Buy vs Rent Calculator South Africa 2026
30-year wealth comparison with break-even year and SVG chart — should you buy or rent?
Calculator Features
How to Use This Calculator
Enter your property price, deposit, and bond rate. Then set the monthly rent for an equivalent property, the expected annual rent increase, and the return you could earn by investing the deposit (and monthly savings) instead. The calculator runs a year-by-year simulation for 30 years, comparing equity built through ownership versus wealth built through investing.
The break-even year is when buying wealth (property equity) surpasses the renter's investment portfolio. Before that year, renting and investing is mathematically better; after that year, buying is better.
How the Comparison Works
The Buying scenario
The buyer pays a monthly bond repayment plus ownership costs (rates, levy, insurance, maintenance). Property value grows at the chosen appreciation rate. Equity = Property value minus remaining bond balance.
The Renting scenario
The renter invests the deposit in a diversified portfolio. Each month, if buying costs more than renting, the renter invests the difference. The portfolio grows at the chosen investment return rate. Rent increases annually at the specified rate.
Important caveats
- This model does not include transaction costs (transfer duty, conveyancing) on purchase — add these to be more accurate.
- Investment returns are not guaranteed. The JSE ALSI has returned approximately 12% per year historically, but with significant volatility.
- Property appreciation varies wildly by location and period.
- CGT on the investment portfolio is not modelled.
- The emotional, lifestyle, and security benefits of ownership are not quantifiable.
Worked Example
Thembi is deciding whether to buy a R1 400 000 home in Centurion with a R140 000 deposit and a 20-year bond at 10.25%, or to rent for R12 000/month and invest the deposit in an ETF returning 8% p.a.
Monthly buying cost: ~R13 500 (bond R12 382 + R5 000 costs = R17 382 total; or just bond at ~R12 400 + costs)
Monthly difference above rent: R17 382 − R12 000 = R5 382 invested monthly by the renter
Under these assumptions with 5% annual appreciation, buying typically breaks even around year 12–15. After that, property equity grows faster due to leverage and appreciation compounding on the full property value.
Frequently Asked Questions
Is it better to buy or rent property in South Africa in 2026?
There is no universal answer. With the prime rate at 10.25%, buying is relatively expensive on a monthly basis compared to renting in most SA cities. However, over a 15–25 year horizon, buying typically builds more wealth due to leverage (the full property appreciates while you only put down 10%) and forced savings. The break-even depends critically on the rent-to-value ratio, property appreciation, and investment returns. Run the calculator with your specific numbers.
What property appreciation rate should I use for South Africa?
South African residential property has appreciated at approximately 6–8% per year nominally over the long term (1980–2024 FNB data). In real terms (above inflation), returns have been lower — roughly 1–3%. For a conservative estimate, use 5%; for optimistic, use 8%. Prime coastal markets (Cape Town Atlantic Seaboard) have significantly outperformed; outlying rural areas have underperformed.
What investment return should I use for the renting scenario?
The JSE All Share Index has returned approximately 12–14% per year nominally over the past 30 years. A diversified balanced fund typically returns 10–12%. A cash deposit earns roughly 8–9% in 2026. Use 8% for a conservative balanced approach or 10–12% for a growth portfolio. Remember: unlike property, investment portfolios don't use leverage (though you can via ETF margin — not modelled here).
Does this calculator include transfer costs when buying?
No — transfer duty and conveyancing costs (typically R60 000–R150 000 on a R1 400 000 property) are not included. To get a more accurate comparison, increase the deposit input by the estimated transfer costs, as these are a sunk cost that does not go into equity. Use our Transfer Cost Calculator to estimate these costs.
Why does the calculator sometimes show renting is better forever?
If the investment return rate is much higher than the property appreciation rate, or if the rent-to-price ratio is very low (cheap rent relative to property value), renting may mathematically outperform for the full 30-year period. This is more likely in areas with low rental yields and high price-to-rent ratios. It does not mean you should always rent — intangible benefits of ownership (security, renovation freedom, retirement asset) have real value that numbers cannot capture.