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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.

✓ Results shown free✓ Dated source references✓ General information only

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.

Dated sourcesLTA / OneMotoringMASPTC / SimplyGoUser inputs
1Common starting point and disposal

Current market value, debt, settlement and deregistration receipts stay separate. Blank is unknown; enter 0 only when zero is confirmed.

2Renewal date, PQP and finance

PQP is not an auction premium. Early, expiry-month and late renewal receive different dated treatment.

Five-year payment is 50% of applicable PQP rounded up to a dollar; ten-year payment is full PQP.

Renew 5 years
Renew 10 years
3Current-car running costs

Choose one combined total or separate components. The assisted road-tax mode changes only the verified age surcharge on your confirmed base road tax.

4Replacement path

Enter an all-in new, used or COE-renewed replacement; the calculator never guesses a price from a vehicle name.

5Give-up-car path

Enter household monthly public transport, generic ride-hailing, car sharing/rental and other transport for the full horizon, or review a Tool 5 import.

Calculated in your browser. Do not enter a plate number, VIN, address, lender name, insurer name or free text. Planned renewal and replacement values never become current profile facts.

Data provenance

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

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.

Clear outputs

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
Transparency standard

The workings stay visible from day one.

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Official rules

Applied parameters include a source and verification date.

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Assumptions

User inputs and defaults are clearly separated.

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Limits

Scope and exclusions appear beside the result.

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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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