Importing a Car Into Portugal: What ISV Costs and When It Pays

Portugal charges its vehicle tax once, when a car first receives a Portuguese plate. That tax is the ISV, the imposto sobre veículos, and it explains both why used cars cost more here than in Spain or Germany and why bringing one in can still pay. It runs on engine size and CO2, it drops by a fixed percentage for every year the car has already spent on the road, and for anyone who has just moved to Portugal it can be waived completely.

The Clock Starts When You Become Resident

A car on foreign plates can sit in Portugal under suspension of ISV for up to six months in any twelve, but only if it’s registered to someone who doesn’t live here, and only the owner or close family, also non-resident, may drive it. That’s article 30 of the ISV code. A resident can use a foreign-plated car only with prior authorization from the customs office.

Residence for this purpose means 185 days or more a year in Portugal through personal and professional ties. Once you cross into that, the six months stops being the relevant number. What matters is the DAV, the customs declaration for the vehicle, and that’s due within 20 working days of the car entering the country.

Miss it and the car plus its documents can be seized or immobilized on the spot under article 73 of the RGIT, and the fine sits in a band starting at €250. People repeat a €1,500 minimum, which comes from a different subsection covering a different offense. Losing the car and its documents for weeks is the real cost.

How ISV Is Calculated

Two components, added together. The first runs on cilindrada, engine displacement in cubic centimeters. The second runs on CO2. Each is a rate multiplied by the figure, minus a fixed deduction, and both tables live in article 7 of the ISV code.

On the engine side there are three brackets, and the one that matters is the third. Up to 1,000cc you pay €1.09 per cc. From 1,001 to 1,250cc, €1.18. Above 1,250cc the rate jumps to €5.61 per cc with a €6,194.88 deduction, which is why a 2.0 liter engine carries about €5,000 of tax before CO2 enters the picture, and why Portuguese roads are full of 1.0 and 1.2 liter cars.

The CO2 side has four separate tables: petrol and diesel, each split between NEDC and WLTP homologation. Diesel rates are harsher at every level, and diesels pay a further €500 surcharge unless the certificate of conformity shows particle emissions under 0.001 g/km. Pure electrics sit outside the scope of ISV altogether, so a battery car pays nothing however expensive it is. Plug-in hybrids pay 25% of the table if they charge from the grid and clear the range and emissions conditions.

What Age Does to the Bill

Article 11 applies a percentage reduction for time already spent on the road, and since January 2025 it’s a single percentage applied to the entire tax, the engine component, the CO2 component and the diesel surcharge alike. Anything you read describing two different reduction columns was written before that change and is now wrong.

The clock starts at first registration anywhere, not at the Portuguese plate, and it stops at the end of the DAV deadline rather than the day you file. So the relevant date is 20 working days after the car crosses the border.

The bands are open at the top, so there’s no pro-rating inside one. A car one day past its sixth birthday sits in the 60% band rather than the 52% one, worth several hundred euros on a mid-size diesel. If a car is weeks away from a band change, let it sit.

The 80% band over ten years is the ceiling, and the curve is steepest early. You’re already at 52% at five years and 65% at seven, so waiting for the ten-year band to buy a car that’s otherwise worse is rarely the trade it looks like.

One route almost nobody uses: if the flat percentage over-taxes your particular car, article 11(3) lets you ask the customs director to tax it on real commercial value instead, using a formula based on trade price guides and the car’s actual depreciation. The request has to go in before the payment deadline. Say nothing and the table applies definitively.

The reduction belongs to EU and EEA plates only. A car arriving on a UK, Swiss or US plate gets no reduction at all and is taxed as new, per the tax authority’s own binding information. Only pre-1970 vehicles escape it, which makes a post-Brexit British car the expensive version of this mistake.

What That Looks Like on Real Cars

A 2018 Golf 1.5 TSI, 1,498cc, homologated at 148 g/km WLTP, imported now at eight years old. The engine component is €2,208.90, the CO2 component €328.36, so €2,537.26 before the reduction. At 65% you pay about €888.

