The FisCalc
// PROPERTY

Rent vs Buy
Calculator

Model the break-even point where buying beats renting — factoring in stamp duty, deposit opportunity cost, property growth, and investment returns.

// PROPERTY_DETAILS
Buying scenario
State
Property growth rate (p.a.)4.0%

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After 10 years, renting + investing comes out ahead
$298,577 more wealth
Renting leads throughout all 10 years
Buy — net wealth
$688,407
After 10yr, after selling costs
Rent — investment portfolio
$986,984
Deposit + savings invested at 8%
// UPFRONT_COSTS
Property price$900,000
Deposit$180,000
Stamp duty (NSW)$35,835
Other buying costs (~2%)$18,000
Total cash required$233,835
Loan amount$720,000
Monthly repayment (P&I)$4,428/mo
// YEAR_BY_YEAR
YearBuy wealthRent wealthDifference
1$224,214$288,004−$63,790
2$270,380$345,980−$75,600
3$318,589$408,056−$89,467
4$368,933$474,542−$105,609
5$421,512$545,777−$124,265
6$476,428$622,125−$145,697
7$533,790$703,979−$170,188
8$593,711$791,762−$198,051
9$656,311$885,933−$229,622
10$688,407$986,984−$298,577
General information only. This model uses simplified assumptions. It does not account for negative gearing tax benefits, capital gains tax on the investment portfolio, rental vacancy, strata levies, or changes in interest rates. Buying costs include an indicative 2% for conveyancing/inspections — actual costs vary. Not financial advice.

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The Honest Framework for Rent vs Buy in Australia

The rent-vs-buy decision is often framed as renting being "dead money" — but this ignores the opportunity cost of capital tied up in a property. A $180,000 deposit invested in a diversified index fund returning 8% per annum grows to approximately $388,000 over 10 years. Meanwhile, a property must generate capital growth and rental yield sufficient to beat that compounding return, after accounting for all carrying costs, to justify the buy decision on purely financial terms.

True ownership costs extend well beyond the mortgage repayment. Council rates typically run $1,500–$3,500 per year depending on the local government area. Maintenance and repairs average 1–2% of the property's value annually — on a $750,000 home, that's $7,500–$15,000 per year. Strata levies on apartments add another $3,000–$12,000. These recurring costs rarely appear in simple buy-vs-rent comparisons but compound significantly over a 10-to-30-year ownership horizon.

Stamp duty creates a break-even hurdle that buyers often underestimate. In NSW, stamp duty on a $750,000 property is approximately $28,335. To simply recover this upfront cost at 5% annual capital growth, you need roughly 2.5 years of ownership before you're back to zero. Factor in mortgage costs versus renting the same property, and the break-even period often stretches to 5–7 years in major capital cities — meaning short-term purchases frequently underperform renting on a pure financial basis.

Frequently Asked Questions

Is renting really "throwing money away"?
No — this framing is mathematically misleading. Renters pay for housing, which is a real service with real value. Homeowners pay interest on their mortgage, council rates, insurance, maintenance, and strata fees — none of which builds equity. The relevant comparison is the net cost of renting versus the net cost of owning the same property, including opportunity cost on the deposit. In Sydney and Melbourne, the rent-versus-buy ratio often favours renting for periods under 7 years, particularly when purchase prices are high relative to achievable rent.
How does stamp duty affect the break-even calculation?
Stamp duty is a sunk cost paid upfront that must be recovered through capital growth before the buy decision generates any real return. In Victoria, stamp duty on a $750,000 property reaches $40,070 — the highest in the country. At 5% annual capital growth on $750,000 (= $37,500/year), it takes over 12 months of capital growth just to break even on stamp duty alone. Add conveyancing, building inspections, and LMI if your deposit is below 20%, and the all-in purchase cost can exceed 5–6% of the property price before a single mortgage repayment is made.
What capital growth rate do I need to justify buying over renting?
In most Australian capital city markets, buying outperforms renting financially when capital growth exceeds 3–4% per annum over a holding period of at least 7 years. Below that threshold or for shorter timeframes, a renter who invests the equivalent deposit in a diversified portfolio frequently achieves better risk-adjusted returns. CoreLogic's long-run national dwelling price growth averages approximately 6.8% per annum since 1980, but this masks enormous suburb-level variance and excludes the compounding effect of all carrying costs detailed above.
If You Buy
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Before You Bid
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General information only. This calculator provides general educational information only and is not financial advice. Property and investment markets carry risk. Consult a licensed financial adviser (AFS Licence holder) before making buy-or-rent decisions involving significant capital.