By MoneyBees
Work out your road tax from LTA's own formulas: by engine capacity for petrol and diesel cars, by power rating plus the flat component for electric cars, the higher of the two for hybrids, and the surcharge once a car is over 10 years old.
On your vehicle log card.
Sets the vehicle's age for the surcharge.
Every 6 months
$371
$370.86 before rounding
For a year
$742
two 6-month periods
Age surcharge
0%
until the car is over 10 years old
| Part | Every 6 months |
|---|---|
| Road tax on 1,598cc | $370.86 |
| Total by the formulas | $370.86 |
| Payable, to the nearest dollar | $371 |
LTA charges whole dollars, so the total is rounded to the nearest dollar, as in LTA's own worked figures. Check your vehicle's amount on OneMotoring before you pay.
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Petrol cars and electric cars under 10 years old, every 6 months, rounded to the dollar.
| Engine or motor | Road tax | With EV flat component |
|---|---|---|
| 1,000cc | $196 | - |
| 1,496cc | $341 | - |
| 1,598cc | $371 | - |
| 1,998cc | $605 | - |
| 2,999cc | $1,192 | - |
| Electric, 100 kW | $401 | $751 |
| Electric, 150 kW | $547 | $897 |
Every amount is for 6 months. You can renew for 6 or 12 months. Off-peak and weekend cars can only renew for 12.
A 1,598cc petrol car works out to (S$250 + S$0.375 x 598) x 0.782 = S$370.86, so it pays S$371 every 6 months, or S$742 a year. At 12 years and a day old, the surcharge is 30%: S$111.26 more, S$482.12, so S$482 every 6 months. A 100 kW electric car works out to (S$250 + S$3.75 x 70) x 0.782 = S$400.78, plus the S$350 flat component: S$750.78, so S$751.
Figures checked 3 Oct 2026.
For a petrol car, LTA sets a base amount by engine capacity and multiplies it by 0.782. A 1,598cc car pays (S$250 + S$0.375 x 598) x 0.782, which is S$370.86, so S$371 every 6 months.
Road tax is based on the motor's power rating in kW, times 0.782, plus an Additional Flat Component of S$350 every 6 months. A 100 kW car pays S$400.78 plus S$350, so S$750.78 every 6 months.
LTA works out the road tax twice, once by engine capacity and once by the electric power rating, and you pay the higher amount. Hybrids do not pay the electric car flat component.
Once a vehicle is more than 10 years old, LTA adds a surcharge of 10% of the road tax. It goes up 10 points each year, to 50% once the vehicle is more than 14 years old.
Yes. A diesel car pays road tax by engine capacity plus a special tax that depends on its emission standard. For a Euro V car it is S$0.20 per cc less S$100, at least S$100, every 6 months.
Either. Off-peak cars, revised off-peak cars and weekend cars can only renew for 12 months.
OneMotoring shows the road tax payable for your vehicle number. This calculator uses LTA's published formulas and rounds the total to the nearest dollar, as LTA's own worked figures do.
Each formula result is kept to the cent. LTA publishes no rounding rule, but its own worked figures round the amount payable to the nearest dollar, so the calculator does the same for the 6-month and 12-month totals.
These calculators provide general estimates for educational purposes only and are not personalised financial advice. Results may rely on rates and rules that change over time, so verify against official sources (IRAS, CPF Board, HDB, MAS) or consult a licensed financial adviser before making decisions.
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