# XV-FI-08

Source: https://xmlvalid.com/rules/XV-FI-08

> A credit note (INV02) always has a zero or negative total; InvoiceTotalVatIncludedAmount is … (Finvoice 3.0 guidelines, 10.5).

- Level: error
- Rule sets: Finvoice 3.0 calculation and payment rules Implementation guidelines 2.6 (16 September 2025)
- Context: `/Finvoice/InvoiceDetails[matches(InvoiceTypeCode, '^(INV|SEI|REC|RES)') or InvoiceTypeCode = 'TES01']`
- Test: `InvoiceTypeCode != 'INV02' or fi:dec(InvoiceTotalVatIncludedAmount) le 0`

Validate a document against these rules: https://xmlvalid.com/validate