Banking & Payment Infrastructure for Portuguese Businesses

Why business banking is a separate problem

Many founders assume their personal Portuguese bank account is enough — it isn't. Portuguese tax law effectively requires LDAs to operate through a dedicated company account, share capital must be deposited there, and your Contabilista Certificado will need clean monthly statements that don't mix personal expenses. Sole traders are not legally required to have a separate account, but tax authorities increasingly expect it during audits. Plan to open a business account in the first 30 days after incorporation.

Traditional Portuguese banks

If you need a Portuguese IBAN, in-branch service, merchant acquiring, or eventual access to credit and overdrafts, a traditional bank is still the default. The major players for SMEs are Millennium BCP, BPI, Santander Portugal, Novobanco, and Caixa Geral de Depósitos. Expect 1–3 weeks from appointment to active account, document-heavy onboarding (incorporation certificate, RCBE filing, articles, ID for every beneficial owner, business plan for newer companies), and monthly fees of €10–€30 for a basic SME package. ActivoBank — owned by Millennium — does not offer business accounts despite being excellent for personal banking.

Fintech business accounts

European fintechs have made business banking dramatically easier — but check IBAN acceptance with your specific use case before going all-in. The main options for Portuguese businesses in 2026:

• Revolut Business — Lithuanian or Irish IBAN, multi-currency, expense cards, Xero/QuickBooks sync. Free plan up to limits, paid from €10/month.
• Wise Business — Belgian IBAN for EUR plus local account details in 9+ currencies. Excellent for invoicing US/UK clients in their currency. No monthly fee, pay per transfer.
• Qonto — French IBAN, strong invoicing, expense management, accountant access. Plans from €11/month, popular with French-speaking founders and EU SaaS startups.
• N26 Business — German IBAN, simple and clean app, free Standard tier. Fewer accounting integrations than Qonto.
• Caixa Engenharia / Banco CTT for SMEs — Portuguese IBAN alternatives if you want a PT account without the traditional-bank friction.

MB WAY and Multibanco for merchants

If you sell to Portuguese consumers — physical retail, local services, an Alojamento Local, a marketplace — you need to accept Multibanco references and MB WAY. Multibanco references let customers pay any invoice at any ATM or via their bank app by entering an entity + reference + amount; it's the dominant Portuguese B2B and B2C payment method. MB WAY is the consumer mobile payment layer on top. You can plug into both via SIBS (the network operator) directly, or — far easier — through Stripe, EuPago, IfthenPay, or Easypay, which expose Multibanco and MB WAY as payment methods alongside cards. Fees are typically €0.20–€0.50 per Multibanco reference and 1–2% for MB WAY.

Stripe and Portuguese tax compliance

Stripe operates in Portugal as a regulated payment institution and supports cards, SEPA, Multibanco, MB WAY, Apple Pay, Google Pay, and Klarna. The setup itself is straightforward — but Portuguese tax compliance adds two specific obligations. First, every invoice you issue must come from certified billing software with a unique sequential number and a digital signature; Stripe's built-in invoicing does not meet Portuguese certification, so you'll typically pair Stripe (for the actual payment) with a certified Portuguese invoicing tool like InvoiceXpress, Moloni, or Vendus that pulls in Stripe transactions and emits the legal invoice. Second, communicate every invoice to the tax authority via the e-Fatura system within the legal deadline (usually by the 5th of the following month) — your accountant or invoicing tool handles this if configured correctly.

Currency, FX, and getting paid by foreign clients

If you bill US, UK, or other non-EUR clients, the FX spread on your bank's incoming wire is often a bigger cost than any visible fee — Portuguese traditional banks typically take 1.5–3% on conversion. Practical setup: invoice in the client's local currency, receive into a Wise Business or Revolut Business multi-currency account at near-mid-market rates, then convert to EUR and sweep to your Portuguese business account on a schedule. For larger flows (>€20k/month), a dedicated FX provider like Ebury or CurrencyFair can save another 0.3–0.6% per transaction.

A pragmatic stack for a small Portuguese company

A setup that works well for most founders in 2026: traditional Portuguese bank (Millennium or BPI) as the company's primary IBAN for share capital, payroll, taxes, and Multibanco direct debits; a fintech (Wise Business or Revolut Business) for foreign-currency invoicing and team expense cards; Stripe (plus EuPago or IfthenPay if you need Multibanco at lower per-transaction fees) for online payments; and certified Portuguese invoicing software (InvoiceXpress or Moloni) tying it all together for your accountant. Total monthly stack cost: roughly €30–€80 for a sub-€500k turnover business.