`FA3-P15-MISSING`

KSeF FA(3) · validation rule

KSeF FA(3)Error

The FA(3) invoice has no gross total (Fa/P_15, kwota należności ogółem). P_15 is mandatory for every invoice type; the sender must fill it with the total amount due including VAT.

Field: totals.gross (FA3 Fa/P_15)
Rule set: KSeF FA(3)
Rule-set version: KSeF FA(3) schema 1-0E XSD · in force since 2026-09-07
KSeF FA(2) schema 1-0E XSD · in force since 2026-09-07 · Rule-set changelog
Who has to fix it: The sender

This is a property of the file you received, so it cannot be corrected on your side without changing the document — ask the supplier to reissue it.

Check your own invoice

Drop the file that failed. We parse it, run the official rule sets against it and list every finding with a fix — 20 invoices per day, no key, nothing stored.

Open the live demo

Same explanation over the API: GET /v1/rules/FA3-P15-MISSING?lang=en