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Rent vs Buy vs Invest Calculator Singapore

Compare homeowner equity with a renter who invests the same upfront cash and monthly cost difference.

verified_userBy Smart Calculator Editorial · ONN Group LLPupdateVerified Jul 2026open_in_newIRAS · HDB · MASPlanning estimate — test multiple scenarios before deciding.

What this calculator does

This calculator compares two complete balance sheets rather than rent against a mortgage payment. Buying includes downpayment, BSD, ABSD, mortgage, property tax, maintenance and selling costs. Renting invests the equivalent upfront capital and any monthly savings.

Your scenario

Enter your real numbers

tune
Property & buyer
Loan & ownership
Market assumptions

Private by design — your inputs stay in this browser.

Example result — edit and calculate

Buying leads by about S$212,404

Comparison after 10 year(s), using your appreciation, rent-growth and investment-return assumptions.

Owner net worth

$816,808

Renter portfolio

$604,403

Monthly mortgage

$4,268

Upfront cash + duties

$332,600

Breakdown

Downpayment$300,000
Buyer stamp duty$32,600
Additional buyer stamp duty$0
Future property value$1,462,793
Remaining mortgage$618,016
Estimated selling costs$29,256
lightbulbThe model assumes the property changes by 2.0% a year and investments return 5.0% a year.
lightbulbCPF accrued interest, grants, renovation, SSD and sale-specific legal costs should be added separately when relevant.
lightbulbTry pessimistic and optimistic scenarios; small annual-rate changes compound into large differences.

What you’ll get

account_balance

Full ownership cost

Mortgage, taxes, maintenance, duties and eventual selling costs.

show_chart

Fair investment alternative

The renter invests the same upfront capital and monthly difference.

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Net-worth verdict

Compare both paths after your actual intended holding period.

Frequently asked questions

Why is rent not simply compared with the mortgage?expand_more

Mortgage principal builds equity, while interest, duties, tax and maintenance are costs. A fair comparison tracks ending net worth for both paths.

Does the calculator include CPF?expand_more

Not yet. This first version treats all capital as one balance sheet. Add CPF accrued interest and usage separately if it is material to your decision.

Does it include SSD and renovation?expand_more

No. Add renovation to your effective purchase price and check SSD separately if you may sell within the applicable holding period.

What assumptions should I test?expand_more

Run at least three scenarios: low, base and high property appreciation. Also vary investment return, mortgage rate and holding period. These assumptions often determine the verdict.

Sources and methodology