TLDR: Portugal has rolled out a wave of property tax changes in 2026 that hit non-resident buyers and sellers hardest, from a new flat transfer tax rate to tougher worldwide income disclosure rules tied to capital gains. If you own or plan to buy property in Portugal and don’t live there, the paperwork just got heavier and the costs did too.
A New Flat Rate Changes the Math for Buyers
For years, non-residents paid the same progressive municipal transfer tax, known as IMT, as Portuguese residents. That changed with the Construir Portugal housing package, approved by Parliament in February 2026 and implemented through Decree-Law 97/2026 on May 20.
Now non-resident buyers of residential property pay a flat 7.5% IMT rate, no matter the property’s value. Residents still work through the old progressive scale, which can run lower depending on the purchase price. For a foreign buyer picking up a villa in the Algarve or an apartment in Lisbon, that flat rate often means an extra 10,000 to 12,000 euros compared to what a resident would pay on the same home.
Why the Government Made the Switch
Officials framed the change as part of a broader housing affordability push, one aimed at cooling demand from foreign buyers in a market where locals have been priced out of major cities for years. Whether it actually slows purchases or just raises the cost of entry is still an open question, and tax lawyers in Lisbon expect legal challenges on EU free movement of capital grounds.
Worldwide Income Disclosure Isn’t Optional Anymore
The transfer tax change gets the headlines, but the disclosure rules matter just as much for anyone selling. Since 2023, non-residents selling Portuguese property have had to report their worldwide income on the Portuguese tax return, not because Portugal taxes that foreign income directly, but to calculate the correct progressive rate for the capital gains owed.
That requirement used to apply only to residents. Now it’s mandatory for non-residents too, confirmed through a Tax Authority circular letter that closed off any ambiguity left by earlier case law.
What Counts as Worldwide Income Here
The disclosure covers salary, rental income, pensions, investment returns, basically anything earned anywhere, declared through Annex J of the Portuguese tax return. It’s a disclosure obligation, not an extra tax bill on the foreign income itself. But getting it wrong, or skipping it, can mean the wrong tax bracket gets applied and a bigger bill than expected.
Anyone who sold a Portuguese property in 2025 has until June 30, 2026 to file.
The Fiscal Representative Requirement Catches People Off Guard
Since Brexit, UK nationals and other non-EU or non-EEA residents who own Portuguese property generally have to appoint a fiscal representative inside Portugal. This person or firm handles correspondence with the tax authority on the owner’s behalf and is often the first point of contact if a filing deadline gets missed.
It sounds like a formality until a letter from the Portuguese tax office goes unanswered because nobody checked the mailbox. Property lawyers in Porto say missed notices from the AT, Portugal’s tax authority, are one of the most common reasons non-resident sellers get hit with penalties they didn’t see coming.
Where This Trips Up Foreign Owners
Most disputes trace back to the same handful of mistakes. People assume their Portuguese lawyer automatically handles tax representation, which isn’t always true. Others let a representative appointment lapse after a property sale closes, not realizing ongoing obligations like the capital gains declaration still apply. And some simply don’t know the representative requirement exists until a penalty notice shows up.
Capital Gains Relief Came With Strings Attached
Non-residents did get one piece of good news buried in all this. Since January 2023, they’re taxed on only 50% of their property gain instead of the old flat 28% on the full amount, the same treatment residents get. For many sellers, that cuts the effective rate down to somewhere between 6% and 24%, depending on their overall income bracket once that worldwide income gets factored in.
But there’s a catch for anyone from a country on Portugal’s tax haven blacklist. Those sellers still pay 35% on the entire gain, with no exclusion at all. And the reinvestment exemption that lets residents roll gains into a new home largely doesn’t apply to non-residents, so selling and buying again in Portugal doesn’t offer the same relief it would for someone who lives there.
What This Means Going Forward
Put it together and the pattern is clear. Portugal wants more visibility into who owns property within its borders and what they’re worth, and it’s willing to charge non-residents more to get it. For foreign buyers and sellers, that means budgeting for the 7.5% transfer tax upfront, keeping a fiscal representative actually responsive, and treating the worldwide income disclosure as a real legal obligation rather than paperwork to skim through. The tax breaks are still there for non-residents willing to do the filing properly. The room for sloppy compliance just got a lot smaller.
