It will mean that “between 15,000 and 20,000” vehicle owners with license plates registered in December will have to pay the tax twice in three months or less — the first time by the last day of this year and the second time shortly after, at the beginning of 2026.

“This amount covers both cars that are in circulation and those that are still in showrooms waiting for a buyer, which are also subject to the tax,” explains Nuno Silva, president of the Portuguese Association of Automotive Trade, quoted by Jornal de Notícias.

The government's plans, which still need to receive the green light from Parliament, foresee that the IUC (Vehicle Tax) of up to 100 euros will be paid in one lump sum in February, while the tax above that amount can be divided into two instalments, to be paid by October.