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Singapore COE & car-buying guides
Plain-English explainers on how Singapore's Certificate of Entitlement works — bidding, categories, renewal, the taxes that make up a car's price, and how to read the market. Written for first-time buyers and seasoned owners alike.
What is a COE?
A Certificate of Entitlement (COE) is a licence that gives you the right to own and use a vehicle in Singapore for ten years. Before any car can be registered, it must have a COE — so the COE is effectively a permit to put a car on the road, bought separately from the car itself.
Singapore introduced the COE in 1990 under the Vehicle Quota System (VQS). With one of the highest population densities in the world and limited land for roads, the government chose to cap the number of vehicles rather than let the car population grow unchecked. The COE is the mechanism that enforces that cap: a fixed number are released each period, and buyers compete for them.
Because supply is deliberately limited and demand is high, COE prices are substantial — often a large share of a new car's total cost, and at times more than the car itself. After ten years you must either deregister the vehicle (scrap or export it) or renew the COE to keep it on the road. We explain both paths below.
Quota.sg shows the latest COE results, our Buy / Wait / Caution signal, and tools to estimate the true cost of ownership. The guides here explain the rules behind those numbers.
The COE categories, explained
COEs are split into categories so that a small hatchback isn't bidding directly against a heavy goods vehicle. As of 2026 the categories are broadly:
- Category A — mainstream cars: smaller engines and lower power output (and electric cars below a set power threshold). This is where most everyday family cars sit.
- Category B — larger / more powerful cars, including more powerful electric cars. Premiums here are usually the highest among car categories.
- Category C — goods vehicles and buses (commercial).
- Category D — motorcycles.
- Category E — the Open category. An Open COE can be used to register almost any vehicle type except a motorcycle, which makes it flexible — buyers of larger or premium cars often use it. Because it competes with Category B demand, its price tends to track Category B closely.
The exact engine-capacity and power thresholds that separate Category A from Category B are set by the LTA and have been revised over the years, so always confirm the current cut-offs on the LTA's OneMotoring before assuming which category a specific model falls into.
How COE bidding actually works
COEs are sold through an open bidding exercise held twice a month. Each exercise runs over a few days, and during that window you (usually through a car dealer) submit the maximum amount you're willing to pay. The system shows the prevailing COE price in real time as bids come in.
The key thing to understand is that everyone who wins pays the same price — the lowest successful bid, known as the Quota Premium. If the number of COEs available is, say, 1,000 and you place the 1,000th-highest bid, the price settles at that level and every successful bidder pays it. You don't pay your maximum bid; you pay the clearing price. So a higher max bid improves your chance of winning but doesn't raise what you ultimately pay beyond the clearing premium.
The number of COEs in each category is the quota, set by the LTA on a quarterly basis. It's driven mainly by how many vehicles were deregistered in earlier periods (those COEs are recycled back into supply), plus any allowable growth in the vehicle population and policy adjustments to smooth out supply.
What moves COE prices up and down
COE premiums can swing by tens of thousands of dollars from one exercise to the next. The main drivers:
- Quota (supply). When few cars were deregistered in the past, fewer COEs are recycled, the quota shrinks, and prices tend to rise. A larger quota does the opposite.
- Demand. New model launches, dealer promotions, year-end buying, and general economic confidence all push demand — and prices — around.
- The EV transition. As buyers shift toward electric models, demand can concentrate in particular categories and change the historical patterns.
- Financing conditions. Interest rates and loan rules affect monthly affordability, which feeds into how aggressively people bid.
Because supply is announced quarterly and demand shifts continuously, timing matters. Quota.sg's bid signal and historical-patterns tools are built to help you read where in the cycle the market currently sits.
Renew or scrap? The 10-year decision
When a car's COE nears the end of its ten years, the owner faces a choice: deregister the car, or renew the COE and keep driving it.
Deregister (scrap or export). If your car still has a PARF rebate (see below), deregistering before the ten years are up returns part of the registration tax to you. Scrapping a relatively young, well-kept car can recover meaningful value.
Renew the COE. You pay the Prevailing Quota Premium (PQP) to extend for another 5 or 10 years. Renewing avoids the cost of buying a brand-new car and its fresh COE, which can make financial sense for a reliable car you know well. The trade-off: once renewed, the car has no PARF rebate left, and a 5-year renewal cannot be renewed again — the car must be deregistered at the end of it.
The right answer depends on the car's condition, the current PQP, and what you'd otherwise spend on a replacement. Our Renew vs Scrap tool runs the numbers for your specific situation.
COE renewal & the PQP
If you renew rather than bid, you don't go through the bidding exercise. Instead you pay the Prevailing Quota Premium, which is the moving average of COE prices in that category over the previous three months. Because it's an average, the PQP is smoother and more predictable than the twice-monthly bidding result.
You can renew for 10 years (renewable again afterwards) or 5 years (a one-time extension — the car must be deregistered at the end, with no further renewal and no PARF rebate). Road tax on older cars also carries a surcharge that rises with the car's age, which is worth factoring into the renew-vs-replace maths.
