NIF Portugal: How to Get a Tax Identification Number

A NIF is required for most official and financial transactions in Portugal, whether you are a foreign resident or a Portuguese national. Common uses include: 

• Opening a bank account or receiving a bank statement 
• Buying or selling property 
• Signing a rental or utility contract
• Paying taxes and filing a tax return
• Receiving income, a salary, or Social Security payments
• Acquiring a loan or mortgage
• Enrolling in a Portuguese university 
• Buying a car or applying for a Portuguese driving license
• Inheriting Portuguese assets 

Many of these are common requirements rather than universal rules; a specific bank, landlord, or institution may impose its own conditions in addition to the NIF requirement.  

Once you have your NIF, it becomes the reference number used across virtually all interactions with Portuguese institutions. 

The process for obtaining a NIF depends on whether you apply in person or online, and whether you are a resident, a nonresident, or an EU/EEA national.  

Both routes result in the same nine-digit number, but the application channel determines who can submit it on your behalf. 

Apply in person at a tax office 

You can request a NIF directly at a local tax office (Finanças) or a citizen’s shop (Loja do Cidadão). Some offices require an appointment, so it is worth checking availability through the Portal das Finanças before you go.  

You will need to bring your documents, and if you are not comfortable with Portuguese, bringing a translator can help, since not all staff members speak English. 

Apply online through a legal representative 

Portugal also offers an online route through the e-balcão service on Portal das Finanças, but this request must be submitted by a legal representative acting on your behalf, rather than by you directly.  

Your legal representative logs in to the portal, completes the request, and attaches the required documents, including a power of attorney authorizing them to act for you. Global Citizen Solutions can act as your legal representative and obtain a NIF on your behalf. 

This online route is often the more practical option if you are applying from outside Portugal, since it does not require you to be physically present at a tax office. 

Before applying, gather the following: 

• An official photo ID, such as a passport 
• Proof of address, either in Portugal or in your country of residence (a bank statement, utility bill, or rental contract typically works) 

If you are applying with a Portuguese address, that address should be consistent across your other documents, since it signals that you intend to be treated as a local tax resident from the outset. 

If you are applying through a legal representative, you will also need to provide a power of attorney authorizing them to act on your behalf. Any documents in a language other than Portuguese, English, French, or Spanish must be translated. 

These two roles are often confused, but they serve different functions and apply at different points in the process. 

A legal representative is the person who submits your online NIF request through the e-balcão service, acting on your behalf for that specific transaction under a power of attorney. 

A Portugal fiscal representative is an ongoing tax-contact role: an individual or business based in Portugal who acts as the point of contact between you and the AT for as long as the requirement applies.  

Their responsibilities can include receiving tax correspondence and helping you stay on top of compliance deadlines. A fiscal representative does not need to be a lawyer or accountant, but they must be a resident of Portugal. 

The same person can potentially act in both capacities, but appointing a legal representative to submit your NIF request does not automatically make them your fiscal representative going forward. These are separate appointments with separate scopes. 

Contrary to a common assumption, non-residents are not required to appoint a fiscal representative simply to be assigned a NIF. At the point of registration, the AT can assign a NIF to a non-resident without a fiscal representative in place. 

The requirement to appoint one is triggered separately once a tax legal relationship begins, such as owning property, holding a bank account, signing an employment contract, or engaging in other activities that create tax obligations in Portugal.  

From that point, you generally have 15 days to either appoint a fiscal representative or, where eligible, register for electronic notifications through Portal das Finanças as an alternative. 

There is one exception: If you carry out self-employed activity in Portugal, you are required to appoint a fiscal representative for VAT purposes, and the e-notifications alternative does not apply in that case. 

Your NIF number itself never changes, but the status and address attached to it do, as your circumstances evolve. When you are first assigned a NIF as a nonresident, the AT registers you with that status.  

Once you meet the conditions to be considered a Portuguese tax resident, you are responsible for requesting a change of address and tax status with the AT, rather than assuming this will happen automatically. 

This distinction matters: Having a NIF, even one linked to a Portuguese address for a specific transaction, does not by itself determine your tax residency.  

Tax residency depends on separate criteria, including time spent in Portugal and the nature of your ties to the country.  

Because this determination can affect your tax obligations, it is worth discussing your specific situation with a tax advisor rather than relying on general guidance. 

To update your address or status, you can request an appointment through Portal das Finanças or contact the AT directly to confirm the required steps for your situation. 

The NIF is often confused with Portugal’s other identification numbers, but each serves a distinct purpose. 

The NISS (Número de Identificação de Segurança Social) is your Portuguese Social Security identification number. It is generally associated with working in Portugal, whether as an employee or a self-employed professional, and some foreign residents can also request it online through employer-supported or integrated application routes. 

The SNS number is used to access Portugal’s national health service and is separate from both the NIF and the NISS. 

For business activity, individuals such as freelancers and sole traders can generally use their personal NIF for tax purposes, while legal entities like limited companies require their own number, the NIPC (Número de Identificação de Pessoa Coletiva), which also functions as the VAT number.  

The exact registration requirements, applicable rates, and filing obligations depend on the type of entity and activity involved.  

A NIF is an administrative and tax identification number. Having one, including in the context of a Portugal Golden Visa application, does not itself grant residence or immigration eligibility; that depends on the separate visa or residency route you pursue.