Owning Portuguese Property as a Non-Resident 2026: IMI, IRS on Rentals and Sale Mais-Valias
Quick answer: Owning Portuguese property as a non-resident triggers annual IMI to the municipality, IRS taxation on rental income at the special 28% rate (or aggregation with progressive rates if EU/EEA resident) and mais-valias on sale — 50% of the gain taxed under treaty rules. A fiscal representative is mandatory outside the EU/EEA for asset-holders. Sales from abroad are possible by power of attorney.
Key takeaways
- Annual IMI to the municipality.
- 28% IRS on rental (or EU/EEA aggregation).
- Mais-valias on sale.
- Fiscal representative required outside EU.
- Tax treaties avoid double taxation.
What changes in 2026: AT cross-checks rentals against Alojamento Local registrations
The Autoridade Tributária e Aduaneira (AT) has expanded data-matching in 2026 between the Portal das Finanças, the Registo Nacional de Alojamento Local (managed by Turismo de Portugal), municipal records and online platforms (Airbnb, Booking, Vrbo) under DAC7 reporting. Non-resident owners with under-declared rental income face higher detection risk than ever. The legal frame remains the Código do IRS (CIRS), Código do IMI, the Lei do Alojamento Local (Decreto-Lei 128/2014 amended several times), and the EBF (Estatuto dos Benefícios Fiscais) for any reliefs.
For non-resident property owners, the standard package is: annual IMI on the property’s Valor Patrimonial Tributário (VPT); 28% IRS flat on net rental income (or progressive aggregation for EU/EEA residents who elect); mais-valias on sale at 100% of the gain (post-Hollmann reform 2023) at progressive rates or 28% by election; AIMI (Adicional ao IMI) on portfolios above thresholds; and the requirement to appoint a representante fiscal if outside the EU/EEA.
Annual IMI: rates, exemptions and direct debit
IMI (Imposto Municipal sobre Imóveis) is paid annually to the município where the property is located. Rates: 0.3%-0.45% for urban property in most municípios (each council sets its rate within this band, fixed in November for the following year), 0.8% for rural property, 7.5% punitive for properties in tax havens. The base is the VPT, fixed by AT and updatable every 3 years on request via Modelo 1-IMI.
Payment dates: 31 May (single instalment if <€100), 31 May + 31 August (2 instalments if €100-500), 31 May + 31 August + 30 November (3 instalments if >€500). Direct debit is strongly recommended — non-residents who miss a payment incur juros de mora (interest of about 4-5%) plus coima up to 10%. AT collection action can reach the property under the Lei Geral Tributária if unpaid for 6+ months.
IMI exemptions: 3 years (extendable to 5) for own permanent dwelling acquired with mortgage under means-tested rules; partial exemption for buildings classified as imóvel de interesse público; reduced rate for energy-efficient renovations. Most exemptions are residency-based and lapse on emigration.
Rental income: 28% flat or aggregation for EU/EEA
Non-resident rental income from Portuguese property is taxable in Portugal at 28% flat by default. Allowable deductions: IMI, condominium fees (despesas de condomínio), repairs and maintenance (with invoices), insurance, energy certification, and (since 2018) any costs of furnishing if listed and proportional. Depreciation is not deductible in the standard regime.
EU/EEA non-residents may elect aggregation under article 71-A CIRS, taxing the net rental at progressive Portuguese rates (13.25%-48% plus solidarity 2.5%-5%) and benefiting from any deductions and credits otherwise available to residents. The election is made on Modelo 3 Anexo F. For lower-bracket landlords this is often advantageous; for higher-bracket it usually is not. Run the numbers in your contabilista’s spreadsheet each year.
Annual tax compliance calendar
| Tax / form | Trigger | Deadline | Where |
|---|---|---|---|
| Modelo 3 IRS (Anexo F + J) | Any Portuguese-source income (rental, mais-valias) | 1 April – 30 June year+1 | Portal das Finanças |
| IMI (3 instalments) | Property held on 31 December year-1 | 31 May / 31 August / 30 November | Multibanco from AT note de liquidação |
| AIMI (Adicional ao IMI) | VPT >€600,000 portfolio | 30 September | Multibanco from AT |
| Modelo 1-IMI | VPT update / improvements | 60 days from event | Portal das Finanças |
| RNAL annual declaration (Alojamento Local) | Active AL registration | 30 June year+1 | RNAL portal |
| Representante fiscal acceptance | Non-EU/EEA owner | 60 days from change | Portal das Finanças |
AIMI: the wealth-tax surcharge on real estate
AIMI (Adicional ao IMI) applies to portfolios with combined VPT above thresholds: €600,000 individual / €1.2m couple opting for joint return / €600,000 per company-owner. Rates: 0.7% on the slice 600k-1m, 1% on 1m-2m, 1.5% above 2m. AIMI is paid in September, separately from IMI. Properties classified as commercial or industrial (afetação comercial) are excluded; the surcharge targets primarily residential and unbuilt land.
