| Indirect tax | VAT (IVA), standard rate 23%Standard rate 23% on the mainland (22% in Madeira, 16% in the Azores) with reduced rates of 13% and 6% on the mainland; returns are monthly or quarterly. All invoices must be issued from software certified by the Tax Authority (AT). |
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| E-invoicing | Voluntary · AT-certified invoicing software, ATCUD + QR code, SAF-T (PT); CIUS-PT for B2GStructured B2B e-invoicing is not mandatory and PDF invoices are still accepted, but every invoice must come from AT-certified software and carry an ATCUD code and QR code. B2G e-invoicing in CIUS-PT format is mandatory for suppliers to public bodies. |
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| Data protection | GDPR plus Law 58/2019GDPR applies directly, supplemented by Law 58/2019 and supervised by the CNPD (Comissão Nacional de Proteção de Dados); B2B buyers expect an Art. 28 data processing agreement, a sub-processor list and, in practice, EU/EEA hosting or SCC-covered transfers. |
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| AI rules | The EU AI Act applies directly: prohibited AI practices have been banned since 2 Feb 2025, general-purpose AI model rules apply since 2 Aug 2025 and transparency duties (e.g. chatbot disclosure, AI-content labelling) since 2 Aug 2026, while the Digital Omnibus on AI (in force 27 Jul 2026) moved stand-alone high-risk (Annex III) obligations to 2 Dec 2027 and product-embedded high-risk (Annex I) obligations to 2 Aug 2028; Portugal has announced ANACOM (National Communications Authority) as its AI market-surveillance authority. |
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| Systems we migrate from or connect to | PHC, Cegid Primavera, Sage, Moloni, InvoiceXpress, TOConlineMasters, ledgers, stock and open balances move across and are reconciled before cutover. |
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| Payment rails for web apps and SaaS | MB WAY, Multibanco references, SEPA Direct Debit, SIBS, Stripe, easypay |
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| Also worth knowing | Invoice data is reported monthly to the AT via the SAF-T (PT) invoicing file. The qualified-electronic-signature requirement for PDF invoices and the SAF-T accounting file obligation have been postponed repeatedly (latest reports point to 2027 and 2028), so dates should be rechecked before launch. |
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