# XV-PL-12

Source: https://xmlvalid.com/rules/XV-PL-12

> P_15 (…) must be the sum of the net amounts P_13_1 to P_13_11 and the tax P_14_1 to P_14_5 (…) (FA(3) information sheet, P_15).

- 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 = 'UPR' and empty(*[starts-with(local-name(), 'P_13_') or starts-with(local-name(), 'P_14_')])) or pl:near(pl:dec(fa:P_15), $sums, 0.01)`

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