What it means
The check applies to every CII ram element whose name ends in TradeTax, including tax blocks in the VAT breakdown (BG-23), on lines (BG-30), and on document-level discounts or charges. It passes when ram:TypeCode is absent or when at least one ram:TypeCode value is exactly VAT. It does not require the element to exist or check the VAT category or rate.
Why it matters
The tax type identifies VAT separately from its category and rate. Changing a code cannot turn another kind of tax into VAT.
How to fix it
Check what the affected tax block represents. For a VAT block, set ram:TypeCode inside ram:ApplicableTradeTax or ram:CategoryTradeTax to VAT in capital letters. If it represents another tax, review how that tax should be represented rather than changing its label to clear the error. Export the corrected file and recheck it.
Once the file is corrected, check it again for free: Validate an invoice against EN 16931
Or fix the invoice in a form and download the corrected file, for 1 credit: Fix a rejected e-invoice
The rule as published
TypeCode shall be 'VAT' Where this rule applies
| Rule set | Version |
|---|---|
| EN 16931 (CII) | 1.3.17 |
| XRechnung 3.0 (CII) | 3.0.2 |
| NLCIUS (CII) | 1.0.3.13 |
| France CTC (CII) | 1.4.0-04 |
Check your file
Drop your e-invoice to see whether CII-DT-037 still fails, and which other rules do.
Related rules
- CII-DT-038 Remove CalculatedRate from tax blocks
- CII-DT-039 Remove calculation sequence numbers from tax blocks
- CII-DT-040 Remove basis quantities from tax blocks
- CII-DT-041 Keep taxable amounts in the header settlement
- CII-DT-042 Do not use a unit basis amount in VAT information
- CII-DT-043 Do not use a line total basis amount in VAT information