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Vehicle & IUC
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About this calculator
Calculate IUC for cars, light-goods vehicles and motorcycles, then analyse purchase VAT and depreciation.
Annual vehicle tax, plus the acquisition context.
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 vehicle owners who want this year's IUC, and for buyers who want to see what a car costs beyond its price tag.
What it covers
- Categories A/B/C/E
- Fuel & CO₂
- Purchase VAT
- Autonomous tax
Questions about this calculator
Which vehicles does it cover?
The categories that cover passenger cars and light goods vehicles - A, B, C and E - with motorcycles handled in their own class.
What decides the amount?
Engine displacement, fuel and CO₂, and the vehicle's age. The 2026 IUC amount payable is computed from those, not from the number plate.
Why does it also look at purchase VAT and autonomous tax?
Because ownership decisions rarely stop at the annual tax: VAT on the purchase and the autonomous rates that hit company cars are part of the same picture.
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.