What is a NIF in Portugal?
The Número de Identifição Fiscal (or NIF for short) is a personal tax number issued by the Portuguese tax authority, the Autoridade Tributária e Aduaneira. Think of your NIF like your National Insurance Number in the UK or your Social Security Number in the US. It identifies you in financial, legal and administrative matters, from buying property to setting up utilities.
Having a NIF is essential if you want to do just about anything involving money or contracts in Portugal. This includes buying a house, opening a bank account, applying for a mortgage, and even signing up for electricity or internet.
You don’t have to live in Portugal full-time to get a NIF. In fact, you can apply as a non-resident, which is especially useful if you’re planning to buy property or prepare for a move in the future.
Why do I need a NIF number in Portugal?
If you’re planning to purchase a home, sign a rental agreement, or open a bank account, your NIF will be the key that unlocks the next stage. Here are just a few things that require a NIF:
Buying or renting property, as it is impossible to purchase or lease real estate without one.
Opening a bank account.
Setting up utilities, such as electricity, water, internet, or mobile phone contracts.
Applying for a mortgage from a Portuguese lender.
Paying taxes, whether you plan to rent out your property or eventually become a resident.
Even simple tasks, such as joining a gym or signing up for a mobile phone contract, often requires a NIF. It’s one of those small but important details that makes a big difference to your life in Portugal.
If this all sounds a little intimidating, don’t worry. It’s completely normal to feel a little overwhelmed when dealing with a new country’s systems, but getting your NIF is usually quick, low-cost, if not free, and very straightforward.
How to get a NIF in Portugal as a non-resident
If you’re not living in Portugal yet, the good news is that you don't need to wait until you arrive to apply for your NIF. Many people get theirs from abroad before they even start house-hunting.
Do you need a fiscal representative?
If you’re from outside the EU or EEA, you will need to appoint a fiscal representative — someone based in Portugal who agrees to handle any tax correspondence on your behalf.
This can be:
- A Portuguese lawyer
- An accountant
- A professional fiscal representation service
If you’re from an EU or EEA country, a fiscal representative is usually not required, but you may still choose to use one for convenience.
Where and how can you apply?
There are a few ways to apply for your NIF from abroad:
- Through a lawyer based in Portugal
- Via an online agency or fiscal representation service
- By giving power of attorney to someone in Portugal
Online services are becoming increasingly popular, especially for international buyers. Many agencies offer quick, digital applications, and some even provide your NIF within a few days.
Typical costs range from around €70 to €150, depending on the provider and the level of service.
What documents will you need?
To apply, you’ll usually need:
- A valid passport or EU ID card
- Proof of address in your home country (a recent utility bill or bank statement will usually do)
- Your fiscal representative’s details (if needed)
- In some cases, a signed authorisation form
Some services may also ask for proof of why you need the NIF — for example, because you're buying a property.
How long does it take?
This depends on the method you choose. Some online services can provide your NIF within two to five working days. Others might take a week or two. If you’re working through a lawyer, you’ll likely receive it quickly too.
No matter the route you take, make sure to choose a reputable provider and read reviews where possible. Unfortunately, some websites overcharge or do not provide the level of support you might expect.
How to get a NIF if you’re already in Portugal
If you’re in Portugal already, getting your NIF is usually a matter of visiting a Finanças office (the local tax office) and applying in person.
What to bring with you:
- Your passport or EU ID card
- Proof of address, either in Portugal or abroad
- If you’re from outside the EU or EEA, details of your fiscal representative
What to expect
When you arrive, you’ll need to take a ticket and wait for your number to be called. It’s a good idea to arrive early or check whether you can book an appointment online, especially in larger cities.
Once your number is called, you’ll hand over your documents and the staff will process your request. If all is in order, you will usually receive your NIF on the spot, either printed or sent via email.
The process is usually free of charge if you apply directly.
FAQs and tips for getting your NIF in Portugal
Can I get my NIF before I move to Portugal?
Yes, and in many cases it’s recommended. Having your NIF in hand before you start the buying process makes things much easier.
Do I have to pay to get a NIF?
Applying directly at a Finanças office is free. If you use a lawyer or online service, you will pay a service fee — typically between €70 and €150.
What happens if I change my address?
You must inform the Finanças office and update your NIF details. If you have a fiscal representative, they can often do this for you.
What if I lose my NIF number?
If you misplace your NIF, don’t worry. You can request a replacement at any Finanças office, or your service provider may be able to retrieve it for you.
How can I avoid scams?
Stick to well-reviewed and recommended agencies. Be cautious of websites charging high fees or making unrealistic promises.
Your first step to buying property in Portugal
Getting your Portuguese NIF is your first official step towards owning a home and starting your new life in Portugal. Whether you are buying remotely or already exploring the country in person, this simple number opens the door to everything from signing contracts to securing a mortgage.
Once you’ve got it sorted, you can start focusing on the fun part! Like choosing your ideal location, exploring the market, and finding a home you love.
For more support and information to help you navigate your next chapter, take a look at our other articles, specifically, our Comprehensive Guide to Portuguese Visas for all the necessary visa information and our Portugal Real Estate Market Outlook for 2025 to learn more about the property market before you make your move.
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