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Error

FX-SCH-A-000427: Use an allowed buyer tax registration scheme

In short

Error: fails the selected checks.

FX-SCH-A-000427 means a non-empty schemeID on your buyer's tax registration identifier is not allowed by the Basic WL profile. Correct ram:BuyerTradeParty/ram:SpecifiedTaxRegistration/ram:ID/@schemeID to the appropriate listed code; use VA for the buyer's VAT number (BT-48).

On this page

What it means

This Basic WL rule for Factur-X and ZUGFeRD compares a non-empty tax registration scheme with the profile's permitted codes. An empty value does not fail this test; the requirement for the attribute is checked separately.

Why it matters

The scheme code identifies the type of tax registration recorded.

How to fix it

Confirm what kind of registration number you have entered. For the buyer's VAT number (BT-48), put VA in schemeID on ram:BuyerTradeParty/ram:SpecifiedTaxRegistration/ram:ID. Do not substitute VAT or a country code for the scheme code. Export and recheck your file.

Once the file is corrected, check it again for free: Validate a ZUGFeRD invoice

Or fix the invoice in a form and download the corrected file, for 1 credit: Fix a rejected e-invoice Beta

The rule as published

Value of '@schemeID' is not allowed.

Where this rule applies

Rule set Version
Factur-X 1.09 BASIC WL 1.0.9-2
ZUGFeRD 2.5 BASIC WL 2.5.2
Rule text from phive-rules 4.6.4.

Check your file

Drop your e-invoice to see whether FX-SCH-A-000427 still fails, and which other rules do.

Updated 6 November 2026