Non-residents are subject to AIMI on the same basis as residents, applied to Portuguese property only. Joint owners can elect joint AIMI assessment to share the €1.2m threshold. The collection is annual and integrated with IMI.
Selling as non-resident: mais-valias on Portuguese property
Post-2023 (Hollmann reform), non-resident sellers are taxed on 100% of the mais-valia on Portuguese property, not 50% as for residents. The rate is 28% flat by default, or progressive (13.25%-48% + solidarity) on the gain alone, or aggregation for EU/EEA residents combining all Portuguese-source income — the most favourable election is made on Modelo 3 Anexo G of the move-year return.
Calculation: sale price minus indexed acquisition cost (using AT’s coeficientes de desvalorização monetária published yearly) minus documented capital improvements within 12 years minus direct sale costs (estate agent, energy certificate). Reinvestment exemption for the own permanent dwelling under article 10(5) CIRS does not apply once you are non-resident — yet another reason to plan the sale before changing residency.
Alojamento Local and short-term rentals
Properties rented short-term must be registered on the Registo Nacional de Alojamento Local (RNAL) before listing on Airbnb, Booking or Vrbo. Categories: Apartamento, Moradia, Estabelecimento de Hospedagem, Quartos. Each município has its own quotas and conditions, with Lisbon, Porto and Madeira historically restricting new AL registrations in saturated zones. AT taxation differs slightly: AL income can be reported as Categoria B (self-employment) with a simplified regime applying coefficient 0.35 (or 0.50 in tourist areas) instead of full Anexo F; this is often more tax-efficient.
Online platforms now report income directly to AT under DAC7, so under-declaration is detected quickly. Tourist tax (taxa turística municipal — €1-4 per night per guest in most large municípios) is collected by the host and remitted monthly via Modelo 51 to the município.
Common mistakes that cost non-resident owners
No representante fiscal (non-EU/EEA owners). Fines €75-7,500 under RGIT plus undelivered AT correspondence leading to default judgments. Appoint within 60 days.
Forgetting to elect aggregation. EU/EEA owners in lower brackets pay 28% flat instead of progressive — a common over-payment. Run the spreadsheet each year.
Out-of-date VPT. If VPT is much lower than market, IMI is low (good) but mais-valias on sale can be re-assessed. If VPT is much higher than market, IMI overpayment continues. File Modelo 1-IMI to refresh after major works.
Missing AL platform DAC7 disclosures. Airbnb/Booking report your rentals to AT — failing to declare matches automatically. Always declare; use the simplified Categoria B regime if eligible.
FAQ
Fiscal representative mandatory?
Yes for residents outside the EU/EEA holding assets in Portugal.
Sale from abroad?
Yes — via notarised power of attorney to a Portuguese notary.
Aggregation?
EU/EEA residents may opt into progressive IRS rates instead of the 28% special rate.
IMT?
Paid by the buyer at acquisition.
Tax treaty?
Prevents double taxation between Portugal and the new country of residence.
Do I need a fiscal representative if I own property as a non-resident?
Yes if you reside outside the EU/EEA. EU/EEA residents are exempt under EU law. The representante fiscal must be a Portuguese tax resident, accepts service of AT correspondence, and files online via the Portal das Finanças. Failure to appoint within 60 days of becoming non-resident triggers fines €75-7,500 under the RGIT.
What is the difference between 28% flat and aggregation on rentals?
28% is the default flat rate on net rental income for non-residents. EU/EEA non-residents may elect to aggregate the net rental to other Portuguese-source income at progressive rates 13.25%-48% with solidarity. The election is annual on Modelo 3 Anexo F — usually beneficial for lower-income landlords, often not for higher brackets.
Is AIMI charged to non-residents?
Yes — AIMI applies to non-residents on the VPT of their Portuguese real estate above €600,000 individual / €1.2m joint. Rates 0.7%-1.5% by slice. Commercial-classified properties are excluded. Payment is annual, separate from IMI, due 30 September.
How can non-residents pay IMI from abroad?
Most non-residents set up direct debit (autorização de débito direto) on a Portuguese non-resident bank account at CGD, Millennium BCP, Novo Banco, Santander Totta or BPI. Alternatively, pay via Multibanco reference using the AT note de liquidação from the bank’s online portal abroad. Missing IMI triggers juros de mora (~4-5%) plus coima.
Appoint a fiscal representative and a property manager for smooth AT correspondence from abroad.
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See also: All Portugal moving guides.