1. What is the NIF and what is it for?

The NIF, or Número de Identificação Fiscal (Tax Identification Number), is a unique identifier universally required in Portugal for any interaction with the Tax and Customs Authority (AT), as well as for the vast majority of civil and economic activities. It is the Portuguese equivalent of an international 'Tax Identification Number' or 'TIN'. Its possession is a legal requirement for the tax identification of individuals and legal entities before the Portuguese State, as stipulated in the Code of Tax Procedure and Process (CPPT) and the Code of Personal Income Tax (CIRS).

Without a NIF, a foreign individual faces a series of practical and legal impediments that prevent their full integration into Portuguese society. Activities for which the NIF is indispensable include, but are not limited to:

• Opening a bank account: Essential for managing personal finances, receiving salaries, making payments, and accessing financial services.
• Renting or purchasing property: Whether for own housing or investment, the NIF is mandatory for signing rental agreements and deeds of sale.
• Contracts for essential services: Includes telecommunications (mobile, internet, television), electricity, water, and gas.
• Setting up a professional activity: Whether as a self-employed worker (recibos verdes) or for the incorporation of a commercial company (setting up a company in Portugal).
• Registration at universities and schools: For foreign students, the NIF is often requested for enrolment.
• Access to public and private health services: While not strictly necessary for an emergency, it is fundamental for registration with the National Health Service (SNS) and for issuing medical invoices for tax purposes.
• Receiving salaries or pensions: Any income paid in Portugal requires the tax identification of the beneficiary.
• Payment of taxes: All taxes due in Portugal (IRS, IMI, IVA, etc.) are associated with the taxpayer's NIF.

The NIF is a 9-digit number that allows the AT to monitor all financial transactions and tax obligations of its holder, ensuring transparency and legal compliance. Obtaining it is, therefore, the first administrative step for any foreigner who intends to settle, invest, or have any type of economic relationship with Portugal.

2. Who can obtain a NIF and what are the general requirements?

Anyone, regardless of their nationality or residence, can obtain a NIF in Portugal. The requirements vary slightly depending on the applicant's residence status and nationality. The applicable legislation, namely the Tax Benefits Statute (EBF) and the CPPT, establishes the conditions for NIF assignment.

2.1. Required Documents

The basic documents required for NIF assignment are:

• Identification document:
  • EU/EEA citizens: Citizen Card or national Identity Card.
  • Non-EU/EEA citizens: Valid passport.
• Proof of address: This document must attest to the applicant's tax residence address.
  • For residents in Portugal: Water, electricity, gas, telecommunications bill, or a rental agreement registered with Finanças, or a declaration from the Parish Council (Junta de Freguesia). The address indicated will be the tax address in Portugal.
  • For non-residents in Portugal: Utility bill (water, electricity, gas, telephone) from the current country of residence, bank statement, or other official document proving the address. This will be the tax address in the applicant's country of origin.

It is crucial that the documents are up-to-date and that the tax address is correctly declared, as this is the address to which the AT will send official communications. Any change of address must be communicated to the AT within 30 days, as per Article 19 of the CPPT.

2.2. The Importance of the Tax Address

The tax address is a central element for NIF assignment and for managing tax obligations. It is through this address that the AT establishes contact with the taxpayer. For non-residents, the tax address will be that of their country of residence, which means that official AT communications will be sent there. This distinction is fundamental for determining the obligation to have a tax representative in Portugal.

3. How to Obtain a NIF: Methods and Procedures

There are essentially two ways to obtain a NIF in Portugal: in person or remotely, through a representative. The choice of method will depend on the applicant's availability and geographical location.

3.1. Obtaining a NIF In Person

This is the most direct and fastest way to obtain a NIF. It allows for immediate assignment of the number and is free of charge.

• Location: Go to any Finanças Service (Tax Office) or Citizen's Shop (Loja de Cidadão) that provides Tax Authority services.
• Documents: Present your passport (or European identification card) and proof of address.
• Procedure: The AT official will fill out the application form, verify the documents, and assign the NIF on the spot. A proof of the number will be issued.
• Tax Representative (for non-EU/EEA residents): If the applicant is a citizen from outside the EU/EEA and does not wish to opt for electronic notifications, they must be accompanied by their tax representative or present the document appointing them.

Practical Example: Ms. Schmidt, a German citizen, arrives in Lisbon with her German Citizen Card and a copy of her rental agreement in Portugal (duly registered). She goes to the Anjos Citizen's Shop, presents the documents, and within 15 minutes obtains her NIF free of charge. The associated tax address will be that of her apartment in Lisbon.

3.2. Obtaining a NIF Remotely, Without Coming to Portugal

This method is particularly useful for foreigners who wish to deal with their tax situation in Portugal before moving or who do not plan to travel to the country. It requires the appointment of a representative in Portugal.

