ISV calculator
How much ISV will you pay?
ISV (Imposto Sobre Veículos) is the vehicle tax paid once, when a car is legalised in Portugal. Using the 2026 tables, the amount appears as you answer — with a breakdown of each part and no contact details required.
ISV calculator 2026
Work out the ISV on your car
Estimated ISV—
See the breakdownWorked examples
Three cars, three ISV bills.
Illustrative cases using the 2026 tables, to show what drives the tax: the age, the emissions test and, for plug-ins, the electric range.
-
Age matters
2019 diesel estate
- Used, from the EU
- first registered 03/2019
- 1,968 cm³
- 127 g/km WLTP
- particulates < 0.001 g/km
- Tax without reduction (as new)
- €5,744.83
- Reduction for 7 years and 7 months of use (65%)
- −€3,734.14
- ISV payable
- €2,010.69
Pays €3,734.14 less than the same car would new.
Open this example in the calculator -
NEDC test
2017 petrol compact
- Used, from the EU
- first registered 09/2017
- 1,395 cm³
- 125 g/km NEDC
- Tax without reduction (as new)
- €2,297.13
- Reduction for 9 years and 1 month of use (75%)
- −€1,722.85
- ISV payable
- €574.28
Pays €1,722.85 less than the same car would new.
Open this example in the calculator -
Electric range matters
2021 plug-in SUV with 42 km of range
- Used, from the EU
- first registered 05/2021
- 1,969 cm³
- 48 g/km WLTP
- 42 km electric range
- Tax without reduction (as new)
- €4,829.31
- Reduction for 5 years and 5 months of use (52%)
- −€2,511.24
- ISV payable
- €2,318.07
With 50 km or more of electric range, it would pay 25% of the table: €579.52 — €1,738.55 less.
Open this example in the calculator
Illustrative examples — not client cases. Calculated on 24/10/2026 with the ISV Code in force; in the calculator, the car's age counts up to today. The amount for each car is set by the Tax and Customs Authority.
How it is calculated
What goes into the figures
The calculator follows the ISV Code in force. In short:
- For cars, the tax adds an engine size component and an environmental component (CO₂ emissions, under the WLTP or NEDC test). If the environmental component is negative, it is deducted from the engine size component.
- Diesel cars pay an extra €500, unless the COC shows particulates below 0.001 g/km.
- Used cars registered in another European Union country get a 10% to 80% reduction, depending on their age.
- Plug-in hybrids with 50 km or more of electric range and emissions below 50 g/km (80 g/km if type-approved under Euro 6e-bis) pay 25%. Electric cars pay no ISV.
- Light commercials pay under table B, at 10% to 100% depending on the seats, the load area and the drive. Motorcycles pay a fixed amount by engine size.
- For cars and light commercials, the tax is never less than €100.
For used cars from the EU, if the tax from the tables is higher than what results from the car's market value, you can ask customs to calculate it with the formula in article 11(3) of the ISV Code. Ask us whether it applies to your case.
Sources (in Portuguese, accessed on 24/10/2026): Código do ISV, versão consolidada (AT) · Lei n.º 73-A/2025 — Orçamento do Estado para 2026
Costs
What the estimate does not include
ISV is only one of the three parts of the cost of legalising a car.
Tax
Mainly ISV, paid once when the vehicle is legalised. It is assessed by the Tax and Customs Authority (AT).
You can estimate it in the calculator.
Fees and expenses
Inspection, type approval, plates and registration. They vary with the vehicle and the process.
We list them in the quote.
Pormenor's fees
Our work preparing and following the process.
Quote after looking at your case.
How are the costs worked out?
There are three different parts: the tax (for example, ISV), assessed by the Tax and Customs Authority (AT); the fees and expenses of the procedures, such as inspection, registration and plates; and Pormenor's fees.
Once we have looked at your case, we give you a quote for our services and tell you what other expenses to expect. The calculators estimate the tax, not the full quote.
Is the calculator result the final ISV?
Not necessarily. A calculator gives an estimate from the data you enter. The tax is assessed by the Tax and Customs Authority (AT) during the legalisation process, based on the vehicle's official data.
Where do I find the engine size and CO₂?
On the registration document from the country of origin and on the COC. Check whether the CO₂ value was measured under the WLTP or the NEDC standard — the calculators ask for this.
Contact
Want the full quote?
Tax, charges and expenses, and our fees — in a single quote for your vehicle.