statutory rates are editable defaults (2025/26) — confirm the current reference rate with your accountant before invoicing interest.
More free calculators for trades → · © 2026 Staff Track · staff-track.com