Buying a car in Singapore is expensive by global standards, regardless of powertrain. The COE system, Additional Registration Fee (ARF), and excise duties push vehicle prices well above what buyers pay in most countries. For electric vehicles, government incentives have narrowed the gap, but understanding the total cost of ownership (TCO) over five to ten years remains essential for informed decision-making.
Upfront Costs: Breaking Down the Price Tag
The sticker price of an EV in Singapore includes several layered components. Understanding each one helps explain why the same car costs dramatically different amounts across markets.
Open Market Value (OMV) and ARF
The OMV is the assessed value of the vehicle at the point of import. The ARF is a registration tax calculated as a percentage of OMV, structured in tiers: 100% on the first S$20,000, 140% on the next S$30,000, and 180% on anything above S$50,000. For EVs qualifying under the EV Early Adoption Incentive, the ARF is reduced by up to S$45,000, which significantly lowers the registration cost.
Certificate of Entitlement (COE)
The COE grants the right to own and operate a vehicle in Singapore for ten years. COE premiums fluctuate based on supply and demand, with Category A (cars up to 1,600cc or 97kW) and Category B (above) regularly exceeding S$90,000 in recent years. Since EVs are measured in kW rather than cc, a powerful EV may fall into Category B, increasing costs. Some buyers time their purchase around COE bidding cycles to secure lower premiums.
Excise Duty and GST
A 20% excise duty applies on the OMV, followed by 9% GST on the total. These charges apply equally to ICE and electric vehicles, offering no EV-specific advantage.
Running Costs: Where EVs Win
Energy vs. Fuel
This is where electric vehicles demonstrate their strongest financial advantage in Singapore. At an average residential electricity tariff of S$0.32 per kWh and typical EV consumption of 15 kWh per 100 km, the energy cost works out to approximately S$4.80 per 100 km. A comparable petrol sedan consuming 8-10 litres per 100 km at S$2.80 per litre costs S$22-28 for the same distance.
Over 15,000 km per year (a reasonable Singapore average), the annual energy cost for an EV is roughly S$720, versus S$3,300-4,200 for petrol. That is an annual saving of S$2,580-3,480, or S$12,900-17,400 over five years.
Road Tax
Road tax for EVs in Singapore is calculated based on power output (kW) rather than engine displacement (cc). The LTA applies a power-to-cc conversion factor. Historically, this made EVs more expensive to tax due to their high instantaneous power output. However, the government introduced a 40% road tax reduction for EVs registered from January 2022, which was extended through December 2025 and subsequently renewed. This brings EV road tax broadly in line with ICE equivalents.
Maintenance
Electric vehicles have fundamentally fewer mechanical components than combustion cars. There is no engine oil, no timing belt, no exhaust system, no spark plugs, and no conventional transmission fluid. Brake wear is also dramatically reduced because regenerative braking handles the majority of deceleration.
Typical annual servicing for an EV in Singapore costs S$200-400, compared to S$600-1,200 for a comparable ICE vehicle. Over five years, this translates to savings of S$2,000-4,000. Tyre replacement costs are similar, though EVs tend to wear tyres slightly faster due to higher torque delivery.
Insurance
EV insurance premiums in Singapore have decreased as the market matures and insurer data improves. In the early days of EV adoption, premiums were 10-20% higher than equivalent ICE vehicles due to perceived battery replacement risk and limited repair expertise. By 2026, the gap has narrowed to roughly 5-10% for most models, and some insurers now offer EV-specific policies with battery coverage included.
Five-Year TCO Comparison
| Cost Component | BYD Atto 3 (EV) | Toyota Corolla Cross (Petrol) |
|---|---|---|
| Purchase price (incl. COE, after rebates) | S$195,000 | S$185,000 |
| Energy / Fuel (5 years, 15k km/yr) | S$3,600 | S$18,000 |
| Road tax (5 years) | S$3,400 | S$3,800 |
| Maintenance (5 years) | S$1,500 | S$4,500 |
| Insurance (5 years) | S$8,500 | S$8,000 |
| Estimated resale (10-year COE remaining) | S$65,000 | S$55,000 |
| Net 5-Year Cost | S$147,000 | S$164,300 |
The EV comes out approximately S$17,300 cheaper over five years in this comparison, despite a slightly higher purchase price. The savings come primarily from energy costs and reduced maintenance. As COE premiums and electricity tariffs fluctuate, the exact figures shift, but the structural advantage of electric powertrains in operating costs remains consistent.
Battery Degradation and Warranty
Battery longevity is a common concern for prospective EV buyers. Most manufacturers offer warranties of 8 years or 160,000 km on the battery pack, guaranteeing at least 70% of original capacity. In Singapore's warm climate, battery degradation tends to be marginally faster than in temperate regions, but real-world data from early BYD and Tesla owners in Singapore shows 93-96% state of health after three years of typical use.
BYD's blade battery technology uses lithium iron phosphate (LFP) chemistry, which is inherently more stable and slower to degrade than nickel-rich NMC alternatives. Tesla switched its standard Model 3 to LFP cells in 2021, and most LFP batteries comfortably exceed the warranty threshold over ten years of normal driving.
Depreciation and Resale Value
Depreciation is the largest single cost element for any car in Singapore. The ten-year COE lifespan means all vehicles depreciate to near-zero by year ten (unless the COE is renewed). EVs have shown slightly better resale retention than petrol equivalents in the first five years, driven by strong demand and limited used EV supply.
Models with established service networks (Tesla, Hyundai, BYD) hold value better than those from newer or smaller brands. Software update capability is also a factor: a five-year-old Tesla with current software feels more modern than a similarly aged ICE vehicle with a fixed feature set.
Should You Switch Now?
- If your current COE is expiring and you drive 10,000+ km per year, the TCO case for switching to an EV is compelling today.
- HDB residents should verify that their nearby car park has charging points, or that installation is planned under the ECCG programme, before committing.
- Condominium residents should engage their management committee early. The approval and installation process can take 3-6 months.
- Buyers comfortable with Chinese brands (BYD, MG) will find the strongest value. Those prioritising brand prestige pay a premium but still save on running costs versus petrol equivalents.
- The ARF rebate of up to S$45,000 is confirmed through at least December 2027. Waiting beyond this date risks losing the incentive.