Interest rate changes are reported as though everyone is affected equally. In practice, whether a rate change reaches your bank account depends on the kind of credit agreements you hold.

Repo rate and prime rate

The South African Reserve Bank sets the repo rate — the rate at which it lends to commercial banks. Banks price their lending off that, and the prime rate is the benchmark most consumer lending is quoted against, usually as “prime plus” some margin based on your risk profile.

When the repo rate moves, prime typically moves with it, and credit linked to prime follows.

Which of your debts actually move

  • Home loans: usually linked to prime, so instalments move when rates move.
  • Vehicle finance: depends on the agreement — some are linked, some fixed.
  • Credit cards and store accounts: rates vary, and are often already near the maximum permitted.
  • Personal loans: frequently fixed for the term, so an existing loan's instalment may not change.

If you're unsure which of yours are linked or fixed, the agreement itself says so. It's worth actually checking rather than assuming — people are often surprised in both directions.

Why a small percentage feels big

On long-term debt, a small rate change applies to a large outstanding balance for many years, so the effect on the monthly instalment is more noticeable than the percentage sounds. On a short-term loan that's nearly repaid, the same change barely registers.

Rate caps exist

The National Credit Act and its regulations prescribe maximum interest rates for different categories of credit agreement. A credit provider cannot charge whatever it likes. If you believe you're being charged beyond what's permitted, that is something to raise — with the provider, and if unresolved, with the regulator.

What to do when rates rise

Recalculate your budget with the new instalment rather than waiting to see whether you cope. If the new total pushes your repayments past what your income can carry alongside essential expenses, that is worth addressing early rather than after arrears build up.

Frequently asked

Who sets interest rates in South Africa?

The South African Reserve Bank sets the repo rate. Banks set their own lending rates off that, with prime as the common benchmark.

Will a rate cut reduce all my repayments?

Only on agreements linked to a variable rate such as prime. Fixed-rate agreements keep the same instalment.

Is there a limit on what interest I can be charged?

Yes. The National Credit Act and its regulations prescribe maximum rates for different categories of credit agreement.