Forum: Review EV road tax framework to avoid penalising family cars
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Singapore’s current electric vehicle (EV) and plug-in hybrid electric vehicle (PHEV) road tax framework creates unintended financial anomalies that disproportionately penalise mass-market family vehicles.
The progressive kW-based framework misjudges the nature of electric motors. Larger family vehicles _ such as seven-seater multi-purpose vehicles (MPVs) and mid-sized sport utility vehicles (SUVs) _ inherently require higher-output electric motors simply to move their heavy chassis and battery packs safely.
Because vehicles are taxed purely on maximum motor power (kW), family-oriented SUVs like the Xpeng G9 are hit with luxury supercar tax rates exceeding $3,500 to $4,300 annually. This forces families looking for essential cabin space into a steep luxury tax bracket.
Furthermore, plug-in hybrids face a double penalty. Under the “whichever is higher” rule, a PHEV with a capable electric motor is taxed on its electric component, resulting in annual road taxes upwards of $4,100. This actively discourages the adoption of low-emission vehicles, even though these drivers still pay fuel excise duties at the pump.
Finally, the $700 annual additional flat component tax means that households using their vehicles strictly for essential family commutes face an expensive fixed annual bill regardless of their actual road usage or carbon footprint.
As Singapore advances its Green Plan, the Ministry of Transport should review these thresholds. Adjusting the formulas to account for vehicle size or weight-to-power ratios would ensure a fairer transition towards clean-energy transport for Singaporean families.
Gurcharan Singh
