Buy vs Rent Calculator

Buy vs Rent Break-Even Calculator

Find out when buying becomes cheaper than renting over the long term.

Break-Even Year -
Monthly Mortgage -
Down Payment (%) -
BSD -
Total Buy Cost (30yr) -
Total Rent Cost (30yr) -
Savings (30yr) -

How to Use the Breakeven Calculator

Key Takeaways

  • The break-even year — not the monthly mortgage payment — is the correct metric for buy vs rent decisions; buying can cost more monthly but still win financially at Year 8.
  • Opportunity cost of the down payment is the most commonly overlooked factor — $375K invested at 4% p.a. generates $148K over 10 years that must be counted on the renting side.
  • At 3% appreciation and 3% rent growth, most Singapore condo purchases break even between Year 7 and Year 10 — if your life plan is 5 years or fewer, renting is likely cheaper.
  • Rent growth is a powerful forcing function: if your rent rises 3% p.a. for 10 years, your monthly rent grows from $3,500 to $4,703 — cumulative rent paid becomes substantial.
  • Run the calculator with 0% appreciation to find the worst-case break-even year — if you cannot afford that scenario, your budget is too stretched.

What It Does

Calculate the exact year when buying becomes cheaper than renting. Factor in down payment opportunity cost, mortgage interest, property appreciation, rental escalation, and tax to find your personal crossover point.

You can find this calculator in the Calculators tab on ShiokNest. It updates results instantly as you adjust inputs — no waiting, no page reloads.

Why It Matters

Renting feels cheaper every month. Your landlord charges $3,500 — far less than the $5,500 mortgage payment you would be making. But this comparison is incomplete. The true buy-vs-rent calculation must include what happens to your money over time: property appreciation, cumulative rent escalation, opportunity cost of the down payment, tax benefits, and the equity you build with every mortgage payment. The break-even calculator does this full comparison year by year and tells you the exact year when buying overtakes renting in total cost terms.

The single most important number this calculator reveals is the break-even year — the point where the cumulative cost of buying drops below the cumulative cost of renting. For most Singapore condo buyers at 3% appreciation and 3% rent growth, this crossover happens between Year 7 and Year 10. Before that point, renting is cheaper on a total-cost basis. After it, buying pulls ahead and the advantage compounds. If you plan to hold for fewer years than the break-even, renting is the rational financial choice.

The most common mistake buyers make is ignoring opportunity cost. A $375K down payment on a $1.5M condo is not "free" money — it is capital that could earn 4–6% in a diversified investment portfolio. The calculator includes this implicit cost on the renting side, so the comparison is genuinely apples-to-apples. Without it, buying looks artificially attractive because the down payment appears to have no cost. Many buyers discover their break-even is 2–3 years later than they thought once opportunity cost is properly included.

Use this calculator in combination with the Side-by-Side Comparison and the End-to-End Investment Calculator to model all scenarios before signing the OTP.

How It Works

  • Navigate to Calculators — Click the "Calculators" tab in the ShiokNest navigation bar. All 47 calculators are grouped by purpose for easy access.
  • Select the calculator — Choose "How to Find Your Buy vs Rent Break-Even Year" from the calculator list. You will see default values already loaded so you can explore immediately.
  • ️ Enter your values — Replace the defaults with your own numbers. The key fields are:
  • Review the results — The calculator updates instantly as you change any input. Key results are displayed in KPI cards and charts that update as you adjust inputs.
  • Run what-if scenarios — This is where the real power lies. Change one variable at a time to see its impact. For example, try increasing the interest rate by 1% or extending your holding period by 5 years. Note how the results shift.
  • Compare and decide — Run 2-3 different scenarios and note the results. This gives you a range of outcomes to base your decision on, rather than relying on a single projection.

