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E-Invoicing to Portugal — PEPPOL & EN 16931

Reach Portuguese customers over the PEPPOL network from your own country, with NIF/NIPC checks. Businesses established in Portugal must use invoicing software certified by the Autoridade Tributária (AT). EncryptInvoice is not AT-certified, so businesses established in Portugal cannot use it.

Not certified

Portugal requires invoicing software certified by its tax authority, and EncryptInvoice is not certified there. Organizations established in Portugal cannot be created. Sending PEPPOL e-invoices to Portugal from another country is not affected. In Portugal, Decreto-Lei 28/2019 (article 4) obliges every business that uses invoicing software to use a program certified by the Autoridade Tributária; EncryptInvoice is not on its list of certified programs.

What EncryptInvoice does for invoices to Portugal

EN 16931 / UBL 2.1 Output

Standards-based UBL 2.1 e-invoices for Portuguese recipients on PEPPOL, from an issuer established outside Portugal.

NIF/NIPC Checks

NIF/NIPC format (9 digits) + VIES pre-checks. Users remain responsible for confirming Autoridade Tributária records.

Cross-Border PEPPOL

Send EN 16931 e-invoices over PEPPOL to businesses in 17 countries. EUR pricing throughout.

Portuguese E-Invoicing Rules

B2G e-invoicing to Portuguese public bodies is mandatory in the structured CIUS-PT (UBL 2.1) format via eSPap; small, medium and micro-enterprises fall under it from 1 January 2027. There is no general B2B e-invoicing clearance mandate. Separately, Decreto-Lei 28/2019 obliges every business established in Portugal that uses invoicing software to use a program certified by the Autoridade Tributária, with ATCUD, QR code and SAF-T (PT). EncryptInvoice is not an AT-certified program, so businesses established in Portugal cannot issue their invoices from it. What it does today:

  • PEPPOL delivery of EN 16931 / UBL 2.1 e-invoices to Portuguese recipients, from issuers established elsewhere
  • PEPPOL Access Point for cross-border European trade
  • NIF/NIPC format + VIES pre-checks (user confirms Autoridade Tributária records)
  • EncryptInvoice is not an AT-certified invoicing program: organizations established in Portugal cannot be created

Simple Pricing

Transparent pricing in EUR.

Unlimited features are subject to fair-use and technical rate limits. Archive-Vault — 10-year locked retention, nightly integrity verification, and exports with a manifest and an audit trail — is included on Scale; on every other plan, statutory archival remains your responsibility. You can export your data at any time while your account is open, on every plan — we commit to no retrieval period once it is closed.

Free

Free forever for basic invoicing

€0.00 /month
Invoice customers in Portugal from another country
  • Role & Permissions
  • Unlimited Invoices
  • Unlimited Quotes
  • Multi-Currency
  • PEPPOL Network Access
  • Receive E-Invoices
  • UBL 2.1 export
  • Embedded invoice XML
  • Email Support
  • Signed document records
  • PDF copy of each document
  • 10-year retention
  • Recurring Invoices
  • Archive Vault
  • Priority Support
  • Full Accountant Panel

Starter

Perfect for freelancers

€12.00 /month
Invoice customers in Portugal from another country
  • Role & Permissions
  • Unlimited Invoices
  • Unlimited Quotes
  • Multi-Currency
  • PEPPOL Network Access
  • Receive E-Invoices
  • UBL 2.1 export
  • Embedded invoice XML
  • Email Support
  • Signed document records
  • PDF copy of each document
  • 10-year retention
  • Recurring Invoices
  • Archive Vault
  • Priority Support
  • Full Accountant Panel
Most Popular

Professional

For growing businesses

€29.00 /month
Invoice customers in Portugal from another country
  • Role & Permissions
  • Unlimited Invoices
  • Unlimited Quotes
  • Multi-Currency
  • PEPPOL Network Access
  • Receive E-Invoices
  • UBL 2.1 export
  • Embedded invoice XML
  • Email Support
  • Signed document records
  • PDF copy of each document
  • 10-year retention
  • Recurring Invoices
  • Archive Vault
  • Priority Support
  • Full Accountant Panel

Scale

For large organizations

€99.00 /month
Invoice customers in Portugal from another country
  • Role & Permissions
  • Unlimited Invoices
  • Unlimited Quotes
  • Multi-Currency
  • PEPPOL Network Access
  • Receive E-Invoices
  • UBL 2.1 export
  • Embedded invoice XML
  • Email Support
  • Signed document records
  • PDF copy of each document
  • 10-year retention
  • Recurring Invoices
  • Archive Vault
  • Priority Support
  • Full Accountant Panel

Accounting Free

Basic accounting panel

€0.00 /month
Invoice customers in Portugal from another country
  • Role & Permissions
  • Unlimited Invoices
  • Unlimited Quotes
  • Multi-Currency
  • PEPPOL Network Access
  • Receive E-Invoices
  • UBL 2.1 export
  • Embedded invoice XML
  • Email Support
  • Signed document records
  • PDF copy of each document
  • 10-year retention
  • Recurring Invoices
  • Archive Vault
  • Priority Support
  • Full Accountant Panel

Frequently Asked Questions

Is e-invoicing mandatory in Portugal?

For B2G (invoicing public bodies), yes — suppliers must issue structured CIUS-PT (UBL 2.1) e-invoices via eSPap: large companies since 2021, small, medium and micro-enterprises from 1 January 2027. There is no general B2B e-invoicing clearance mandate. From 1 January 2027 a PDF invoice also needs a qualified electronic signature or seal to count as an electronic invoice. Please confirm your own obligations.

What about ATCUD, QR codes, SAF-T and certified software?

Portugal runs a separate fiscal-control regime: under Decreto-Lei 28/2019, any business established in Portugal that uses invoicing software must use a program certified by the Autoridade Tributária, and its invoices carry an ATCUD code and a QR code, with monthly SAF-T (PT) reporting. EncryptInvoice is not an AT-certified program, which is why organizations established in Portugal cannot be created. If your business is established in another country, you can still send PEPPOL e-invoices to Portuguese customers.

How does NIF/NIPC validation work?

We run NIF/NIPC format checks (9 digits) and EU VIES pre-checks to flag issues before you send. Please confirm official Autoridade Tributária records for final accuracy.

Can I invoice clients in other EU countries?

Yes! Through PEPPOL, you can send e-invoices to 17 countries. Cross-border format conversion is handled automatically.

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