The Repo Rate Explained: Why the SARB Hikes Interest Rates
Understand the Repo Rate and why the SARB hikes interest rates. Lesedi Dlamini explains how these decisions impact your bond, car loans, and monthly budget.
If you have a home loan, a car financed through a bank, or a credit card, there is one economic term that dictates your monthly disposable income more than any other: the Repo Rate. Whenever the South African Reserve Bank (SARB) Monetary Policy Committee (MPC) meets, the country holds its breath. A single percentage point shift can mean the difference between a comfortable month and a financial squeeze.
In this cluster of our South Africa Economic Overview, we will demystify The Repo Rate Explained, looking at why the central bank chooses to hike rates and how you can shield your wallet from the fallout.
What is the Repo Rate?
The “Repo Rate” is short for Repurchase Rate. It is the benchmark interest rate at which the South African Reserve Bank (SARB) lends money to private commercial banks like Capitec, Standard Bank, and Absa.
Think of it as the “wholesale price” of money. When the SARB increases this price, the commercial banks pass that cost directly to you by increasing the Prime Lending Rate. In South Africa, the Prime Rate is typically kept at 3.5% above the Repo Rate.
Lesedi’s Economic Insight: The Waterfall Effect
Imagine a waterfall. The SARB sits at the top. When they “thicken” the flow of interest (hike the rate), that water flows down to the commercial banks, and eventually, it splashes onto your monthly bond statement. You cannot stop the water, but you can build a “financial umbrella” to keep your budget dry.

Why Does the SARB Hike Interest Rates?
It may feel like the SARB is “punishing” consumers when they raise rates, but their primary mandate is actually protection—specifically, protecting the value of the Rand. There are three main reasons for a hike:
1. Taming Inflation
As we discussed in our guide on Inflation Targeting in SA, the SARB must keep inflation between 3% and 6%. If people are spending too much and prices are rising too fast, the SARB raises the Repo Rate to make borrowing expensive. This discourages spending, slows down the economy, and eventually brings prices back down.
2. Protecting the Rand
If interest rates in the United States or Europe go up, global investors might move their money out of South Africa to earn better returns elsewhere. To prevent this “capital flight”—which would weaken the Rand—the SARB often raises our local rates to keep South African investments attractive to the world.
3. Managing “Inflation Expectations”
Sometimes, the SARB hikes rates just to send a message. By showing they are “tough on inflation,” they signal to businesses and unions that they shouldn’t raise prices or wage demands too aggressively in the coming year.
How a Rate Hike Hits Your Wallet
When the news breaks that the Repo Rate has increased by 50 basis points (0.50%), the impact is almost immediate for anyone with “linked” debt.
- Home Loans: Most bonds in South Africa are variable. A 1% increase on a R1 million bond can add roughly R600 to R700 to your monthly payment.
- Vehicle Finance: Your monthly car instalment will increase if your contract is linked to the prime rate.
- Credit Cards: The interest charged on your outstanding balance will rise, making it harder to pay off the principal debt.
Impact Analysis: Repo Rate vs. Monthly Budget
SARB Interest Rate Decisions: How It Hits Your Pocket
| SARB Action | Why they did it | The Impact on You |
|---|---|---|
| Rate Hike | High inflation or weak Rand. | Pain: Higher bond/car payments; less money for groceries. |
| Rate Cut | Low growth or low inflation. | Relief! Lower debt repayments; more disposable income. |
| Hold (No Change) | Economic stability. | Predictable: Your budget stays stable for another 2 months. |
The “Prime” Connection: Why Your Bank Charges More
You might ask: “If the Repo Rate is 8%, why is my bank charging me 11.5%?” This is because banks add a margin to cover their operational costs and the risk of lending to you. This is the Prime Lending Rate.
According to Statistics South Africa (StatsSA), the cost of servicing debt is one of the largest expenditures for the South African middle class. When the gap between your salary and your debt repayments narrows because of a rate hike, it is called being “stretched.”
Strategies to Survive a Rising Interest Rate Cycle
Since you cannot control the MPC’s vote, you must control your debt structure. Here is how:
- Pay More Than the Minimum: If you can afford it, pay an extra R200 or R500 into your bond while rates are low. This reduces the capital amount, meaning when rates do go up, the interest is calculated on a smaller number.
- Avoid New Debt: When the SARB is in a “hiking cycle,” avoid taking out new credit or store cards. The cost of that debt will only increase.
- Fixed vs. Variable Rates: You can ask your bank to “fix” your interest rate for a period (e.g., 24 months). However, banks usually charge a premium for this certainty, so calculate carefully.
- Review your Budget: Use our South Africa Economic Overview to see how to reallocate funds toward assets that earn interest, rather than just paying it.
FAQ: Common Questions About the Repo Rate
1. How often does the Repo Rate change?
The Monetary Policy Committee (MPC) meets six times a year (roughly every two months). They announce their decision on a Thursday afternoon.
2. Does a Repo Rate hike help my savings?
Yes! While a hike is bad for borrowers, it is good for savers. You will earn more interest on your fixed deposits and savings accounts.
3. What are “Basis Points”?
In the world of The Repo Rate Explained, 100 basis points equals 1%. So, if the SARB hikes by 25 basis points, that is a 0.25% increase.
Turning Knowledge Into Financial Power
Understanding The Repo Rate Explained is the first step toward financial resilience. While interest rate hikes are a painful tool used to keep the economy stable, they are not a surprise if you know what to look for. By monitoring inflation and the strength of the Rand, you can predict when a hike is coming and adjust your “financial umbrella” accordingly.
The SARB’s decisions are meant to protect the country’s long-term future, but your job is to protect your household’s immediate present. Stay informed, reduce your reliance on high-interest debt, and always leave a “buffer” in your budget for the next MPC announcement.