A 2019 BMW 320d, 1,995cc, 140 g/km WLTP. Engine component €4,997.07, CO2 component €1,744.75, plus the €500 diesel surcharge, so €7,241.82. At seven years and 60% you pay about €2,897. Same age bracket, three times the tax, almost all of it from the extra 500cc.

Take that same 320d at 160 g/km instead of 140 and the pre-reduction total climbs to €10,050. After the reduction you’re paying €1,124 more for twenty grams of CO2. That’s the figure to check before you agree a price, and it has to come from the certificate of conformity, not from a brochure or a listing.

The other end of the range is a 2017 Golf GTE, 1,395cc, 38 g/km NEDC. The CO2 component comes out negative, which the code deducts from the engine component, leaving €1,379.63. As a plug-in hybrid registered in another member state between 2015 and 2020 with at least 25 km of electric range, it qualifies for a 25% rate that exists specifically for used imports, which takes it to €345. Apply 70% for nine years of use and you’re at the code’s €100 minimum. A used plug-in hybrid from that window is the cheapest thing you can legally put on a Portuguese plate short of an electric car, which pays nothing.

On the NEDC versus WLTP question, the two sets of tables are calibrated to their own scales, so a car measured under each lands in roughly the same place. What costs money is pricing a car off a number from the wrong protocol. Transition-era cars from around 2017 to 2019 carry both values on the certificate, in fields 49.1 and 49.4, and the one customs applies is the one the car was homologated under. Confirm which before you commit.

The same arithmetic across the range, each car taken at the age it would clear customs:

Three quarters comes off the V6 and €4,795 still has to be paid, because 75% of a very large number is still large. At the other end the supermini owes almost nothing, and that doesn’t help either: transport, the broker, the inspection and the registration run to €1,500 or €2,500 whatever the car is worth, which on a €7,000 city car is most of the price gap on its own.

Importing pays when the price difference beats ISV plus that overhead. On the last two rows the tax on its own is larger than most price gaps, which settles those cases before you start. On the first two the tax is zero or close to it, and the question becomes what the two markets actually charge for the same car.

The Exemption for People Moving Here

Transfer your residence to Portugal and you can bring one car in without paying ISV at all. Articles 58 to 61 set the conditions.

You need six months of residence in the country you’re leaving, evidenced by an official residence certificate showing when it started and ended, plus everyday documents like rent receipts, utility bills or payslips covering the period. You need to have owned the car for at least six months before the move, counted from the date on the ownership document. Both periods were twelve months before 2018, and the old figure is still quoted in plenty of places.

The car must have been bought under normal taxation conditions in that country, which customs presumes from a normal-series plate rather than a temporary one. The application goes in within twelve months of the residence transfer, on form 1460.1, at the customs office for your fiscal domicile. Once the exemption is granted it lapses six months later, so the car has to actually arrive and be declared inside that window.

Afterward, you can’t sell, rent, lend or give the car away for twelve months from the date the Portuguese plate is issued. Break that and the full tax falls due. The benefit is one vehicle per person every ten years, and article 65 blocks it entirely if you have unpaid tax or IUC debts at the moment of introduction into consumption, which is worth clearing beforehand.

There’s no ceiling on the car’s value and no cap on the ISV waived. On a 2.0 liter diesel that runs to thousands of euros, and the newer the car the more it’s worth.

When I moved from Barcelona I collected quotes from four providers for the exemption route. Despachante365 asked €250 plus VAT per car in broker fees. Legaliza na Hora wanted €500 plus VAT, plus about €145 in official fees afterward. legalizacao.pt quoted €596 covering their work, plates and registration, roughly €708 once the inspection and signature certification were added. The ACP quoted €460.30 per car with a certificate of conformity and €705.30 without, taxes and inspection extra.

Two practical notes from that exercise. If you’re bringing two cars and only one qualifies, claim the exemption on the one carrying the higher ISV, and remember an electric car pays nothing anyway. If both cars are registered to one spouse, the providers disagreed about whether the other spouse can claim the second under community of property: one said yes, a customs broker said only one customs office in the country accepts it and Lisbon isn’t it, and a lawyer suggested getting written confirmation from the tax authority first. Get that confirmation before you count on two exemptions.

