Spain car tax calculator (IVTM)

Spain's IVTM is a municipal tax: a state base amount set by fiscal horsepower, multiplied by your town's coefficient of up to two.

Worked example · IVTM anual

With Potencia fiscal of 9, this model computes IVTM anual of 68.16 EUR. See the full working.

✓ Verified against 3 self-test cases Updated for 2026 · sources checked 2026-08-02

How IVTM (municipal vehicle tax) in Spain is calculated

The IVTM (impuesto sobre vehiculos de traccion mecanica) is Spain's annual car tax, collected by the municipality. It starts from a state base table keyed to fiscal horsepower, from under 8 CV to 20 CV and above.

Each town multiplies that base by a coefficient of up to two, so the same car costs up to twice as much in a big city as in a small one. Pick the minimum, a middling or the maximum coefficient from the dropdown, or enter the exact one from your ayuntamiento's ordenanza fiscal. Electric and eco vehicles often get bonuses of up to 75%. Estimate, not tax advice.

Worked example

ShowHide the full working: 2 inputs, 3 computed steps
9 CV, coefficient 2 (Madrid)
Inputs
Potencia fiscal (CV)9
Coeficiente municipalCoeficiente máximo legal — 2,00 (Madrid, Barcelona y otras grandes ciudades)
Computed by the engine
Coeficiente aplicado2
Cuota base estatal ✓ pinned34.08 EUR
IVTM anual ✓ pinned68.16 EUR

Every computed row comes from the engine, run on the inputs above. Rows marked ✓ pinned are also fixed by a published self-test, so a change to the model that moved them would fail its own tests.

Frequently asked questions

How much is IVTM for a 9 CV car?

The state base for 8-11.99 CV is 34.08 EUR; a city applying the maximum x2 coefficient charges about 68 EUR. Set your town's coefficient to refine it.

Why does IVTM vary by town?

The base amount is national, but each municipality multiplies it by a coefficient up to two, so the tax differs between towns for the same car.

Are electric cars cheaper?

Many municipalities grant a bonification of up to 75% for electric and low-emission cars; check your town's ordinance.

Sources

Estimate. Not tax advice. The verification badge means the model reproduces the stated formula through 3 self-test cases; the sources support that the formula matches the rules.

Check the arithmetic yourself: how this calculator is verified — the formula behind every derived value, the 3 test cases the engine reproduces, and what the badge does and does not claim. Also available as machine-readable JSON.

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