Examples

$1.5M condo: finding the buy vs rent break-even year

Inputs
Purchase price
$1,500,000
Monthly rent alternative
$3,500
Down payment
$375,000 (25%) + $44,600 BSD
Loan
$1,125,000 at 3.5%, 25yr
Assumptions
3% appreciation | 3% rent growth | 4% investment return on down payment
Results
Monthly mortgage
$5,624/month
Year 1 rent vs buy gap
$2,124/month cheaper to rent
Cumulative break-even
Year 8 — buying cheaper on total cost basis
Year 10 buy advantage
+$182,000 ahead vs renting

How to read this: Monthly, renting is $2,124 cheaper. But the chart shows the lines crossing at Year 8 when cumulative total costs are compared. By Year 10, buying is $182,000 cheaper in total. This is because the renter's cumulative rent (growing at 3% p.a.) reaches $487K, while the buyer's cumulative interest + fees amount to $379K net of equity built and appreciation captured. The critical insight is that buying at $1.5M "wins" at a 10-year hold — but only by Year 8. If the buyer needs to sell at Year 5, ...

High rent growth scenario: break-even accelerates to Year 6

Inputs
Purchase price
$1,500,000
Monthly rent alternative
$3,500
Loan
$1,125,000 at 3.5%, 25yr
Assumptions changed
3% appreciation | 5% rent growth | 4% investment return
Results
Year 5 cumulative rent (5% growth)
$238,000 vs $194,000 at 3% growth
Break-even year
Year 6 (vs Year 8 at 3% rent growth)
Year 10 buy advantage
+$327,000 (vs +$182,000 at 3% growth)
Sensitivity
Each 1% rent growth increase moves break-even ~1 year earlier

How to read this: Raising rent growth from 3% to 5% moves the break-even from Year 8 to Year 6 — two full years earlier. This scenario is not hypothetical: Singapore rents grew 5–7% p.a. in several years between 2018–2023. The calculator makes this sensitivity explicit: aggressive rent growth makes buying look better sooner. For buyers in markets with rapidly rising rents (D9, D10, D15), using a 4–5% rent growth assumption may be more realistic than 3%, and the break-even analysis favours buying more s...

Tips & Pitfalls

Expert Tips

  • Use realistic assumptions — Singapore condo appreciation has historically averaged 2-4% per year. Avoid overly optimistic projections. When in doubt, use 3% as a baseline.

Common Pitfalls

  • Ignoring opportunity cost — Treating the down payment as "free" money makes buying look artificially attractive. The capital tied up in your property has an implicit cost equal to its next-best return.
  • Using current rent to project future rent — Singapore rents rose 30%+ in 2022–2023. Project rent growth at 3% p.a. minimum to capture realistic long-term escalation.
  • Confusing monthly cost with total cost — Monthly mortgage may exceed monthly rent, but cumulative total cost (including appreciation and equity build) can still favour buying from Year 7–8 onwards. Always compare on total-cost basis.

Frequently Asked Questions

Is my data saved?
No. All calculations run entirely in your browser. Nothing is stored on our servers or shared with third parties.
What does "break-even year" mean exactly?
The break-even year is when cumulative total cost of buying (mortgage interest, fees, maintenance, property tax, less equity built and appreciation) drops below cumulative total cost of renting (rent paid, less investment returns on the down payment). Before this year, renting is cheaper in total terms. After it, buying is cheaper. The crossover is typically between Year 6–10 for Singapore condos at standard assumptions.
Can I save my results?
Log in to save scenarios to your dashboard, or use the share button to copy a URL that encodes your inputs.
Does the calculator include property tax and maintenance?
Yes. Both property tax (based on IRAS AV methodology) and monthly maintenance/condo fees are included on the buying side. These are often overlooked in informal buy-vs-rent comparisons. For a $1.5M non-owner-occupied condo, property tax alone can be $3,000–$8,000 per year.

Related Resources

Article How to Build Investment Scenarios Article How to Calculate Capitalisation Rate Article How to Calculate Commercial Property Stamp Duty Article How to Calculate Commercial Property Yield Article How to Estimate Land Value Calculator Buy vs Rent: Finding Your Break-Even Point
Disclaimer: Figures shown are estimates for planning purposes only. Rates, rules, and grant quanta change frequently — verify with your bank, HDB, or a licensed financial advisor before acting.