Applied parameters include a source and verification date.
COE Renewal vs Replace Car Calculator
Compare four paths from the same current vehicle value, debt and decision horizon. The calculator keeps PQP, renewal timing, lender terms, running costs, resale, deregistration receipts and no-car transport explicit, then reconciles both cash flow and economic cost without double counting paper value.
LTA · OneMotoring · MAS · PTC · methodology v1.1.0 · rules checked 9 Sep 2026
Compare renewing this car for five years, renewing for ten years, replacing it and giving it up from one starting value, debt position and dated horizon. PQP, lender terms, running costs and future values remain explicit inputs.
Data provenance
Every path uses net cash outflow + opening vehicle equity − closing vehicle equity. Historical purchase price is sunk; market sale and deregistration are exclusive; loans stop at maturity; running costs continue.
Live API referencePackaged fallback- MAS — Motor Vehicle Loans2026-09-05
- MoneySense — Flat Rate, Monthly Rest and Effective Interest Rate2026-09-05
- MoneySense — Buying a Property: How Much Can You Afford?2026-09-05
- OneMotoring — Vehicle Tax Structure2026-09-11
- OneMotoring — PARF/COE Rebate2026-09-05
- OneMotoring — COE Renewal and Prevailing Quota Premium2026-09-09
- OneMotoring — Road Tax and Age Surcharge2026-09-11
- OneMotoring — Vehicular Emissions Scheme2026-09-10
- LTA / NEA — Extension of VES and EEAI2026-09-10
- EMA — Buying Electricity at the Regulated Tariff2026-09-11
- LTA — Revision to PARF Rebate Schedule and Cap2026-09-05
- data.gov.sg — COE Bidding Results2026-09-05
- Public Transport Council — Fares and passes2026-09-08
- SimplyGo — Adult Monthly Travel Pass2026-09-08
- GIA — No Claims Discount2026-09-11
- GIA — Dos and Don’ts Following an Accident2026-09-11
- GIA — Motor Claims Framework2026-09-11
Frequently asked questions
Is a current COE auction premium the PQP?
No. PQP is the applicable three-month moving-average amount for renewal. Enter or verify it separately.
Does market sale receive PARF again?
No. An entered market sale is treated as inclusive. PARF, COE rebate and body/export value are added only for the separate deregistration method.
Does this tell me which path to choose?
No. It identifies the lower modelled cost under the assumptions you entered and keeps incomplete paths out of ranking.
General information only. Results are arithmetic under your inputs—not a recommendation, valuation, lender quote, reliability forecast or prediction of PQP, maintenance, resale or returns.
What this tool will show
Each result stays connected to the inputs and rules used.
- 01Five-year renewal, ten-year renewal, replacement and no-car path comparison
- 02Decision-date cash, recurring cash, annual ledger and finance-maturity timeline
- 03Economic-cost reconciliation using common opening and closing vehicle equity
- 04Maintenance break-even, resale sensitivity and optional opportunity-cost projection
- 05Dated source provenance, assumptions and connected hand-offs to Car Tools 1–5
The workings stay visible from day one.
User inputs and defaults are clearly separated.
Scope and exclusions appear beside the result.
interest.sg provides general information, dated reference data and calculation tools. Results are estimates—not financial, investment, legal, tax, property, valuation, CPF, HDB, lending, insurance or protection advice. Verify material decisions with the relevant authority or a qualified professional.
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