Cash-on-Cash Return Calculator — South Africa
The metric serious SA property investors use. Calculate exactly how hard your capital is working — including bond repayment, transfer costs and every rand of operating expense.
Cash-on-Cash Return Calculator
Fill in each section — the calculator builds your full cash flow picture
These are auto-estimated. Adjust any field with your actual quoted costs.
🏦 Get Your Financing Right — Compare Multiple SA Banks
Your interest rate directly determines your bond repayment — one of the largest cash outflows in this calculator. A 0.5% rate improvement on a R1.5M bond saves approximately R750/month in cash flow, adding nearly 2% to your cash-on-cash return. Bond originators negotiate across 8–10 banks simultaneously at no cost to you.
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How to Use This Calculator
Work through the four sections in order. Section 1 sets up your bond — the calculator auto-estimates your repayment as you type. Section 2 auto-calculates transfer duty (SARS 2026 brackets) and estimates attorney and bond registration costs — adjust these with actual quotes if you have them. Add any renovation costs you spent at purchase.
Section 3 is your rental income net of vacancy. Section 4 captures all monthly operating costs. The results show your monthly cash flow, annual cash flow, cash-on-cash return, and a comparison against gross and net yield — so you can see all three lenses on the same property simultaneously.
Drill Deeper — Model NPV and IRR
Cash-on-cash measures current cash performance. Use the NPV / IRR Calculator to model the full investment return including capital growth over 10–20 years.
NPV / IRR Calculator →Why Cash-on-Cash Return Is the Most Important Metric for SA Property Investors
South African property investors typically encounter three yield metrics: gross yield, net yield, and cash-on-cash return. Most calculators — and most agents — lead with gross yield because it produces the most flattering number. Cash-on-cash is the metric that actually answers the question serious investors ask: how much return am I getting on the money I put in?
The distinction matters enormously in a leveraged investment. Consider a R1,500,000 property with a gross yield of 8%. It sounds reasonable. But after deducting operating expenses, the net yield might be 5.5%. And after the bond repayment at 11.00% over 20 years, the monthly cash flow might be negative — producing a negative cash-on-cash return. The gross yield was real; the cash position was not what it implied.
Cash-on-cash cuts through this by measuring: of all the money you actually spent to acquire this property (deposit, transfer costs, attorney fees, renovations), how much comes back to you annually as net cash after every cost is paid — including the bond?
SA Benchmarks: What Is a Good Cash-on-Cash Return?
| Cash-on-Cash Return | Verdict | SA Context (2026) |
|---|---|---|
| < 0% | Negative cash flow | Bond repayment exceeds net rent. Investor is funding the shortfall monthly. Common in low-yield areas (Sandton, Atlantic Seaboard). Only viable if capital growth is strong. |
| 0% – 4% | Near break-even | Property broadly covers itself. Modest cash surplus. Below-average for SA at current rates. |
| 4% – 8% | Acceptable | Generating reasonable cash on capital deployed. Well-structured SA investment property in this range. |
| > 8% | Strong | Excellent cash return. Typically requires high gross yield (9%+), low vacancy, and a favourable interest rate. Achievable in high-yield SA nodes like Hatfield, Centurion, Bloemfontein. |
Cash-on-Cash vs Rental Yield vs Total Return: Three Different Questions
Gross rental yield answers: what does this property earn relative to its price? It is useful for comparing properties and markets but ignores financing and operating costs.
Net rental yield answers: what does this property earn after operating costs but before financing? It is more useful than gross yield but still does not reflect the real cash position of a leveraged investor.
Cash-on-cash return answers: what do I earn on the capital I deployed, after every cost including the bond? This is the definitive metric for an investor evaluating where to put their deposit money. A 7% cash-on-cash return from property should be compared against what that same deposit could earn in a money market account, dividend-paying shares, or another property deal — not against the gross yield of the property itself.
The Interest Rate Sensitivity of Cash-on-Cash Returns in SA
South African cash-on-cash returns are unusually sensitive to the prime rate because most investment property is financed at prime-linked rates. When prime moved from 7% to 11.75% between 2022 and 2023, bond repayments on a R1,500,000 loan increased by approximately R4,200/month — turning many previously cash-positive properties deeply negative.
With prime at 10.50% in 2026, investors are beginning to see improved cash-on-cash returns as rate cuts filter through. Each 25-basis-point SARB rate cut reduces the monthly repayment on a R1,500,000 bond by approximately R250/month — improving annual cash flow by R3,000 and adding roughly 1% to cash-on-cash return on a R300,000 cash investment. This is why tracking the SARB rate cycle is central to SA property investment timing strategy.
Frequently Asked Questions
Common questions about cash-on-cash return in SA property