COE Bidding Simulator
New to COE bidding? Walk through a simulated auction step by step. Learn how the process works, what to expect, and how uniform pricing determines what you actually pay.
Choose Your COE Category
Every vehicle in Singapore needs a Certificate of Entitlement. Pick the category that matches the type of vehicle you want to register.
How COE categories work
LTA divides vehicles into 5 categories (A-E). Each category has a separate quota and auction. Your car's engine capacity and power output determine which category you must bid in — unless you choose the open Cat E.
How COE Bidding Works in Singapore
The COE bidding system is a uniform-price sealed-bid auction run by the Land Transport Authority twice a month. Bidding opens on a Monday and closes on a Wednesday. During this window, you submit the maximum price you are willing to pay for a COE in your vehicle's category.
The key insight is that you do not pay your bid amount. Everyone who wins pays the Quota Premium (QP) — the lowest successful bid. This means there is no advantage to bidding just above what you think the QP will be. The optimal strategy is to bid your true maximum willingness to pay, since you will only be charged the market-clearing price.
For real-time information during an active exercise, visit the live bidding page. To understand what drives COE prices and when conditions may be favourable, check the bid advisor and price trends. For a comprehensive overview, read our complete guide to COE.