Owner hub · deadlines verified 19 August 2026

After you buy: the first 90 days as a foreign homeowner in Portugal

The deed is signed and the keys are yours; now a sequence of Portuguese admin starts, and the order matters more than the list, because several steps block others. This hub orders the first 90 days as a dependency chain, states the deadlines that were verified against official sources on 19 August 2026, and links the deep guide for each step. Two widely repeated deadlines turned out to be wrong when checked, so if something here contradicts what you read elsewhere, that is why.

Quick answer

Three verified deadlines anchor the first 90 days: 60 days to update your tax address with Finanças, where an unreported change is legally ineffective; two years, not 90 days, to exchange a non-EU driving licence, while EU licences need no exchange at all; and 12 months to claim the ISV car-import exemption. The first IMI bill arrives in May. Verified 19 August 2026.

The verified deadlines

ObligationDeadlineApplies toBasis
Notify Financas of your new tax address60 daysEveryone whose domicile changedLGT art. 19
Fire insurance on a condominium fractionAt completionApartment ownersCivil Code art. 1429
First IMI billMay (splits to Aug/Nov above thresholds)All owners, year after acquisitionCIMI art. 120
AL registration before any short letBefore advertising; 60-90 day objection windowAnyone letting short-termDL 128/2014
Exchange a non-EU driving licence2 years from residence (EU/EEA: no exchange)New residents onlyIMT / gov.pt
ISV exemption on an imported personal carClaim within 12 months of movingNew residents onlyCodigo do ISV arts. 58-60

Verified against the consolidated statutes and gov.pt on 19 August 2026. Two widely repeated figures failed verification and are absent deliberately: a "90-day" licence-exchange deadline (gov.pt says two years for non-EU, none for EU/EEA) and any euro figure for the address-change fine.

The 60-day rule with a consequence nobody explains

You have 60 days to tell Financas your address changed, under article 19 of the Lei Geral Tributaria, and the fine for missing it is small. The real mechanism is harsher: an unreported change of domicile is legally ineffective, so as far as the tax authority is concerned you still live at the old address, and everything served there counts as delivered. That is how owners miss an IMI notice, an assessment, an appeal window, and first hear about a debt when it reaches enforcement. It is the first task after completion because notices about everything else on this page flow to whatever address Financas holds.

The chain, not the checklist

Ordering matters because several steps gate others. The tax address unlocks correctly-routed IMI notices and every future assessment. The deed and NIF unlock the utility transfers, which a vacant home may need days to reconnect. The condominium's insurance position determines whether you buy a full policy or just close the gap, per our insurance guide. A non-EU owner's choice between a fiscal representative and electronic notifications decides how those notices reach them at all. And anyone planning a short let files the AL registration first and waits out the objection window, because advertising an unregistered unit is itself the offence; a long-term landlord instead reads the 2026 rental tax rules, which changed in May 2026 in the landlord's favour.

The admin is not hard. It is ordered, and the order is what the forums never tell you.

If you moved, not just bought

Owners who became residents carry three more items. The driving licence: an EU or EEA licence needs no exchange at all, you drive on it until it expires, while a non-EU licence from a convention country must be exchanged with the IMT within two years of residence, and a licence from outside the conventions is not valid here from day one. The car: one personal vehicle can enter free of ISV if the claim is filed within 12 months of the move, with a 12-month no-sale lock after it is plated, and further owner and vehicle conditions checked with AT customs. And health: register at your local health centre for a numero de utente to access the SNS; procedures vary by centre, so bring your residence document, NIF and NISS and ask what your centre requires. For the running costs that begin now, the Annual Cost of Owning data page carries the yearly figures, and if the plan is to let the home, the Rental Yield Index and the management-cost guide close the arithmetic. Portugal Property Invest is an independent advisory and referrer; the deadlines above were verified on 19 August 2026 against official sources, and your own dates and documents should be confirmed with a licensed Portuguese professional.

