Ariana MartinsWhen you start living and working in Portugal, you usually become a tax resident here and report your income to the Tax Authority through IRS (personal income tax). There is IFICI, a tax incentive that replaced the old Non-Habitual Resident scheme, but eligibility depends on your case. Always confirm with the Tax Authority or an accountant before counting on any regime.
When you start living and working in Portugal, you usually become a tax resident here and report your income to the Tax Authority (Autoridade Tributária, or AT) through IRS, the personal income tax. This article covers the broad strokes in plain language. It is not advice: the rules change and every situation differs, so always confirm with the AT or an accountant.
What is tax residency?
As a rule, you become a tax resident in Portugal when you spend most of the year here or keep your home here as your habitual residence. From that point, this is where you file your annual IRS return. If you arrived mid-year or still have ties to another country, there can be a transition period and rules to avoid being taxed twice. This is exactly the kind of detail worth clearing up with a professional.
How IRS works, in general
IRS is the tax on personal income. If you are an employee, an amount is usually withheld from your salary each month, and the following year you file a return that settles up: sometimes you get a refund, sometimes you pay the difference. The system is progressive, but I will not invent brackets or percentages here — those figures are set by law and you should confirm them at the official source.
It is worth matching this against your real budget. We wrote about that in cost of living in Portugal: what to expect, so you get a sense of what is left at the end of the month.
And IFICI, the scheme for newcomers?
There is IFICI — the Tax Incentive for Research and Innovation — which replaced the old Non-Habitual Resident (NHR) scheme. It is designed to attract certain profiles and activities. I will not give you percentages or promise you qualify, because that genuinely depends on your specific case: your role, your sector, your tax history. The only honest answer is: there may be an advantage, but it has to be assessed case by case by the Tax Authority or an accountant.
- Request your NIF (tax identification number) — it is the first step for almost everything.
- Keep records of your income and your move (entry dates, contracts).
- Talk to an accountant early about tax residency and about IFICI, before you assume anything.
- Confirm the IRS filing deadlines on the Tax Authority portal.
Social Security contributions are separate from IRS, and they count towards your social protection. We explain that in health and social security in Portugal. If you have already worked in another country, also see how your contribution record built abroad fits in.
Nobody expects you to master IRS in your first month. The costly mistake is assuming a regime applies without confirming.
Frequently asked questions
Will I pay tax in two countries?
Portugal has agreements with many countries to avoid double taxation. How they apply to you depends on where you are a tax resident and where your income comes from. Confirm with the Tax Authority or an accountant.
Does IFICI apply to me?
It depends on your role, sector and situation. There is no automatic answer. Assess it with a professional before counting on any benefit.
When do I file my first IRS return?
Usually in the year after the year you earned income here, within the deadlines set by the Tax Authority. Confirm the dates on the official portal.
Do I need an accountant?
For a straightforward salary, many people handle IRS themselves. But if your tax residency is in transition, you have income in another country, or questions about IFICI, an accountant avoids mistakes and saves time.
Does this affect applying for a job?
No. Your tax situation gets sorted out after you move. Start by looking at the opportunities and deal with taxes once the move is real.
- Autoridade Tributária e Aduaneira (Portuguese Tax Authority) [confirmar]
- Ordem dos Contabilistas Certificados [confirmar]