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Property sale
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About this calculator
IRS on selling a Portuguese property: the gain after inflation and costs, how much of it is taxable, and what main-home reinvestment relieves.
What the sale actually leaves you with.
Free, no account and no card. Every figure shows the rule it came from, for the 2026 income year.
Who this calculator is for
For sellers of Portuguese property who want to know how much of the gain reaches the tax return and what survives it.
What it covers
- Mais-valias
- 50% inclusion
- Reinvestment relief
- Pre-1989
Questions about this calculator
How much of the gain is taxed?
As a rule, half: mais-valias enter IRS at 50% inclusion, after inflation and documented costs are deducted. The calculator shows the taxable part.
Does reinvesting help?
Reinvestment in a main home can relieve the gain where its conditions are met. The calculator applies the relief your case qualifies for, and none other.
I bought before 1989 - am I taxed on everything?
No. Property acquired before the 1989 rules is treated differently, and the calculator carries that case instead of taxing the whole gain.
What counts as a documented cost?
The acquisition price and the expenses the rules recognise - deeds, brokerage where invoiced, and capital improvements you can prove. Deducting them is what shrinks the taxable gain, so the calculator asks for them.
Read the rules behind it
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An estimate from the inputs given, not a filed position. Anything submitted to the Autoridade Tributária or Segurança Social through Taxovate is reviewed by a qualified accountant first.