errorISPEPPOL_BIS

IS-R-009:Icelandic invoices with EINDAGI (final due date) must also have a regular due date (BT-9). The due date is required when

Icelandic invoices with EINDAGI (final due date) must also have a regular due date (BT-9). The due date is required when EINDAGI is present.

We can help you fix this

NEEDS INPUT

Requires user input: Due date (BT-9). User must provide the invoice due date when EINDAGI is present.

Simple form - we handle the XML for you
Upload and Answer Questions

Why This Error Matters

Invoice will be rejected by Icelandic validation. Due date is required when EINDAGI is specified.

Common Causes

  • EINDAGI provided but due date missing
  • Due date field not populated
  • Supporting document added without main due date
  • ERP does not link EINDAGI to due date requirement
  • Manual addition of EINDAGI without due date

Frequently Asked Questions

Icelandic invoices with EINDAGI (final due date) must also have a regular due date (BT-9). The due date is required when EINDAGI is present.
Icelandic invoices with EINDAGI (final due date) must also have a regular due date (BT-9). The due date is required when EINDAGI is present. You can also use Invoice Navigator's automatic Fixer tool to correct this instantly.
Yes, IS-R-009 is a critical error that will cause invoice rejection. It must be fixed before submission to ensure your invoice is accepted.
Many instances of IS-R-009 can be automatically corrected using Invoice Navigator's Fixer tool. Upload your invoice and the tool will identify and fix common issues.

Last updated: 18 January 2026

Share this guide: