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Error

FX-SCH-A-000923: Add the scheme attribute to the payee's tax registration number

In short

Error: fails the selected checks.

FX-SCH-A-000923 means a payee tax registration number is missing its schemeID attribute. Add the attribute to ram:ID under ram:PayeeTradeParty/ram:SpecifiedTaxRegistration, using the scheme that matches the number.

On this page

What it means

Each ram:ID inside the payee's ram:SpecifiedTaxRegistration must have a schemeID attribute. This test checks whether the attribute exists, not whether its value is empty or correct.

Why it matters

The scheme identifies the type of tax registration number. The Extended profile requires this attribute on each payee tax registration ID.

How to fix it

Check how your invoicing software exports the payee's tax registration details. Ensure ram:PayeeTradeParty/ram:SpecifiedTaxRegistration/ram:ID has the appropriate schemeID attribute. If you cannot control the export, ask your software supplier to correct it. Export the corrected invoice and check it again.

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

Attribute '@schemeID' is required in this context.

Where this rule applies

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

Check your file

Drop your e-invoice to see whether FX-SCH-A-000923 still fails, and which other rules do.

Updated 6 November 2026