Sources

  • Lei Geral Tributaria art. 19.º - the 60-day domicile notification and the ineffectiveness rule. diariodarepublica.pt
  • gov.pt, "Trocar carta de conducao estrangeira por portuguesa" - EU/EEA: no exchange; non-EU convention countries: 2 years; verified 19 August 2026. gov.pt
  • Codigo do ISV, arts. 58.º-60.º (transfer-of-residence exemption) and the gov.pt service page - 12-month claim window, 12-month lock-in. gov.pt
  • CIMI art. 120.º (IMI payment months) and Civil Code art. 1429.º (compulsory fire insurance in horizontal property) - verified 19 August 2026.
  • Decreto-Lei n.º 128/2014 (AL registration and objection window) via the Turismo de Portugal technical guide, January 2025 edition.

Frequently asked questions

What do I have to do first after buying a house in Portugal?
Update your address with the tax authority, because almost everything else keys off it. You have 60 days under article 19 of the Lei Geral Tributaria to notify Financas of a change of domicile, and the consequence of missing it is worse than the small fine: an unreported change is legally ineffective, meaning the tax authority keeps serving notices to your old address and they count as delivered. IMI bills, assessment notices and deadlines can all pass you by unseen. Do it on the Portal das Financas or at a Financas desk, then move to utilities and insurance.
How do I set up utilities after buying?
Electricity and water contracts transfer or open in your name using the deed and your NIF; electricity sits in a regulated market overseen by ERSE, where you can choose between the regulated tariff and market offers and switch suppliers freely, while water is municipal. Internet is contractual with the usual providers. Budget the timing rather than the cost: a vacant home with no active contracts can take days to reconnect, so start the transfers as soon as you complete. Our Annual Cost of Owning data page carries the typical yearly figures.
Do I need insurance from day one?
For an apartment, effectively yes. Fire insurance for fractions in a condominium building is compulsory under article 1429 of the Civil Code, and the obligation attaches when the fraction is yours. First check what the condominium already holds: where it carries a collective policy, the compulsory layer is typically inside your monthly charge, and buying a full policy blind can mean paying twice for fire cover. What most foreign owners actually want on top is a voluntary multirriscos policy for water damage, contents and liability. Our home insurance guide covers the premiums and the two drivers that move them.
Do I need a fiscal representative after buying?
If you are resident outside the EU and EEA and have Portuguese tax obligations, which an owner receiving IMI notices does, then yes, under article 19 of the Lei Geral Tributaria, unless you adhere to the tax authority’s electronic notification channels, a dispensation created by Decreto-Lei 44/2022. How that dispensation is applied to owners with ongoing obligations varies in practice, so confirm your case before going without. EU and EEA residents are exempt from the requirement. The full comparison, including what representation services actually cost against the free alternative, is in our fiscal representative guide.
When is IMI due after I buy?
IMI is billed annually in arrears, with the notices arriving around May: bills up to 100 euros are paid in one instalment in May, bills of 100 euros or more but under 500 split across May and November, and bills over 500 split across May, August and November, automatically. As the new owner you pay for the first full year you own the property on 31 December; pro-rating with the seller is a private contractual matter, not something Financas does. The rate is municipal, inside the statutory 0.3% to 0.45% band, and charged on the VPT rather than your purchase price.
Do I need to exchange my driving licence in Portugal?
It depends where the licence is from, and the answer verified against gov.pt differs from what many sites say. An EU or EEA licence needs no exchange at all: you drive on it in Portugal until it expires. A licence from a non-EU country party to the international road traffic conventions must be exchanged within two years of establishing residence, through the IMT, not the 90 days often quoted. A licence from a country outside the conventions is not valid in Portugal at all, and you would sit a driving test. This only applies to people who become resident; a non-resident owner visiting their holiday home drives on their home licence.
Can I bring my car to Portugal without paying import tax?
If you are transferring your residence to Portugal, one personal vehicle can come in exempt from ISV, the vehicle tax, under the transfer-of-residence regime in the ISV code, administered by customs at the tax authority. The two hard numbers, verified: the claim must be filed within 12 months of transferring your residence, and once granted the car cannot be sold, rented or lent for 12 months after it receives Portuguese plates. You must also show you lived at least 12 months in the country you are leaving. Further conditions attach to the owner and the vehicle, so check the full eligibility with AT customs before shipping anything.

Still before completion?

The full purchase process from NIF to keys, and the real all-in cost of buying as a non-resident.