Buying Abroad: Where the Gap Actually Is

Import sites advertise Portuguese cars as 25% to 35% dearer than German ones. Eurostat’s price level index for personal transport equipment doesn’t support that. For 2024 it puts Portugal at 103.1 against Germany’s 100.4 and Spain’s 96.2, and Eurostat notes that price dispersion in this category is low across the EU.

The gap that does exist is narrower and more specific. ISV gets capitalized into Portuguese used prices, because the first buyer paid it. Import the car yourself and you pay ISV too, but with the age reduction, so what you’re arbitraging is that reduction plus the Portuguese dealer’s margin plus the depth of a bigger market. That gap is concentrated by segment.

Big engines are where importing fails. The percentage reduction is a percentage: knock 60% off a €9,000 tax bill and €3,600 still survives, which eats the price advantage whole. High-displacement diesels and 250+ horsepower petrols are the worst candidates for an import.

Electric is where the tax stops mattering, and that cuts both ways. A Portuguese used EV never had ISV in its price either, so there’s no tax slice sitting there to arbitrage and the gap falls back to ordinary market difference. Plug-in hybrids from the 2015 to 2020 window keep their 25% rate. Mid-size premium cars in moderate CO2 bands are where German market depth counts for more than price, because in Portugal a specific spec in the right emissions band often doesn’t exist at any price: the country’s entire used stock runs under 90,000 listings against millions in Germany.

At the bottom, city cars don’t work. A gap of one or two thousand euros sits against €1,500 to €2,500 of fixed costs, so the saving lands somewhere between nothing and a few hundred. Below roughly €15,000 of Portuguese value, a non-electric import rarely clears its own overhead by enough to be worth the weeks.

Four comparisons, asking prices on both sides on 20 October 2026:

The Tesla line follows from the mechanism rather than contradicting it. No ISV ever went into a Portuguese electric car, so there’s no tax wedge between the two markets, and the 6% that’s left won’t cover a truck from Hamburg. The Golf GTE line is the opposite problem: Portugal had no 2017 or 2018 car in that mileage band at all, at any price, which is the German-depth argument in a single row.

Those are asking prices on one day and both markets negotiate, so take them as the shape of the thing rather than a quote. The shape is consistent. On a car Portugal actually stocks, the price gap is usually smaller than the cost of going to get it, and what importing reliably buys you is either the exemption, if you’re moving here, or a car that isn’t on the Portuguese market at all.

Portugal imported 120,787 used cars in 2025, up 13.7% and more than half of all light passenger registrations, so the strategy is well understood locally. ACAP, the industry association, is lobbying to have the age reduction cut back, which is a risk worth factoring into a long plan.

VAT and the Six-Month Trap

Buy from a private seller anywhere in the EU and there’s no VAT, in either country. Buy from a dealer and it depends which regime they’re on. Under the margin scheme, Differenzbesteuerung in Germany, VAT sits on the dealer’s margin only and isn’t shown separately, so you pay the sticker and nothing lands on top in Portugal. Under the normal regime, typical for ex-fleet and ex-lease cars, full German VAT at 19% is baked into the price and you can’t get it out: a zero-rated intra-EU supply needs a buyer with a VAT number, and a private individual doesn’t have one.

Two cars at the same advertised price under different regimes are not the same deal. Ask which applies before you negotiate.

A vehicle counts as new for VAT purposes if it’s under six months from first registration or has done 6,000 km or less. Either test is enough. A car that fails either one attracts Portuguese VAT at 23% on the full purchase price, settled with the customs declaration, on top of whatever was paid abroad. A seven-month-old car with 4,000 km is a new means of transport. So is a three-month-old car with 20,000 km. Combine 23% VAT with an age reduction of only 10% and the arithmetic never works. The viable window opens once the car is clearly past both tests.

Getting the Car Here

From Spain this is easy. The DGT issues a permiso temporal de circulación, the green plates, explicitly for moving a vehicle abroad for re-registration. It costs €20.61, lasts 60 days, and extends free if you ask before it expires. You need the export deregistration done first and a valid ITV. Sixty days is enough to drive the car home and use it while the Portuguese paperwork runs.