ARF, OMV, PARF and road tax — demystified
A new car's price in Singapore is built from several layers. Knowing them helps you understand where your money goes and what you can recover later.
OMV — Open Market Value
Assessed by Singapore Customs, the OMV is the basic cost of the vehicle — its price, plus freight and insurance to bring it here, before local taxes. Many local fees are calculated as a percentage of OMV.
ARF — Additional Registration Fee
A tax payable when the vehicle is first registered. It's tiered: higher-OMV cars pay a higher marginal rate on the upper portions of their value. This is the single largest tax component for most cars and the figure the PARF rebate is based on.
PARF rebate
If you deregister a car within ten years, you get back a percentage of the ARF you originally paid — the PARF rebate — with the percentage decreasing as the car ages. It's effectively a refund of part of the registration tax for taking the car off the road early. Note that the maximum PARF rebate is capped, and the cap was revised under Budget 2026, so confirm the current figure before relying on it.
Road tax
Paid every 6 or 12 months, road tax is based on engine capacity for combustion cars (and on power rating for electric cars), with an age-based surcharge for older vehicles.
Tax rates, tiers and rebate caps are revised periodically — often at the annual Budget. Treat any specific figures as a guide and verify the current rates on the LTA's OneMotoring portal.
Electric cars, the VES & incentives
Singapore uses the Vehicular Emissions Scheme (VES) to reward cleaner vehicles and penalise dirtier ones. A car is tested across several pollutants, and its worst-performing pollutant determines its band. Cleaner bands earn a rebate that lowers the upfront cost; the most polluting bands carry a surcharge.
Electric cars generally land in the cleanest bands, though an emissions factor is applied to account for how the electricity is generated. Over the years Singapore has also offered EV-specific incentives (such as the EV Early Adoption Incentive, which ran through the end of 2025) to narrow the price gap with petrol cars. Incentive schemes change frequently, so check the LTA and Ministry of Transport for what's currently in force.
Our EV vs petrol comparison weighs the real Singapore costs — COE, taxes, rebates, road tax and running costs — so you can see the genuine difference rather than the sticker price.
Frequently asked questions
How often are COE results released?
Twice a month. Each bidding exercise runs over a few days, and the final premium is published when it closes.
Do I pay my maximum bid?
No. All successful bidders pay the same Quota Premium — the lowest successful bid (the clearing price) — not their individual maximum.
How long does a COE last?
Ten years from registration. After that you deregister the vehicle or renew the COE by paying the Prevailing Quota Premium.
What's the difference between Category A and B?
Category A is for smaller, less powerful cars (and lower-powered EVs); Category B is for larger or more powerful cars. The exact thresholds are set by the LTA and have changed over time.
Can I use a Category E (Open) COE for any car?
Almost — an Open COE covers any vehicle type except motorcycles, which is why buyers of larger and premium cars often use it.
Is it cheaper to renew my COE or buy a new car?
It depends on the current PQP, your car's condition, and the cost of a replacement. Renewing avoids a fresh COE and a new car's depreciation, but the renewed car keeps no PARF rebate. Our Renew vs Scrap tool compares the two.
Will COE prices go down?
No one can predict premiums reliably — they depend on quota and demand that shift each exercise. Our historical-patterns tool shows which periods have tended to be cheaper, but past patterns are not guarantees.
Where does Quota.sg get its data?
From official LTA open data, updated after every COE exercise. We are an independent platform and are not affiliated with the LTA or any government agency.
Glossary
- ARF — Additional Registration Fee
- A tiered tax paid when a vehicle is first registered, based on its OMV. The largest tax component for most cars.
- Bidding exercise
- The twice-monthly open auction in which COEs are sold.
- Category A / B / C / D / E
- The COE classes — mainstream cars, larger cars, goods vehicles & buses, motorcycles, and the Open category, respectively.
- COE — Certificate of Entitlement
- A ten-year licence to own and use a vehicle in Singapore.
- Deregistration
- Taking a vehicle off the road by scrapping or exporting it, which may release a PARF rebate.
- OMV — Open Market Value
- The basic value of a vehicle (price, freight, insurance) as assessed by Singapore Customs, before local taxes.
- Open category (Cat E)
- A flexible COE usable for any vehicle type except motorcycles.
- PARF rebate
- A partial refund of ARF when a car is deregistered within ten years; the percentage falls as the car ages, and the maximum is capped.
- PQP — Prevailing Quota Premium
- The three-month moving average of COE prices used when renewing a COE instead of bidding.
- Quota
- The number of COEs released per category, set quarterly by the LTA.
- Quota Premium
- The clearing price of a bidding exercise — what every successful bidder pays.
- VES — Vehicular Emissions Scheme
- A banding scheme that gives rebates to cleaner vehicles and surcharges to dirtier ones.
- VQS — Vehicle Quota System
- The 1990 framework that caps Singapore's vehicle population via the COE.