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Annual IMI
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About this calculator
Work out the annual IMI on a property you hold, including the municipal rate, rural land and the IMI familiar deduction its conditions actually allow.
What the property costs you every year, not once.
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 owners of property in Portugal who want the annual IMI bill and the deductions their own case actually allows.
What it covers
- Municipal rate
- Rural land
- IMI familiar
- Ownership share
Questions about this calculator
What sets the amount?
The municipal rate applied to the property's tax value, with different treatment for rural land. Enter the property and the calculator applies the rate.
What is IMI familiar?
A deduction for households with children, granted on conditions the municipality applies. The calculator includes it only where those conditions hold, never as a flat discount.
I own only a share of the property - how is it computed?
By ownership share: your bill follows the fraction you hold, and the calculator takes that share into account rather than charging you the whole.
Who sets the rate I pay?
Your municipality, within limits the law sets - which is why the same house can be taxed differently across the border. The calculator takes the rate you enter and shows what it means.
Read the rules behind it
Related calculators
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.