Lombardy Car Tax 2026: How It Works and Who Pays When You Buy a Used Car

Why the car tax bill matters before you buy or sell a used car in Lombardy

Car tax, known in Italy as bollo auto, is the kind of cost that is easy to forget when shopping for a used vehicle, yet it is also one of the few that can turn into an unpleasant surprise right after the paperwork is signed. Lombardy, home to Italy's largest vehicle fleet, enters 2026 with two changes that anyone buying or selling a used car in the region needs to understand: the end of instalment payments for newly registered vehicles, and a set of exemptions for electric and hybrid cars that makes the powertrain choice even more decisive for the final bill. Here is how the tax works today, what changed compared with previous years, and, the question that trips up most private sales, who actually has to pay when a car changes hands.

How the Lombardy car tax is calculated

As everywhere else in Italy, the amount owed is worked out by multiplying the engine's power in kW by a regional rate that rises with the vehicle's Euro emissions class: older, more polluting cars (up to Euro 4) pay a higher rate than Euro 5 and Euro 6 models. The exact figure for any given number plate is available through the ACI portal and the Lombardy regional government website, both of which remain the official references to check before any purchase. A mistaken assumption about the Euro class or declared power can inflate the annual bill by several tens of euros, a gap worth confirming before agreeing a price on a used car.

Electric cars: the one region with a permanent, no-limits exemption

Lombardy runs one of the most generous electric-vehicle policies in the country: a total, permanent exemption from car tax for any vehicle powered exclusively by electricity, with no power cap and no expiry tied to the car's age. That is a meaningful difference for used-car shoppers. In several other regions, the EV exemption lasts a fixed number of years from first registration, after which the car reverts to paying tax like a combustion vehicle. Lombardy sets no such limit, so buying a seven- or ten-year-old used EV still comes with zero car tax, a factor worth folding into any comparison between a used electric car's asking price and an equivalent petrol or diesel model.

Hybrids: a 50 percent discount for five years, then full price

Hybrids get a more nuanced treatment. Mild-hybrid, full-hybrid and plug-in hybrid vehicles registered as new receive a 50 percent discount on car tax for the first five years from first registration. Once that window closes, the car reverts to the full rate calculated on its declared kW, exactly like a conventional vehicle. Anyone buying a used hybrid should check the first-registration date on the vehicle's logbook, known as the libretto: a four-year-old hybrid still carries one or two years of residual discount, while a six-year-old one carries none at all, a detail that is easy to miss in a private sale and well worth asking the seller about directly.

What changed in 2026: no more instalment payments, but the direct-debit discount survives

The most concrete 2026 change concerns how the tax is paid: for vehicles registered from 1 January 2026 onward, splitting the car tax into instalments across the year is no longer allowed, it must be paid in a single annual payment. The 15 percent discount for owners who set up automatic bank direct debit remains in place, equivalent to roughly two free months a year. Deadlines still follow the established national rule: payment is due by the last day of the month following the month in which the previous tax period expired, calculated from the first-registration date or the last payment made.

Who pays the tax when a used car changes hands

This is the question that generates the most confusion in a private sale: does the seller or the buyer pay the bollo? The answer has nothing to do with the date on the sale contract, it depends on the tax's expiry date relative to when the ownership transfer is registered with the PRA, Italy's vehicle registry. If the tax expires before the transfer is registered, the obligation falls entirely on whoever was the registered owner on the first day of that tax period, typically the seller. If it expires after the transfer, the new owner is responsible. There is no joint liability between the two parties; each is only on the hook for the period during which they were the registered owner. That is exactly why, before signing any ownership transfer on a used car in Lombardy, it pays to check the car's tax status through the ACI portal or the Revenue Agency, so the new buyer does not unknowingly inherit a penalty that was never theirs to pay.

What happens if you pay late: ravvedimento operoso

Late payers can still limit the damage through Italy's voluntary-disclosure mechanism, known as ravvedimento operoso, which reduces penalties compared with a formal tax assessment. Within 14 days of the deadline, the penalty is 0.1 percent per day; between day 15 and day 30 it rises to 1.5 percent; between day 31 and day 90 it reaches 1.67 percent; and between day 91 and one year it climbs to 3.75 percent, plus statutory interest of 1.6 percent a year calculated daily. Beyond one year, the voluntary-disclosure option is no longer available and the penalty jumps to 30 percent of the amount owed, a stark gap compared with settling on time.

A five-minute checklist before you sign

Before closing a used-car purchase or sale in Lombardy, four quick checks avoid most problems: confirm the Euro class and kW figure on the logbook to estimate the correct amount; check whether the car is fully electric (permanent exemption) or a hybrid still within its five-year window (50 percent discount); request the car's up-to-date tax status through ACI before signing the ownership transfer; and, for a used hybrid, work out exactly how many discount years remain. It takes five minutes and can save hundreds of euros in surprises after the signature.

Further reading

1. AutoScout24, Bollo auto Lombardia 2026: calcolo, pagamento, esenzioni e scadenza
2. Regione Lombardia, Esenzione bollo per acquisto auto a basse emissioni e agevolazioni per veicoli ibridi - Anno 2026
3. Sky TG24, Bollo auto 2026: scadenze, come si calcola e sanzioni
4. CalcoloBollo-auto.it, Sanzioni Bollo Auto Non Pagato 2026: Importi e Ravvedimento
5. Virgilio Motori, Passaggio di proprieta e bollo auto: chi paga cosa e in quali tempi
6. NewsAuto, Bollo auto ibride ed elettriche, agevolazioni nel 2026 per regione