IVTM in Your First Year: How the Tax Is Prorated When You Register an Imported Car Mid-Year

The general rule: quarters, not days

For a vehicle's first acquisition or registration, the IVTM accrual period runs from the first day of the calendar quarter in which the registration takes place through 31 December of that year. The tax is not calculated day by day; it is prorated in whole quarters. Register in February (first quarter) and you generally owe close to the full annual amount for that year. Register in October (fourth quarter) and you typically owe only the final quarter's share. This same quarterly logic applies in reverse when a vehicle is permanently deregistered or stolen before the fourth quarter of a year.

• Registration in Q1 (Jan-Mar): close to a full year's IVTM due for that calendar year.
• Registration in Q2 (Apr-Jun): roughly three-quarters of the annual amount.
• Registration in Q3 (Jul-Sep): roughly half the annual amount.
• Registration in Q4 (Oct-Dec): roughly a quarter of the annual amount.

Why the exact mechanics still depend on your town hall

The proration principle comes from national law, but how a given municipality bills it in practice varies. Some town halls issue a prorated bill for the remainder of the registration year straight away, calculated and charged shortly after the DGT notifies them of the new registration. Others fold the first partial year into the following year's standard annual campaign rather than issuing a separate mid-year bill, effectively catching up the prorated amount alongside the next full year's tax. Ask your specific town hall's tax office how they handle a first-year registration bill so you know whether to expect a separate charge shortly after registering or a combined bill the following spring.

What this means for budgeting your import

When you are working out the total first-year cost of importing a car — ITV, IEDMT or the transfer-of-residence exemption, ITP if bought privately, DGT registration fees, and IVTM — the IVTM component in year one is almost always smaller than the sticker figure quoted for a full annual tax, simply because of proration. Do not budget a full year's IVTM for a car you plan to register in September; budget roughly a quarter of it instead, then the full annual amount from the following calendar year onward.

Timing your registration deliberately

Because the tax accrues from the start of the quarter of registration rather than the exact day, there is a small, legitimate incentive to complete the DGT registration near the start of a new quarter rather than the last week of the previous one, if your paperwork and ITV timing allow some flexibility. Registering on the 29th of a month rather than waiting until the 2nd of the next month, when both dates are realistically available, can occasionally mean the difference between owing tax from that quarter or the next one — worth keeping in mind when you are scheduling the final registration appointment.

Frequently asked questions

Do I need to request the proration myself, or is it automatic?

It is generally applied automatically by the town hall's tax system once the DGT registration data reaches them, since the accrual rule is set in national law. You do not need to file a separate request for the first-year proration itself, though you should still confirm the amount billed matches the quarter you actually registered in — billing errors do happen, especially around quarter boundaries.

Does proration also apply to any environmental discount I qualify for?

The discount, where your town hall offers one, is typically applied as a percentage of whatever amount is due for that period, including a prorated first-year amount — but confirm this with your specific town hall, since discount schemes are set locally and some may only apply from the following full tax year.

What if I import and register the car, then move to a different town hall within the same year?

IVTM for a given calendar year is generally due to whichever municipality held the registration as of 1 January of that year (or, in a first-registration year, the municipality at the time of registration); a mid-year change of address usually only affects which town hall bills you starting the following calendar year, not a mid-year transfer of the current year's liability.