From Germany, don’t use the five-day Kurzzeitkennzeichen. The ADAC is blunt that it carries no guaranteed recognition abroad, that entry has been refused in France and the Benelux countries, and that consequences have run to seizure. Every road route from Germany to Portugal crosses France. The right document is the Ausfuhrkennzeichen, the export plate, valid up to a year with mandatory third-party insurance that works abroad. Budget €900 to €1,400 all in for the drive including the plate, insurance, fuel, tolls and a night on the road, and expect to lose three or four days.

Trucking is the alternative and from Germany it costs roughly the same as driving. One operator’s published September 2026 table puts Frankfurt to Portugal at €1,000 and Munich at €1,100, both before 23% VAT, with Madrid at €550. Quote three carriers, because the spread between operators on these routes is wide.

The Paperwork and What It Costs

The sequence runs: buy the car, bring it in, get the homologation sorted at IMT and pass the inspection, file the DAV with customs, pay the ISV, collect the registration certificate from IMT, then register ownership at the conservatória.

Before you pay for any car, run one check. Look at the foreign registration certificate for field K, the type-approval number, and field D.2, the model and version designation. If either is blank, you need the certificate of conformity from the manufacturer, and you need to confirm it’s obtainable for that exact VIN first. Retroactive issue only works if the model holds an EU type approval, which cars originally built for the American or Japanese markets usually don’t, even when they’re sitting on a German plate today. For a Spanish car, the ficha ITV that comes with the permiso de circulación is the document IMT wants.

The official costs are small next to the tax. The DAV itself is free, due within 20 working days of entry, with the ISV payable within 10 working days of assessment. IMT charges €45 for the plate attribution where there’s a certificate of conformity or an existing national homologation, and €165 without either. The category B inspection runs €76.03 plus VAT, so €93.52, under the tariff in force since January 2026, and the certificate is valid 90 working days. Registration at the conservatória is €55, or about €47 filed online, and it doubles if you’re late. Plates come from a private supplier for a few tens of euros. The certificate of conformity is priced by the manufacturer, with ADAC’s own spot checks landing between €70 and €180.

Brokers charge €200 to €500 if you buy and transport the car yourself and hand over only the Portuguese paperwork, and €1,200 to €2,500 for a turnkey service that sources, inspects, transports and registers it.

IUC Afterward

The annual circulation tax splits on one date. Cars first registered anywhere in the EU or EEA up to 30 June 2007 fall into category A, taxed on engine size, fuel and age with no CO2 element at all. Anything registered after that date falls into category B, taxed on engine size plus CO2, with a multiplier of 1.15 for cars from 2010 onward and a diesel surcharge on top.

The detail that matters for imports: since 2020 it’s the foreign first-registration date that governs, not the date the Portuguese plate was issued. Before that change, importing a 2005 car landed you in the expensive category B. Now a car first registered before July 2007 sits in category A, where a 1.8 liter petrol pays €158.31 a year against several hundred under category B. Electric cars pay no IUC.

In the year you register, IUC falls due within 30 days of the end of the registration deadline. After that it’s the anniversary month of the plate, until January 2027, when a new decree moves everyone to a single April assessment with instalments for larger amounts.

When It’s Worth It

If you’re moving to Portugal and you’ve owned your car for six months, bring it. The exemption has no value ceiling, and on anything bigger than a supermini it’s worth more than the entire cost of the move.

If you already live here and you’re shopping, the price case is thinner than the import sites make it sound. It holds up on 2015 to 2020 plug-in hybrids with their 25% rate, and it holds up whenever Portugal doesn’t stock the car you want, which happens more often than the size of the country suggests. Big diesels fail on the tax, city cars fail on the fixed costs, and anything under six months old or 6,000 km fails twice over.

And whatever the car, price the tax before you price the car. Pull the CO2 figure off the certificate of conformity, check which protocol it was homologated under, find the band it falls in, then apply the age reduction for the date the car will clear customs rather than the date you’re standing in the seller’s driveway. The difference between doing that and guessing is usually larger than the saving you’re chasing.

I’ve been based in Cascais since 2026. The rest of the setup, from residence certificates to utilities, is in the full guide to moving here as an EU citizen, and the insurance side, including how to carry your no-claims history across from another EU country, is covered there too.

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