Upfront costs a South African buyer should budget
Beyond the deposit, South African buyers pay several once-off costs in cash at registration. The table lists the main named items verified against SARS and conveyancing practice; amounts depend on the purchase price and the attorney's tariff.
| Cost item | Who charges it / how it applies |
|---|---|
| Transfer duty | Levied by SARS on a sliding scale; no duty below a threshold reset annually by SARS |
| Transfer (conveyancing) costs | Transferring attorney's fee plus Deeds Office fee to register the property |
| Bond registration costs | Bond attorney's fee, Deeds Office bond fee and the bank's once-off initiation fee |
| Deposit | Reduces the bond amount; not all banks require one, but it lowers repayments and can improve the rate |
| Rate benchmark | Prime lending rate, set a fixed margin above the SARB repo rate (see on-page reference rate) |
- Transfer duty is payable to SARS and cannot be added to the bond; it is due in cash. Properties below the annually adjusted threshold pay no transfer duty, and VAT rather than transfer duty applies when buying from a VAT-registered developer.
- Transfer costs and bond registration costs are charged by separate attorneys and are paid in cash at registration, over and above the deposit.
- Because most bonds are variable-rate loans linked to prime, monthly repayments change when the SARB adjusts the repo rate. The single-rate result here is illustrative.
- This calculator excludes homeowners insurance, bond life cover, rates and levies, and monthly service fees.
What is a bond calculator in South Africa?
In South Africa, a home loan is widely referred to as a 'bond' — short for a mortgage bond registered over the property at the Deeds Office. A bond calculator applies the standard amortization formula to find the monthly repayment that clears interest and capital over the loan term. The registered bond is the security the bank holds until the loan is fully repaid.
The calculator derives the loan from the purchase price minus the deposit. South African banks can grant up to 100% bonds in some cases, but a deposit reduces the loan size, the monthly repayment and often the interest rate offered. The commonly quoted deposit share understates the total cash a buyer needs, because transfer and bond costs are payable separately in cash.
Most South African bonds are variable-rate loans priced relative to the prime lending rate, so repayments rise and fall when the South African Reserve Bank (SARB) changes the repo rate. By longstanding convention prime is set a fixed margin above the repo rate. This calculator models a single fixed rate for illustration; actual bond repayments change over the life of a variable-rate loan.
How to use this South African bond calculator
- Enter the purchase price and your deposit in rand. The calculator derives the bond amount as price minus deposit.
- Enter the annual interest rate. Banks typically quote this relative to prime — for example, at prime, or prime minus a margin for stronger applicants.
- Enter the loan term in years. The standard South African bond term is 20 years, though 25- and 30-year terms are also offered.
- Read the monthly bond repayment, the total paid over the term and the total interest.
- Budget separately in cash for transfer duty, transfer (conveyancing) costs and bond registration costs, none of which can be added to most bonds.
The bond repayment formula
The monthly bond repayment M is derived from the present-value annuity formula, which sets the present value of all future repayments equal to the loan principal P. The monthly rate r is the annual rate divided by 12; n is the number of monthly repayments (years times 12). Because most South African bonds are variable-rate loans linked to prime, the actual repayment changes whenever the reference rate moves; this calculator holds the rate fixed for a clean comparison.
Common mistakes
- Budgeting only for the deposit and forgetting transfer duty, transfer costs and bond registration costs, which are all payable in cash.
- Assuming the interest rate is fixed; most South African bonds are variable and track the prime lending rate.
- Believing transfer duty can be financed within the bond — SARS transfer duty must be paid separately in cash.
- Overlooking that buying from a VAT-registered developer means VAT applies instead of transfer duty.
- Ignoring monthly ancillary costs such as homeowners insurance, rates, levies and the bond service fee.
الأسئلة الشائعة
What is a bond in South Africa?
In South Africa a 'bond' is the everyday term for a home loan — more precisely a mortgage bond registered over the property at the Deeds Office as security for the loan. When people say they are applying for a bond, they mean applying for a mortgage from a bank. The bond remains registered against the property until the loan is fully repaid, at which point it is cancelled.
How much deposit do I need for a bond?
South African banks can approve bonds of up to 100% of the purchase price, so a deposit is not always mandatory, but putting down a deposit reduces the loan amount, lowers the monthly repayment and can secure a better interest rate. Importantly, a buyer also needs cash for transfer duty, transfer costs and bond registration costs, which are separate from and additional to the deposit.
What is transfer duty and who pays it?
Transfer duty is a tax the buyer pays to the South African Revenue Service (SARS) when acquiring property, calculated on a sliding scale based on the purchase price. Properties below a threshold that SARS resets annually attract no transfer duty. Transfer duty cannot be included in the bond and must be paid in cash. When a property is bought from a VAT-registered seller such as a developer, VAT applies instead of transfer duty.
What benchmark do South African bond rates track?
South African bond interest rates are quoted relative to the prime lending rate, which banks set a fixed margin above the repo rate published by the South African Reserve Bank (SARB). A stronger applicant may be offered a rate below prime, while a higher-risk profile may pay above prime. Because most bonds are variable-rate, repayments move whenever the SARB changes the repo rate. Calculate.Studio shows the current benchmark separately with its verification date.
Are South African bond repayments fixed or variable?
Most South African home loans are variable-rate bonds linked to the prime lending rate, meaning the monthly repayment rises or falls when the South African Reserve Bank changes the repo rate. Fixed-rate bonds are available from some banks for a set period but are less common and often priced higher. Because the default is variable, borrowers should plan for repayments that can change over the life of the loan.
What is a bond initiation fee?
A bond initiation fee is a once-off charge a South African bank levies to register a new home loan, forming part of the overall bond registration costs alongside the bond attorney's fee and the Deeds Office bond fee. It is a standard cost of taking out a bond. Some banks allow the initiation fee to be added to the loan, but the remaining transfer and registration costs are generally paid in cash at registration.
المراجع
- South African Revenue Service (SARS). Transfer Duty rates and thresholds. sars.gov.za/tax-rates/transfer-duty.
- South African Reserve Bank (SARB). Repo rate and monetary policy. resbank.co.za.
- National Credit Regulator (NCR). Home loans and the National Credit Act. ncr.org.za.
- South African Revenue Service (SARS). New transfer duty rates effective 1 April 2025. sars.gov.za.
- Deeds Office (Department of Agriculture, Land Reform and Rural Development). Registration of mortgage bonds. gov.za.