How Much Home Loan Can I Afford in South Africa? (2026)
Estimate how much home loan and property you may be able to afford from household income, expenses, existing debt, deposit, interest rate and loan term.
How much you can borrow for a house is not determined by salary alone. A lender has to consider income, existing financial obligations, living expenses, credit information and the proposed repayment. The useful starting point is therefore a cash-flow calculation rather than a simple multiple of salary.
What this affordability calculator does
The HowMuchSA Home Loan Affordability Calculator starts with your gross household income, subtracts payroll deductions, recurring living expenses, existing debt repayments and a safety buffer, and then compares the remaining cash flow with a comfort cap that you choose as a percentage of gross income. The lower of those two figures becomes the planning repayment capacity.
The calculator then converts that monthly repayment into an indicative loan amount using the selected interest rate and term. If you enter a deposit, it also shows an indicative property budget. If you enter a target property price, it estimates the required bond repayment and compares it with your planning capacity.
There is no universal “30% rule” that guarantees a bond
A percentage of gross income can be a useful personal budgeting guardrail, but it is not a promise of approval and should not be presented as a statutory lending formula. South African affordability assessments require credit providers to consider the consumer’s financial means and prospects, existing obligations and debt repayment information. Credit providers also apply their own risk and lending criteria.
Interest rate changes can materially alter affordability
Home-loan repayments are sensitive to the interest rate because the loan usually runs for many years. In July 2026 the South African Reserve Bank kept the SARB policy rate at 7%. The traditional prime lending rate has historically been maintained at a 3.5 percentage-point spread above the policy rate, implying 10.5% at that point, although the SARB is consulting on discontinuing prime as a reference rate. Your actual home-loan rate can be above or below that reference depending on the lender and application.
For that reason the HowMuchSA calculator makes the interest rate editable and also shows what the same loan would cost if the rate were two percentage points higher.
What to include in your monthly expenses
- Vehicle, personal-loan, credit-card and retail-account repayments.
- Groceries, transport, fuel, utilities and communications.
- Insurance, medical costs, school or childcare costs and maintenance obligations.
- Subscriptions and other recurring contractual expenses.
- A separate safety buffer for irregular costs and financial shocks.
Using artificially low expenses may produce a larger calculator number, but it does not produce a safer household budget and it does not replace the lender’s formal affordability assessment.
Do not forget the upfront buying costs
The maximum property price shown by an affordability calculator is not the same as the cash you need to complete a purchase. Depending on the transaction, you may still need a deposit, transfer duty, conveyancing fees, Deeds Office charges and bond-registration costs. Use the separate Home Buying Cost Calculator before deciding how much of your savings can safely be used as a deposit.
Estimate your home-loan budget
Use the Home Loan Affordability Calculator
Sources and methodology
- South African Reserve Bank: July 2026 Monetary Policy Committee statement
- South African Reserve Bank: consultation paper on the prime lending rate
- South African Government: National Credit Regulations (13 March 2015)
- National Credit Act 34 of 2005
Important: This guide and calculator are budgeting tools, not financial advice, a credit application, pre-qualification or a guarantee of approval. A registered credit provider must assess the actual application.