What is the repo rate, and how does it reach me?
The repo rate is the interest rate at which the South African Reserve Bank (SARB) lends money to commercial banks.
When this central rate changes, commercial banks immediately adjust the interest rates they charge consumers for loans, as well as the interest they pay out on savings accounts.
The bank for banks
Just as ordinary people borrow money from commercial banks, commercial banks sometimes need to borrow money from the South African Reserve Bank to manage their daily cash flow.
The SARB does not lend this money for free. It charges interest. The specific rate it charges is called the repurchase rate, commonly known as the repo rate. It is the foundational interest rate for the entire South African economy.
Turning repo into prime
Commercial banks run as businesses, so they do not lend money to the public at the exact same rate they get from the Reserve Bank. They add a fixed markup to cover their costs and make a profit. This new, higher rate is called the prime lending rate.
In South Africa, the structural markup is strictly maintained at 3.5%. This means the prime lending rate is always exactly 3.5 percentage points higher than the repo rate.
If the Reserve Bank sets the repo rate at 8%, the prime lending rate automatically becomes 11.5%. If the repo rate drops to 7.5%, prime drops to 11%.
How it changes your debt
When an individual takes out a home loan, vehicle finance, or a personal loan, the bank usually offers a variable interest rate linked to prime. The contract might specify that the loan costs "prime plus 1%" or "prime minus 0.5%".
Because the loan is mathematically tethered to the prime lending rate, any change by the Reserve Bank flows directly to the consumer. When the repo rate goes up, the bank recalculates the loan, and the required minimum repayment increases. When the rate goes down, the monthly instalment drops.
How it changes your savings
Interest rates are a two-way street. While a rising repo rate makes debt more expensive, it also rewards people who have cash in the bank.
Commercial banks adjust the yields they offer on savings accounts, fixed deposits, and money market accounts based on the repo rate. A higher repo rate means cash investments generate a higher return.
Why the Reserve Bank changes the rate
The Reserve Bank has a dedicated team called the Monetary Policy Committee (MPC) that meets six times a year. Their primary constitutional job is to protect the value of the Rand by controlling inflation — the speed at which everyday prices go up.
The repo rate is the primary tool they use to steer the economy, acting as both a brake and an accelerator.
- The Brake: If prices are rising too fast, the MPC raises the repo rate. Borrowing becomes expensive, debt repayments swallow more income, and people spend less. This drop in demand forces shops and suppliers to slow their price hikes.
- The Accelerator: If the economy is stagnant and inflation is safely under control, the MPC lowers the repo rate. Borrowing becomes cheaper, leaving households with more disposable income to spend, which encourages businesses to grow and hire.
Terms used on this page
- South African Reserve Bank (SARB)
- The central bank of South Africa, responsible for managing the country's money supply and protecting the value of the Rand.
- prime lending rate
- The benchmark interest rate that commercial banks use as a starting point when pricing loans for consumers.
- minimum repayment
- The smallest amount a credit agreement requires you to pay each month to stay in good standing.
- money-market account
- A savings-style account that earns interest from very short-term lending. Its value doesn't swing with the stock market.
- inflation
- The rate at which the general prices of goods and services in an economy increase over time.
Sources
Reviewed July 2026