KSEF-005
Error Guide
🇵🇱 KSEF-005: VAT rate invalid for item type in Poland
ErrorMandatoryManual Fix
Polish VAT rates (23%, 8%, 5%, 0%, ZW-exempt, NP-not subject) must match item classification rules per Polish VAT law and PKWiU classification.
Quick Facts
Severity
Error (rejection)
Ruleset
KSeF
Mandate
B2B Mandatory
Fix Type
Manual
Why This Matters in Poland
Poland requires e-invoicing using KSeF XML format. Invoices with this error will be rejected. They cannot be processed for Poland compliance.
Invoice Navigator covers 134 KSeF FA(2) rules for Poland. Auto-remediates 78% of top rejection errors.
How to Fix KSEF-005
Poland E-Invoicing Requirements
Phase
Status
Scope
KSeF voluntary
Live (Jan 2022)
All VAT payers (opt-in)
B2B mandatory
Live (Feb 2026)
All Polish VAT payers
B2G
Live (Feb 2026)
Included in general KSeF mandate
Common Causes
- •Wrong rate for product category
- •Rate changed by new legislation
- •Misclassified goods/services
Fix KSEF-005 automatically
Upload your invoice and let Invoice Navigator auto-remediate this error.