Who gets a tax refund in Portugal and how the system works

Portugal's tax authority, the Autoridade Tributária e Aduaneira (AT), issues refunds when you have paid more income tax than you owe for the year. This happens most often if your employer withheld too much from your salary, or if you had multiple jobs and the total withholding exceeded your actual tax liability. Self-employed people and business owners can also receive refunds if they overpaid quarterly or annual instalments.

The refund process in Portugal is tied to your annual tax return, called the Declaração de Imposto sobre o Rendimento das Pessoas Singulares (IRS) for individuals or Imposto sobre o Rendimento das Pessoas Coletivas (IRC) for companies. You file this return, the AT reviews it, and if you are owed money, they process the refund. The timeline and method depend on how you file and whether the AT needs to ask you questions about your return.

Non-residents working in Portugal can also receive refunds, though the process differs slightly. If you worked in Portugal but lived abroad, you may still be may have access to to a refund if tax was withheld from your wages.

Key Takeaways

  • File your IRS tax return between January and June each year to claim a refund; filing early increases the chance the AT will process it without requesting more information.
  • You can file online through the AT's portal (Portal das Finanças) using your digital certificate or mobile key, or on paper at a local tax office.
  • Refunds typically arrive within two to four months if your return is straightforward and requires no follow-up questions from the AT.
  • The AT will deposit your refund directly to the bank account you list on your return; provide your IBAN to avoid delays.
  • If the AT needs clarification on your return, they will contact you by mail or through your Portal das Finanças account, and processing will pause until you respond.

Filing your tax return to claim a refund

The tax year in Portugal runs from January 1 to December 31, and you must file your return between January 1 and June 30 of the following year. The earlier you file, the sooner the AT can begin processing your refund. Filing in January or February gives the AT more time to review your return before the June deadline and reduces the risk of delays caused by high volume in May and June.

You have three ways to file: online through the AT's Portal das Finanças, on paper at a local tax office, or through a licensed tax representative (a consultor fiscal). Most people file online because it is faster and the portal guides you through each section. To use the portal, you need a digital certificate (cartão de cidadão with a PIN) or a mobile key (chave móvel digital). If you do not have either, you can request one from the AT or use a tax representative to file on your paper return.

When you file, you will enter all income you received during the year—salary, self-employment income, rental income, investment returns, and any other earnings. You will also list deductions and expenses you are allowed to claim. The portal calculates your tax liability based on this information and shows you whether you owe money or are owed a refund. Review this figure carefully before submitting, because errors can delay processing.

How long refunds take and how they are paid

If your return is complete and requires no follow-up from the AT, you can expect your refund within two to four months of filing. Some refunds arrive faster—occasionally within six to eight weeks—but this depends on the AT's workload and the complexity of your return. Returns filed in January or February tend to process faster than those filed in May or June.

The AT deposits refunds directly to the bank account you provide on your return. Make sure your IBAN (International Bank Account Number) is correct and matches the account holder's name on your tax file. If the account details are wrong, the refund will be rejected and returned to the AT, adding several weeks to the process. You can update your bank details through the Portal das Finanças at any time before the refund is processed.

You will receive a notification through the Portal das Finanças when your refund has been approved and sent to your bank. Your bank will then deposit the money into your account, usually within one to three business days. Check your Portal das Finanças account regularly after filing to watch for this notification.

What to do if the AT requests more information

The AT may contact you if your return contains inconsistencies, missing information, or deductions that need explanation. They will send you a formal request (a notificação) by mail or through your Portal das Finanças account. This request will specify what documents or clarification they need and give you a deadline to respond—usually 10 to 30 days depending on the complexity of the issue.

Common reasons for follow-up include mismatched income figures (your employer's records do not match what you reported), missing receipts for claimed deductions, or questions about self-employment income. Respond to the AT's request promptly with the documents they ask for. If you do not respond by the deadline, the AT may reject your refund claim or reduce the refund amount.

