Late-payment interest calculator (Germany)
Statutory default interest under § 288 BGB, per base-rate period, plus the €40 flat fee.
A quick orientation, not tax or legal advice. Rules as of 2026; check your case with your tax adviser.
Invoices that do this for you
Blanqo writes compliant invoices with the right VAT, a payment QR code and reminders – free to start.
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