# XV-PL-18

Source: https://xmlvalid.com/rules/XV-PL-18

> A final invoice (ROZ) must name the advance invoices it settles in FakturaZaliczkowa (VAT Act, art. 106f ust. 3; FA(3) information sheet, NrFaZaliczkowej).

- Level: error
- Rule sets: KSeF and FA(3) checks KSeF 2.0 invoice verification (9 April 2026), FA(3) information sheet (August 2026)
- Context: `/fa:Faktura/fa:Fa`
- Test: `$kind != 'ROZ' or fa:FakturaZaliczkowa`

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