• Representative: The applicant must appoint a tax representative in Portugal. This can be a certified accountant, a lawyer, or any individual or legal entity with residence or headquarters in Portuguese territory.
• Power of Attorney: A power of attorney is required, granting powers to the representative to apply for the NIF on behalf of the applicant. The power of attorney must be specific for this purpose and, if issued abroad, must be apostilled (Hague Convention) or legalised by a Portuguese consulate, and translated into Portuguese by a certified translator, if necessary.
• Documents: The representative will present to the AT the power of attorney, a certified copy of the applicant's passport, and the applicant's proof of address in their country of residence.
• Procedure: The representative submits the application to the AT. The process can take between 5 to 15 working days, depending on the workload of the services and the correct submission of all documents.
• Costs: Obtaining the NIF itself is free, but there will be costs associated with the tax representative's services (fees for the power of attorney, processing the application, and, if applicable, for the ongoing tax representative function).

Practical Example: Mr. Patel, an Indian businessman, intends to open a company in Portugal. He is still in India and has no immediate plans to travel. He contacts HVR Business Consulting to represent him. He sends a certified copy of his passport and an electricity bill from his residence in India. He signs a specific power of attorney for obtaining the NIF, which is apostilled in India. HVR Business Consulting, as his tax representative, submits the application to the AT. Within 10 working days, Mr. Patel obtains his Portuguese NIF, which allows him to start the company incorporation process. HVR Business Consulting's fees for this service are €150.

4. Tax Representative in Portugal: Obligation and Implications

The role of the tax representative is of extreme importance for non-residents in Portugal and is regulated by Article 19 of the Code of Tax Procedure and Process (CPPT) and the Tax Benefits Statute (EBF).

4.1. Who Needs a Tax Representative?

The appointment of a tax representative in Portugal is mandatory for:

• Individuals and legal entities not resident in Portuguese territory, who are subject to IRS (Personal Income Tax) or IRC (Corporate Income Tax) and who do not opt for electronic notification and citation on the Finanças Portal.
• Individuals and legal entities resident in a third country (outside the European Union or the European Economic Area) who are subject to IRS or IRC, regardless of whether they opt for electronic notifications.

The exemption from the mandatory tax representative for non-residents in the EU/EEA who opt for electronic notifications was a recent legislative change, introduced by Law no. 7/2021, of February 26, which amended Article 19 of the CPPT. However, for residents outside the EU/EEA, the appointment remains mandatory.

4.2. Functions and Responsibilities of the Tax Representative

The tax representative acts as a link between the non-resident and the Tax Authority. Their responsibilities include:

• Receiving correspondence: Ensuring that all notifications, citations, and communications from the AT reach the non-resident taxpayer.
• Compliance with tax obligations: Informing the non-resident about their tax obligations in Portugal, such as submitting income tax returns (IRS), paying taxes (IMI, IMT, etc.), and other ancillary obligations.
• Representation before the AT: Acting on behalf of the non-resident in complaint, challenge, or other contact processes with the AT.

It is important to note that the tax representative shares responsibility with the non-resident for fulfilling tax obligations. That is, in case of non-compliance, the AT may hold the tax representative jointly and severally liable, in certain circumstances, for the payment of due taxes and respective fines, as per paragraph 6 of Article 19 of the CPPT.

4.3. Associated Costs

The function of a tax representative is a professional service and, as such, involves the payment of fees. These vary depending on the professional (accountant, lawyer) and the complexity of the represented party's tax situation. Costs may include:

• Appointment fees: For the act of appointment and registration with the AT.
• Annual fees: For maintaining tax representation and managing correspondence.
• Additional fees: For specific services such as submitting IRS returns or managing notifications.

In the guide Tax Representative in Portugal, we explain the rules, exemptions, and average costs associated with this service in greater detail.

5. Common Mistakes to Avoid in the NIF Application Process

Although the NIF application process seems straightforward, there are some common mistakes that foreigners can make, leading to delays or complications. Avoiding these errors can save time and frustration.

