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). Kworia is not AT-certified, so businesses established in Portugal cannot use it.
Local certification required
Portugal requires invoicing software certified by its tax authority, and Kworia 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; Kworia is not on its list of certified programs.
What Kworia 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: large companies have had to e-invoice Portuguese public bodies since 2021, and small, medium and micro-enterprises must from 1 January 2027, unless the transitional period is extended again. Plain PDF invoices are accepted under a yearly extension, which may not be renewed; without it, a PDF needs a qualified electronic signature or seal (or EDI). 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). Kworia 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
- Cross-border European PEPPOL e-invoicing via our certified access-point partner
- NIF/NIPC format + VIES pre-checks (user confirms Autoridade Tributária records)
- Kworia 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
- 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
- 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
Professional
For growing businesses
- 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
- 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
- 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: large companies have had to since 2021, and small, medium and micro-enterprises must from 1 January 2027, unless the transitional period is extended again. Plain PDF invoices are accepted under a yearly extension, which may not be renewed; without it, a PDF needs a qualified electronic signature or seal (or EDI). 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. Kworia 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.