Car Depreciation in Singapore: 5 Mistakes to Avoid
Works out the yearly depreciation buyers in Singapore use to compare used cars. The maths is not complicated, but a handful of errors come up again and again in this and related loans & finance calculations. Here is what to watch for.
Interest in Singapore is quoted in several ways. Mortgages and savings accounts use effective annual rates, while car loans and many personal loans are advertised at flat rates that look much lower than their true cost. Banks must disclose the effective interest rate, and comparing on that basis gives a fair picture.
An emergency fund of three to six months of essential expenses protects you from having to borrow at high rates when something unexpected happens. Once that buffer is in place, extra savings can go towards longer-term goals and investments.
1. Using unrealistic returns
Projecting 10% a year for decades can make goals look easy; test lower rates too.
2. Paying only the minimum on a card
Minimum payments barely cover interest, so balances can take years to clear.
3. Ignoring fees
Processing fees, platform fees and early repayment penalties reduce real returns.
4. Forgetting inflation
S$1 million in 30 years will buy much less than S$1 million today.
5. Comparing flat rates with effective rates
A 3% flat rate can be close to 5.5% effective because interest is charged on the original amount for the whole term.
The correct method
Depreciation = (price − rebates) ÷ remaining COE years.
For example, with these inputs:
- Price you pay (S$): 120,000
- PARF + COE rebate at end (S$): 15,000
- Years of COE remaining: 9.5
the calculator returns:
- Annual depreciation: S$11,052.63
- Monthly depreciation: S$921.05
Related calculations
- Profit Margin Calculator: Calculates profit, margin and markup from cost and price.
- Markup Calculator: Finds the selling price from cost and markup.
- Discount Calculator: Works out sale prices during Great Singapore Sale, 11.11 and other promotions.
- Split the Bill Calculator: Splits a bill evenly.
The Car Depreciation Calculator applies the formula consistently, so it is a quick way to double-check your own working.
Run your own numbers: Car Depreciation Calculator