• Not having valid or up-to-date proof of address: One of the most frequent requirements for the NIF is proof of address. Old bills, documents without the applicant's name, or with an incorrect address are reasons for refusal. Ensure the document is less than 3 months old and in your name.
• Outdated tax address: After obtaining the NIF, if the applicant changes residence (either in Portugal or abroad), it is mandatory to communicate the new address to the AT within 30 days (Article 19 of the CPPT). Failure to update can result in AT communications not reaching the taxpayer, leading to fines or loss of deadlines for challenging tax acts.
• Not appointing a tax representative when mandatory: For non-residents outside the EU/EEA, the appointment of a tax representative is mandatory. The absence of a tax representative can result in fines and the inability to comply with tax obligations. The fine for not appointing a tax representative can range from €75 to €7,500, as per Article 123 of the General Regime of Tax Infractions (RGIT).
• Incorrect or unlegalised power of attorney: When applying for the NIF remotely, the power of attorney must be specific for the purpose, contain the necessary powers, and be duly legalised (apostilled or recognised by a consulate) and, if necessary, translated. A power of attorney with errors or without the required formality will be rejected.
• Assuming that a non-resident NIF automatically converts to resident: When a non-resident foreigner moves to Portugal and becomes a tax resident, they must communicate this change to the AT. The non-resident NIF does not convert automatically. This change is fundamental for IRS taxation purposes (Article 16 of the CIRS).
• Not activating electronic notifications (Electronic Mailbox): Opting for electronic notifications on the Finanças Portal (via Via CTT) is a secure and efficient way to receive AT communications. For non-residents in the EU/EEA, it can even waive the need for a tax representative. Not activating them can lead to the loss of important information.
• Unawareness of tax obligations associated with the NIF: Obtaining the NIF is the first step. It is crucial for the foreigner to inform themselves about their tax obligations in Portugal, such as the IRS declaration, the payment of IMI (if they own property), or VAT (if they have a business activity). Ignorance of the law does not exempt from its compliance.

6. I have a NIF — what now? Next Steps and Recommendations

Obtaining a NIF is a crucial milestone, but it is only the beginning of the journey for those who intend to settle or invest in Portugal. With your NIF in hand, a wide range of opportunities and obligations open up.

6.1. NIF Activation and Use

• Opening a Bank Account: Go to a Portuguese bank with your NIF, passport, and proof of address to open an account. This is essential for managing your finances, receiving income, and making payments in Portugal.
• Service Contracts: Use your NIF to sign rental agreements, property purchase and sale deeds, and contracts for telecommunications, electricity, water, and gas services.
• Registration on the Finanças Portal: It is highly recommended to register on the Finanças Portal with your NIF. This registration allows you to access your personal area, consult your tax situation, submit declarations, and opt for the electronic mailbox (Via CTT) to receive AT notifications.
• Professional Activity: If you intend to work as an employee, your NIF will be requested by your employer. If you intend to be self-employed, you will need to start activity with Finanças.

6.2. Tax Planning and Future Obligations

With the NIF, the taxpayer becomes subject to Portuguese tax laws. It is fundamental to understand your obligations:

• IRS Declaration: If you earn income in Portugal, you will have to submit an annual Personal Income Tax (IRS) declaration. The deadlines and rules are defined in the CIRS.
• Non-Habitual Resident (NHR) Regime: If eligible, you may benefit from the Non-Habitual Resident regime, which offers significant tax advantages for 10 years. Adherence to this regime must be made by March 31 of the year following your move to Portugal.
• Municipal Property Tax (IMI): If you acquire property, you will be subject to IMI, an annual tax on the taxable property value, regulated by the IMI Code.
• Municipal Tax on Onerous Property Transfers (IMT): When acquiring property, IMT is a one-off tax paid at the time of purchase, with variable rates.

6.3. Company Formation

For entrepreneurs, the NIF is the starting point for formalising their activity. See our complete guide to setting up a company in Portugal as a foreigner. This process involves choosing the type of company, registration with the Commercial Registry Office, and starting activity with Finanças, with implications for the IRC Code and the VAT Code.

Practical Example: Ms. Lee, a South Korean citizen, obtained her NIF through tax representation. Now, she intends to open an e-commerce business in Portugal. With the NIF, HVR Business Consulting can proceed with the incorporation of her company, by power of attorney. The process involves creating the company (commercial registration cost of about €360), registering the activity for VAT purposes (standard rate of 23% for most goods and services), and complying with IRC obligations (general rate of 21% on taxable profit, with reduced rates for SMEs). Ms. Lee, being outside the EU/EEA, retains HVR Business Consulting as her tax representative, ensuring compliance with all tax obligations and avoiding fines.

6.4. Final Recommendations

The complexity of the Portuguese tax system, especially for non-residents, underscores the importance of professional support. We strongly advise seeking the assistance of a certified accountant or lawyer specialising in international taxation. These professionals can not only handle the NIF application and tax representation but also provide advice on the best tax framework for your situation, ensuring compliance with obligations and tax optimisation.

Do not hesitate to contact us for personalised support throughout the process, from obtaining your NIF to setting up your company and managing your tax obligations in Portugal.

7. Sources and Legal References

• Code of Tax Procedure and Process (CPPT) – Article 19 (Tax Domicile), Article 123 (Failure to appoint a tax representative).
• Tax Benefits Statute (EBF).
• Code of Personal Income Tax (CIRS) – Article 16 (Residence), Article 101 (Obligation to submit a declaration).
• Code of Corporate Income Tax (CIRC).
• Code of Value Added Tax (CIVA).
• Code of Municipal Property Tax (CIMI).
• General Regime of Tax Infractions (RGIT).
• Law no. 7/2021, of February 26 (Amends the Code of Tax Procedure and Process, regarding tax domicile and tax representation of non-residents).