What it means
When a number is marked with scheme 0210, it must be a correctly formatted Italian tax number (Codice Fiscale). The test checks the format of the number. A Codice Fiscale can have 16 letters and digits or 11 digits. The check applies wherever the scheme is used: in the electronic address (BT-34 or BT-49), in a party identifier (such as BT-29 or BT-46) and in a company registration number (such as BT-30 or BT-47).
Why it matters
Peppol BIS Billing 3.0 requires values marked with scheme 0210 to use the Codice Fiscale format.
How to fix it
Copy the Codice Fiscale from the tax code card or certificate issued by the Agenzia delle Entrate, without spaces. Check for a mistyped letter or digit, and for the letter O typed instead of the digit 0. If the number is not a Codice Fiscale, change the scheme to the one that fits the number you hold.
Once the file is corrected, check it again for free: Validate a Peppol BIS invoice
Or fix the invoice in a form and download the corrected file, for 1 credit: Fix a rejected e-invoice
The rule as published
Read the rule on the publisher's site
Where this rule applies
| Rule set | Version |
|---|---|
| Peppol BIS Billing 3.0 (invoice) | 2026.5 |
| Peppol BIS Billing 3.0 (credit note) | 2026.5 |
Check your file
Drop your e-invoice to see whether PEPPOL-COMMON-R045 still fails, and which other rules do.
Related rules
- PEPPOL-COMMON-R046 An Italian tax number in an electronic address must be valid
- PEPPOL-COMMON-R047 An Italian VAT number (partita IVA) must be in the correct format
- PEPPOL-COMMON-R049 A Swedish organisation number must be 10 valid digits
- PEPPOL-COMMON-R050 An Australian ABN must be 11 digits with a valid check
- PEPPOL-COMMON-R052 A Danish chamber of commerce number must be 10 digits
- PEPPOL-COMMON-R053 A Danish SE number must be DK followed by 8 digits