Denmark car tax calculator (grøn ejerafgift)
Denmark car tax calculator (Denmark's green ownership tax is based on fuel efficiency in km per litre — thirstier cars pay much more.
Worked example · Årlig afgift
With Brændstoføkonomi of 18, this model computes Årlig afgift of 800 DKK. See the full working.
⚠ Illustrative rates Updated for 2026 · sources checked 2026-08-02
How Grøn ejerafgift (green ownership tax) in Denmark is calculated
Denmark's recurring car tax (gron ejerafgift) rewards efficiency: it is based on how many kilometres the car does per litre, so an economical car pays little and a thirsty one pays a lot.
Diesels carry an equalisation surcharge, and cars registered from mid-2021 use a CO2-based scale. Illustrative rates. Estimate, not tax advice.
Worked example
ShowHide the full working: 1 input, 1 computed step
| Inputs | |
|---|---|
| Brændstoføkonomi (km/l) | 18 |
| Computed by the engine | |
| Årlig afgift ✓ pinned | 800 DKK |
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 for a car doing 18 km/l?
Around 800 DKK per half-year band in the illustrative table; a car doing 12 km/l pays roughly double.
Do diesels pay more?
Yes — a diesel equalisation surcharge is added.
Is it based on emissions?
On fuel efficiency for older cars, and a CO2 scale for cars registered from mid-2021.
Sources
- Motorstyrelsen · checked 2026-08-02
Estimate. Not tax advice. The rates in this calculator are illustrative: they reproduce the shape of the charge through 2 self-test cases, but they are not the official schedule, so the amount shown will not match your bill. Use the official source above for that.
Check the arithmetic yourself: how this calculator is verified — the formula behind every derived value, the 2 test cases the engine reproduces, and what the badge does and does not claim. Also available as machine-readable JSON.
Related calculators
Sweden Fordonsskatt (vehicle tax) · Norway Trafikkforsikringsavgift (traffic insurance levy) · Germany Kfz-Steuer (car tax) · Luxembourg Taxe véhicule (vehicle tax) · Finland Ajoneuvovero (vehicle tax)
Also for Denmark: Denmark Løn efter skat (salary after tax) · Denmark Selvstændig (self-employed) · Denmark Moms (VAT) · Denmark Ferie (annual leave)
All Denmark calculators · All calculators
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