Rental yield & cash flow calculator
Analyse South African buy-to-let investment performance by modelling gross rental yield %, net rental yield % after municipal rates, body corporate levies, maintenance, and vacancy allowance, plus monthly net cash flow after bond instalments.
Rental Income & Operating Expenses
11.35%
8.09%
+ R975 / month
Annual Net Cash Position: + R11 700 / year
Statutory & Credit Disclaimer: Calculations are indicative estimates provided for South African property budgeting only and do not constitute formal financial or legal advice under FAIS. Final home loan terms are subject to lender credit approval and affordability verification under the National Credit Act (Act 34 of 2005). Conveyancing, bond registration, Deeds Office, and SARS Transfer Duty figures are subject to statutory tariff adjustments.
How to Analyse Buy-to-Let Rental Yields in South Africa
Experienced South African property investors never rely solely on headline Gross Rental Yield. Sectional title schemes and freehold estates carry recurring statutory charges that materially impact Net Operating Income (NOI):
South African Net Rental Yield Formula:
Net Yield (%) = [(Annual Effective Rent − Annual Operating Costs) ÷ Purchase Price] × 100
- • Annual Effective Rent = Gross Annual Rent × (1 − Vacancy Rate %)
- • Annual Operating Costs = 12 × (Body Corporate Levies + Municipal Rates + Maintenance Provision)
- • Monthly Net Cash Flow = Monthly Net Operating Income − Monthly Bond Repayment
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Frequently Asked Questions: South African Rental Yields & Sectional Title Cash Flow
What is the difference between Gross Rental Yield and Net Rental Yield in South Africa?
Gross Rental Yield divides the total annual headline rental income by the property purchase price without deducting operating expenses. Net Rental Yield deducts South African non-recoverable landlord expenses—including Body Corporate sectional title levies, CSOS levies, municipal property rates, maintenance reserves, and vacancy provisions—before dividing by the purchase price.
What is considered a good net rental yield in South Africa?
Across major South African metros (Johannesburg, Tshwane, Cape Town, eThekwini, and Nelson Mandela Bay), residential buy-to-let investors generally target a Gross Rental Yield of 9.0% to 11.5% and a Net Rental Yield of 7.0% to 9.5%. High-yielding sectional title apartments in Gauteng often achieve higher initial cash yields, whereas Western Cape properties historically deliver stronger long-term capital appreciation.
Why must Body Corporate levies and municipal rates be deducted when calculating yield?
Under the Sectional Titles Schemes Management Act (Act 8 of 2011), landlords are statutorily liable for monthly Body Corporate administrative levies, 10-year maintenance reserve fund contributions, and municipal property rates. While water and electricity consumption can be billed back to tenants, fixed levies and rates directly reduce the landlord’s net operating income (NOI).
What does a cash-flow positive buy-to-let property mean at 10.75% Prime?
A property is cash-flow positive when the effective monthly rent (after deducting vacancy allowance, Body Corporate levies, municipal rates, and maintenance provisions) exceeds the monthly mortgage bond repayment. If net operating income is lower than the monthly bond instalment, the investor must fund a monthly cash-flow top-up shortfall.