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What If Calculator

Compare COE prices between two bidding rounds. See how much you would have saved (or spent more) if you had bought in a different round.

Select Rounds

Target Round

S$111,890

Date: 18 Mar 2026
Round: 2
PQP: S$108,595
Bids / Quota: 1 / 1,264

Comparison Round

S$118,000

Date: 1 Apr 2026
Round: 1
PQP: S$108,920
Bids / Quota: 2 / 1,265

Price Timeline — Cat A

Apr 1999 Mar 2001

Target round

Comparison round

Exploring COE What-If Scenarios

Every COE bidding round produces a different premium, and even modest swings of a few thousand dollars can meaningfully change your total purchase cost. Comparing rounds side by side lets you see exactly how much you would have saved — or overpaid — by buying at a different time, helping you make more informed decisions about when to enter the market.

Beyond the COE premium itself, price changes ripple through the ARF calculation and overall depreciation, amplifying the impact on your wallet. Use this calculator alongside the COE trends chart to spot patterns, and check the bid advisor for a data-driven read on whether current conditions favour buyers or sellers.

Frequently Asked Questions

What drives COE price changes between rounds?

COE prices are determined by supply (quota allocation) and demand (number of bidders). Key factors include seasonal buying patterns, policy changes, economic sentiment, and the balance between new registrations and deregistrations. The supply forecast tracks these dynamics.

How sensitive is the total car cost to COE changes?

Very. A $10,000 change in COE translates directly to $10,000 more or less in total purchase cost — and also affects the Additional Registration Fee since the COE is included in the vehicle value. Use this calculator to compare real scenarios between bidding rounds.

Should I wait for COE prices to drop?

Timing the COE market is difficult. While the bid advisor can signal whether current conditions favour buyers, COE prices can move unpredictably. Consider your actual need for a car and your budget rather than trying to time the market perfectly.

Explore More

Results Archive

Browse all COE bidding results

Price Trends

Track COE price movements over time

What is COE?

Complete beginner guide

Blog & Analysis

Latest insights and articles