Opening a Bank Account in Portugal: Complete Expat Guide 2026

By Iris Sousa

Category: Living in Portugal

Step-by-step guide to opening a Portuguese bank account as an expat, including required documents, online vs in-person options, costs, and NIB setup.

Opening a Bank Account in Portugal: Complete Step-by-Step Expat Guide 2026

A Portuguese bank account is one of the first practical tasks every expat must complete, yet it's often more complicated than expected. From choosing between major banks (Millennium bcp, CGD, Santander) to understanding the mandatory NIB (Portuguese account number), to navigating document requirements and online-only options, the process intimidates many newcomers. Compounding the challenge: many Portuguese banks require in-person visits for non-residents, and English-language support varies widely.

This guide walks you through the entire process, from selecting a bank to receiving your debit card to using your account for rent, utilities, and daily life.

Why You Need a Portuguese Bank Account Immediately

While some expats attempt to use foreign banks (UK Wise, US Schwab), a Portuguese account is effectively mandatory for:

Unlike some EU countries, Portugal strongly prefers (and often requires) Portuguese bank accounts for residents. Opening one immediately removes countless obstacles later.

Prerequisite: NIF (Tax Identification Number)

You CANNOT open a Portuguese bank account without a NIF. The NIF is your Portuguese tax identification number—even if you're not yet working. Before approaching any bank, obtain your NIF (see separate NIF Registration Guide). Once you have NIF confirmation email, proceed to banking.

Choosing a Bank: Options & Comparison

Portugal's largest banks with online account opening options:

Recommendation for expats: Millennium bcp
Millennium offers a balance of branch availability (helpful if you need to deposit cash or resolve issues), English support, and straightforward online account opening for non-residents. Most expats successfully open Millennium accounts within 2-4 weeks.

Online Account Opening (Fastest Method)

Timeline: 2-4 weeks from application to receiving debit card

Most banks now offer remote account opening via video verification or document upload.

Step 1: Start Online Application (30 minutes)

Step 2: Video Verification or Document Upload (1-3 days)

Step 3: Bank Reviews & Approves (1-2 weeks)

Step 4: Receive Debit Card (1-2 weeks after approval)

Total time: 2-4 weeks online to having functional account

Pro tip: Do NOT attempt in-person banking if you can open remotely. Video/document verification is faster and avoids scheduling headaches with branch appointments (often 2-3 weeks out).

In-Person Account Opening (If Required)

Some banks or account types require in-person verification. Timeline is slower but acceptable if you have time before needing the account active.

Step 1: Schedule appointment (1-3 weeks in advance)

Step 2: Attend appointment with required documents (see below) (30-60 minutes)

Step 3: Receive permanent card in mail (1-2 weeks)

Total time: 3-4 weeks in-person to account activation

Required Documents Checklist

Essential (bring/upload original + copy):

Conditional (may be requested depending on bank):

What you DON'T need (contrary to myth): Portuguese residence permit, proof of employment from Portuguese employer, minimum opening deposit, mortgage/property lease.

Account Types & Monthly Costs

Starter/Basic Account (recommended for most expats):

Premium/Advantage Account:

Student Account (if applicable):

Recommendation: Open a free Starter account. Avoid premium accounts unless you specifically need additional services.

Your NIB: Understanding Your Portuguese Account Number

NIB (Número de Identificação Bancária) is your Portuguese account number—24 digits unique to your account. Format: BBBBBBBB CCCCCCCCCC CCCC (Bank code + Branch + Account number)

You'll need your NIB for:

You'll receive your NIB immediately upon account activation (visible in online banking, on debit card, or via bank statement). Save it in multiple places (phone, email, document) as you'll reference it constantly.

First Steps: Setting Up Your Account

Once account is active, immediately:

Common Issues & Solutions

Issue: "Account opening rejected—insufficient proof of address"
Solution: Obtain Atestado de Residência from city hall (Câmara Municipal) instead of relying on rental contract. Available same-day, free, and accepted by all banks.

Issue: "Your payment failed—please use NIB not IBAN"
Solution: For Portuguese domestic transfers, always use NIB (24 digits). IBAN is only for international transfers. Utilities and landlords always request NIB specifically.

Issue: "Can't access online banking—SMS verification code not received"
Solution: Register backup phone number in online settings. Call bank immediately if SMS fails; may need to reset 2FA or verify identity.

Issue: "Bank requesting large deposit before account approval"
Solution: No legitimate Portuguese bank requires deposits to open accounts. If requested, try different bank. Millennium, Santander, Novo Banco do not require deposits.

Conclusion: First Financial Gateway to Portugal

Opening a Portuguese bank account is your first financial integration step. While the process seems daunting upfront, online account opening has simplified it significantly—most expats now open accounts remotely within 2-4 weeks without visiting a branch. Choose Millennium bcp or Novo Banco, gather your documents (passport, NIF, proof of address), apply online with video verification, and you're set.

The account becomes your financial anchor in Portugal—your receiving point for wages, your payment method for bills, your connection to Portuguese financial systems. Prioritizing this early in your relocation eliminates delays cascading through housing, employment, and utility setup.

Official sources & further reading

Written by Iris Sousa.

Iris writes about daily life in Portugal — cost of living, healthcare, community and the practical side of settling in. She profiles cities and regions across the country to help newcomers find the place that fits their budget and lifestyle.

Read our editorial standards & research methodology.