COE System

The Certificate of Entitlement (COE) is a transferable licence, valid for ten years, that a person must win at auction before registering a vehicle in Singapore. It is the mechanism by which Singapore caps its vehicle population absolutely rather than letting demand determine it, and it is the single reason cars in Singapore cost several times what they cost anywhere else — a COE alone commonly exceeds S$100,000, before the car, taxes, and duties (LTA OneMotoring, accessed Aug 2026). The policy follows from geography: a city-state of about 735 km² cannot accommodate unconstrained car ownership, so the state rations the right to own one and channels demand into the public transport network instead. Current premiums are tracked in annual rates.

Categories

COEs are issued in five categories, each with its own quota and premium:

• Category A — cars up to 1,600cc with maximum power up to 97 kW, and fully electric cars up to 110 kW.
• Category B — cars above 1,600cc or above 97 kW, and electric cars above 110 kW.
• Category C — goods vehicles and buses.
• Category D — motorcycles.
• Category E — the open category, usable for any vehicle type except motorcycles.

Category A was intended as the "mass-market" tier and Category B for larger cars, but as electric vehicles proliferated the power-based cutoffs became the operative dividing line, and the two categories' premiums have often converged. COEs in Categories A, B, and D are non-transferable once used, while Category C and Category E COEs registered to individuals may be transferred — which is why Category E functions as a flexible, and typically expensive, route to a car of any kind (LTA OneMotoring, accessed Aug 2026).

How bidding works

Bidding exercises open on the first and third Monday of each month and run for three days. Bidders — in practice mostly car dealers acting for buyers — submit a reserve price, and the system awards COEs to the highest bidders up to the quota, with every successful bidder paying the same price: the lowest successful bid, known as the Quota Premium. Prices are therefore set entirely by the interaction of a fixed supply with whatever demand exists, and they swing sharply. In the first bidding exercise of August 2026, Category A closed at S$123,890 and Category B at S$129,910 (Motorist.sg reporting LTA results, accessed Aug 2026). A COE runs for ten years from registration, after which an owner must either deregister the vehicle or pay the Prevailing Quota Premium — the moving average of recent prices — to renew for another five or ten years.

Where the quota comes from

The supply of COEs is not a policy target set afresh each quarter but a formula anchored to vehicles leaving the road. The quota for each three-month period is built mainly from the COEs freed by vehicles deregistered over a preceding twelve-month window, plus an allowance for permitted vehicle population growth and adjustments for factors such as temporary COEs and expected deregistrations. For the August to October 2026 period LTA set a total quota of 19,085, drawing on 25% of replacement COEs from vehicles deregistered between July 2025 and June 2026, with a growth provision of 0.25% per annum for Category C (LTA, accessed Aug 2026). The annual growth rate for cars and motorcycles has been held at zero since 2018, meaning the car population is capped and new COEs essentially only appear when old cars are scrapped. This creates the system's notorious cyclicality: because deregistrations echo the registration booms of a decade earlier, supply arrives in waves, and premiums spike when a trough passes through.

Cost, equity, and debate

LTA describes the Vehicle Quota System as a way to control Singapore’s vehicle population in light of limited road space, while its cost guidance treats the COE premium as one component alongside the vehicle’s Open Market Value and other taxes and fees (LTA OneMotoring, accessed Aug 2026; LTA vehicle tax structure, accessed Aug 2026). The equity debate is therefore about both rationing scarce road space and distributing the combined cost of vehicle ownership.

A COE is only part of the cost of a car. Buyers also pay the Open Market Value of the vehicle, an Additional Registration Fee levied as a steep percentage of OMV, excise duty, GST, and road tax, so a modest family car routinely costs the equivalent of a small apartment in many countries. Owners who deregister early receive a prorated COE rebate and a portion of the ARF, which softens the loss but also makes cars a depreciating ten-year consumable rather than a lasting asset. The system is defended as the only workable way to keep a dense island moving, and it has clearly succeeded on its own terms — Singapore has no chronic congestion crisis, and its public transport carries the load. The criticisms are equally durable: the auction allocates cars purely by willingness to pay, so ownership skews to the wealthy while premiums are paid by everyone including tradespeople and families with genuine need; volatility makes purchase timing a lottery; and the revenue raised, running to billions annually, is a substantial regressive charge on households. Policy responses have focused on carving out categories, adjusting quota smoothing to dampen spikes, and shifting the long-run emphasis from ownership toward usage-based charging through ERP 2.0.