Road tax surcharge calculator
What road tax costs once your car is past 10 years old, and how much extra you would pay over a 5-year or 10-year COE renewal.
How road tax changes after 10 years
Once a car is more than 10 years old, LTA adds a surcharge to its normal road tax. It starts at 10% in the 11th year and rises by 10 points a year to 50% from the 15th year onwards. A renewed COE therefore comes with a road tax bill that goes up every year for the first five years of the renewal, then stays at the 50% level.
| Car age | Surcharge | 1,598cc petrol car, a year |
|---|---|---|
| Up to 10 years | None | $742 |
| 11th year | 10% | $816 |
| 12th year | 20% | $890 |
| 13th year | 30% | $964 |
| 14th year | 40% | $1,038 |
| 15th year onwards | 50% | $1,113 |
The base road tax
For a petrol or hybrid car, the six-monthly road tax comes from engine capacity using LTA's banded formula, multiplied by 0.782. A 1,598cc car comes to about $742 a year before any surcharge. Electric cars are charged on power rating in kW, plus a flat additional component. Diesel cars also pay a special tax, which this calculator leaves out.
Road tax is one of the running costs we put into every renewal quote. For the full picture, read what renewing a COE really costs and insurance, inspection and road tax after 10 years.
This calculator gives an estimate from the published formula. OneMotoring shows the exact road tax payable for your car.
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Renew or replace calculator
The yearly cost of keeping your car on a renewed COE, set against buying another car.Get your renewal quote
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