New Zealand rego & RUC calculator
New Zealand rego & RUC calculatorNew Zealand vehicle cost is the annual licence (rego) plus Road User Charges (RUC) for diesel and electric vehicles by distance.
Worked example · Annual total
With Fuel type of petrol, this model computes Annual total of 107 NZD. See the full working.
✓ Verified against 4 self-test cases Updated for 2026 · sources checked 2026-08-02
How rego & RUC in New Zealand is calculated
New Zealand has no CO2 car tax. Petrol cars pay an annual licence (rego); diesel and electric vehicles pay Road User Charges (RUC) instead, at 76 NZD per 1,000 km.
RUC is the high-volume half of the query because it scales with distance driven. Road user charges for light electric vehicles began on 1 July 2026, ending their exemption, and plug-in hybrids pay half the rate at 38 NZD per 1,000 km. Pick your fuel type and enter your annual distance. Estimate, not advice.
Worked example
ShowHide the full working: 2 inputs, 3 computed steps
| Inputs | |
|---|---|
| Fuel type | Petrol — no RUC (tax is in the fuel price) |
| Annual distance (km) | 0 |
| Computed by the engine | |
| RUC rate per 1,000 km ✓ pinned | 0 |
| Road User Charges ✓ pinned | 0 NZD |
| Annual total ✓ pinned | 107 NZD |
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 RUC for 12,000 km in a diesel?
At 76 NZD per 1,000 km that is 912 NZD, plus the annual licence of about 107 NZD.
Do petrol cars pay RUC?
No — petrol cars pay fuel tax at the pump and only the annual licence; diesels and EVs pay RUC.
How is RUC calculated?
By distance: 76 NZD per 1,000 km for light diesel and electric vehicles, 38 for plug-in hybrids, plus a 12.44 NZD admin fee each time you buy a licence online.
Sources
- NZTA — rego & RUC · checked 2026-08-02
Estimate. Not tax advice. The verification badge means the model reproduces the stated formula through 4 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 4 test cases the engine reproduces, and what the badge does and does not claim. Also available as machine-readable JSON.
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