If you are unsure how to respond or what documents to provide, you can contact the AT directly by phone, email, or in person at your local tax office. You can also hire a tax representative to handle the correspondence for you. Once you respond, the AT will resume processing your return, and you should receive your refund within four to eight weeks.

Tracking your refund status online

The Portal das Finanças is your main tool for tracking your refund. Log in with your digital certificate or mobile key, navigate to the "Declarações" (Returns) section, and select the tax year you filed for. You will see the status of your return—whether it has been received, is under review, has been approved, or is awaiting your response to a request for information.

The portal also shows the refund amount the AT has calculated and the date it was sent to your bank. If your return is still under review, the portal will not show a refund amount yet. If the AT has requested more information, the portal will display the request and the deadline for your response.

You can also contact the AT by phone at 217 206 000 (the main helpline) or visit your local tax office in person. Have your tax identification number (NIF) ready when you call or visit. Response times vary, but the portal is usually the fastest way to get current information about your refund status.

Special cases: non-residents and self-employed workers

If you worked in Portugal but are not a resident, you may still be may have access to to a refund if tax was withheld from your wages. Non-residents must file a Portuguese tax return if they earned income in Portugal, even if they did not live there. The filing deadline and refund process are the same as for residents, but you may need to provide additional documentation proving your non-resident status or your tax status in your home country.

Self-employed workers and business owners file a different return (the IRS for self-employed individuals or the IRC for companies) and may pay tax through quarterly or annual instalments rather than through employer withholding. If you overpaid these instalments, you can claim a refund on your annual return. The refund process is the same: file your return, and the AT will calculate whether you are owed money and send it to your bank account.

If you operate a business and are registered for VAT (Imposto sobre o Valor Acrescentado), you may also be may have access to to VAT refunds if your VAT paid exceeds your VAT collected in a given period. VAT refunds are handled separately from income tax refunds and have their own filing requirements and timelines.

What to do if your refund does not arrive on time

If more than four months have passed since you filed and you have not received your refund, check the Portal das Finanças first to confirm the refund was approved and sent to your bank. If the portal shows the refund was sent but your bank has not received it, contact your bank to ask whether the transfer was rejected or delayed. Provide your bank with the refund amount and the date it was supposedly sent.

If the portal shows your return is still under review after four months, contact the AT to ask for an update. Delays can happen if the AT is processing a high volume of returns or if there is an issue with your return that has not been communicated to you. Request a specific timeline for when you can expect a decision.

If the AT rejected your refund claim or reduced the refund amount, they will send you a formal notice explaining the reason. You have the right to appeal this decision within a set timeframe (usually 90 days). If you disagree with the AT's decision, you can file an appeal through the Portal das Finanças or with the help of a tax representative.

Frequently Asked Questions

Do I have to file a tax return to get a refund?

Yes. The only way to receive a refund from the AT is to file an annual tax return. If you are employed and your employer withheld tax, you will not receive that money back unless you file. Self-employed workers and business owners must also file to claim refunds on overpaid instalments.

What if I filed my return but forgot to include my bank account details?

Log into the Portal das Finanças and update your bank account information as soon as possible. If the AT has already processed your refund and sent it to an incorrect account, contact the AT to report the error. They may be able to redirect the refund or reissue it to the correct account, though this can add several weeks to the process.

Can I file my tax return after June 30?

You can file after the June 30 deadline, but you may face penalties or interest charges depending on how late you file and whether you owe tax. If you are owed a refund, filing late will not reduce the refund amount, but it will delay when you receive it because the AT processes returns filed before the deadline first.

How do I know if I need to file a tax return?

If you earned any income in Portugal during the year—whether from employment, self-employment, rental property, or investments—you are required to file a tax return. Even if your employer withheld tax, you must file to claim a refund if you overpaid. Check the AT's website or contact them if you are unsure whether your situation requires a return.

What happens if the AT finds an error on my return after they approve my refund?

If the AT discovers an error after approving and sending your refund, they will contact you to explain the issue. Depending on the error, you may owe money back to the AT, or they may owe you additional refund. The AT will work with you to resolve the discrepancy, usually through a payment plan or an adjustment to a future refund.