Test files for every situation

Belgian B2B invoice with two VAT rates, a document-level discount and SEPA payment — passes every check.

The 21% VAT was computed at 20% and a line amount does not match quantity × price. Shows calculation rules with expected values.

Issue date, buyer name, buyer Peppol address, an item name, the IBAN and the buyer reference were left out.

Reverse-charge invoice from Germany to the Netherlands where the seller VAT number is one digit short and the buyer VAT number has a typo.

German software vendor invoicing a Dutch customer under reverse charge (category AE) with VATEX-EU-AE.

UBL CreditNote (type 381) referencing the original invoice through BillingReference.

UN/CEFACT CII XML as embedded in a Factur-X / ZUGFeRD PDF, with 20% and 5.5% VAT.

An unescaped ampersand and a missing closing tag — the parser points to the exact line.