errorPOLKSeF

KSEF-002:Invoice date too old for KSeF

Invoice issue date cannot be more than 30 days before KSeF submission date. Older invoices will be rejected by the system.

Fix this in your source system

MANUAL

KSeF rejects invoices with issue dates more than 30 days before submission. The invoice date cannot be changed retroactively. Issue a new invoice with a current date, or submit through alternative channels if KSeF deadline has passed.

See the step-by-step instructions below to fix this error manually.

How to Fix It

Common Causes

  • Invoice created but not submitted in time
  • Backlog of invoices
  • System date misconfiguration

Frequently Asked Questions

Invoice issue date cannot be more than 30 days before KSeF submission date. Older invoices will be rejected by the system.
Submit invoices within the 30-day window. You can also use Invoice Navigator's automatic Fixer tool to correct this instantly.
Yes, KSEF-002 is a critical error that will cause invoice rejection. It must be fixed before submission to ensure your invoice is accepted by the recipient's system.
Many instances of KSEF-002 can be automatically corrected using Invoice Navigator's Fixer tool. Upload your invoice and the tool will identify and fix common issues, including invoice date too old for ksef.

Last updated: 19 January 2026

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