O que a ferramenta verifica

Explore formatos de faturação eletrónica, identificadores, regras, prazos e ferramentas técnicas gratuitas para Portugal. UBL, SAF-T. As verificações técnicas não garantem aceitação por uma autoridade fiscal ou plataforma recetora.

developingP0Reviewed 2026-08-02

PT EN

Validation stack

How to validate CIUS-PT, SAF-T(PT), QR / ATCUD

1
File integrity and parsing
Preserve the source bytes and hash, then confirm the file is readable and well formed.
2
Syntax and profile
Apply the correct schema and profile identifiers for UBL, SAF-T.
3
Semantic business rules
Validate parties, dates, lines, taxes, totals, references and payment data.
4
National and network rules
CIUS-PT, SAF-T(PT), QR / ATCUD format or profile signals · Local tax/business identifier structure · Core invoice fields and arithmetic consistency
5
Identity, security and routing
Confirm participant capability, endpoint and security requirements.
6
Official outcome
Use Tax reporting, certified billing software or structured exchange depending on transaction. and preserve the response from CIUS-PT, SAF-T(PT), QR / ATCUD.

Applicable profile layers

EN 16931 · XML schema validity → EN 16931 Schematron rules → Code-list validation → National CIUS or extension rules Peppol BIS Billing · UBL schema → EN 16931 rules → Peppol BIS rules → Country-specific seller rules → Code lists CIUS-PT · EN 16931 syntax → CIUS-PT rules → ATCUD/series context → QR field composition

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