Repo rate explained: how it changes your loan and bond repayments in South Africa

What is the repo rate?

The repo rate is the interest rate at which the South African Reserve Bank lends money to commercial banks. It is the central bank's main lever on borrowing costs. The Reserve Bank's monetary policy page says the Monetary Policy Committee (MPC) meets six times a year to set it, and that the rate "affects many other rates in the economy". The bank's own pages now refer to it as the SARB policy rate, but everyone from the newsreader to your bond originator still says repo.

When you hear that "interest rates went up", this is the number being talked about. The Reserve Bank never lends to you directly. It moves the price of money for the banks, and the banks decide how much of that move to pass on.

How does the repo rate end up in my loan or bond repayment?

Take the decision, add 3.5 percentage points and you have prime, the base rate the banks lend from. Your bond might say prime minus 0.5, your card prime plus 6. Same link either way: when repo moves, the rate in your contract moves with it, and so does the debit order. Our guide to the prime rate today has the current figures and the recent decisions, so this page sticks to how the mechanism works.

Prices respond slowly. The Reserve Bank's own page says a policy change takes roughly 12 to 24 months to work through. Your instalment is quicker than that. Banks announced prime at 10.75% effective 25 September 2026, two days after the decision, and variable accounts follow from there.

Why does the Reserve Bank raise or cut the rate?

It raises the rate when it fears inflation will run above target, and cuts when there is room. The target is 3%, with a tolerance band of one percentage point either side, according to the Reserve Bank's monetary policy page. Before 2025 anything inside 3% to 6% counted. Then, EWN reported in July 2025, the committee began aiming for the 3% floor.

Fuel, the rand and rates abroad all get weighed. The September 2026 hike to 7.25% followed a July hold at 7%, when two of the six members already wanted to move. EWN's report on the September decision says the committee had in front of it a large and persistent global supply shock, with the Middle East conflict pushing fuel higher.

Dearer borrowing cools spending. Prices ease. The person with a variable-rate bond pays for it.

Which of my debts move when repo moves?

Only variable-rate debt moves automatically. Bonds are the clearest case, and most credit cards and overdrafts are also linked to prime. A fixed-rate personal loan, a vehicle finance contract with a fixed rate or an instalment agreement keeps its rate for the full term, whatever the MPC does.

Your credit agreement states whether the rate is fixed or variable, and what the margin over prime is. If it is not obvious, ask the lender in writing before the next MPC date.

These figures come from the standard annuity formula with equal monthly payments and no fees or insurance, so they are a yardstick and not a quote. Because a bond runs for decades, a one-point move costs roughly R685 a month on a R1 million balance, and the effect compounds over time if the rate keeps climbing. A shorter loan feels it much less. On a R50 000 personal loan over 36 months with a variable rate of 25%, a rise to 26% adds about R27 a month, or roughly R955 over the full term.

How do the legal interest limits follow repo?

The maximum interest a registered lender may charge on most credit types is the repo rate plus a fixed margin, so the cap moves by the same amount as repo. For credit facilities such as cards and overdrafts the margin is 14 percentage points, and for unsecured loans it is 21, as set out in Regulation 42 of the National Credit Regulations. At a repo of 7.25% that puts the card ceiling at 21.25% a year and the unsecured loan ceiling at 28.25%, by simple addition. Short-term credit works differently, with a flat monthly cap that ignores repo, and our guide to what payday loans cost covers it.

A cap is a ceiling and not the price you will be offered. Your own rate depends on your profile and the product.

What should I do before an MPC announcement?

Look at your next three or four monthly debit orders and ask whether you could absorb an extra few hundred rand. If the answer is no, a variable-rate bond or card balance is worth raising with your lender before the date and not after. Some banks will let you switch part of a debt to a fixed rate or reduce the term, though terms differ and you should ask for the offer in writing.

If rising instalments are already squeezing the budget, the choice is between talking to the lender, a debt counsellor under debt review, or sometimes debt consolidation. A new loan taken to cover an old one at a variable rate is exposed to the same risk, so check that the registration of any lender you consider appears on the National Credit Regulator's register, and browse registered options in the lender directory.

When is the next announcement?

In November, at the last MPC meeting of 2026. The decision is published on the day, and we refresh the prime guide and post a short item in finance news soon after.