Market newsInterest rates

Rate decision on 23 September: what a hike would cost your bond

The Reserve Bank's Monetary Policy Committee meets on 23 September, ten days from today, with prime at 10.50%. July's inflation pullback makes a hold more likely than it looked in mid-year — but the committee's last vote split 4-2, so a hike is not off the table. If you have a variable-rate bond, or you're about to apply for one, now is the time to run your numbers at 10.75%.

By bond.co.za Editorial Team, Home loan content editor · Reviewed by Registered Mortgage Originator · Published 2026-09-13 · Last verified 2026-09-13

sarbrepo-ratebond-repaymentsmpc
A couple at a kitchen island in a South African townhouse with a laptop and two mugs — running the numbers before the SARB rate decision.

Key takeaways

  • 01The SARB's MPC announces its next decision at 15:00 on Thursday 23 September 2026; banks typically adjust prime the next business day.
  • 02Prime is currently 10.50% (repo 7.00%), after a 25 basis point hike in May 2026 — the first increase since 2023 — and a hold in July.
  • 03The July hold was a split 4-2 vote, with two committee members voting to hike. Only one member switching sides takes prime to 10.75%.
  • 04Inflation eased to 4.3% in July (from 5.0% in June, a ten-month high), which softens — but doesn't remove — the case for a hike.
  • 05On a R1.5 million bond over 20 years, a 25 basis point rise adds roughly R253 per month; on R2.5 million, about R421.

On Thursday 23 September, the South African Reserve Bank's Monetary Policy Committee will decide whether the repo rate stays at 7.00% or moves again. The announcement comes at 15:00, and if the committee votes to hike, prime moves with it — and a variable-rate bond reprices at your next repricing date, which varies by bank and product. That makes this the most consequential Thursday of the year for most homeowners — and for anyone about to apply for a home loan.

How we got here. After a long easing cycle that took prime from 11.75% at its 2023 peak down to 10.25% by late 2025, the direction reversed in May 2026. The MPC raised the repo rate by 25 basis points — the first increase in three years — citing an oil-driven fuel shock that pushed inflation up three months in a row. In June, fuel was up more than 34% year on year and petrol over 31%, dragging annual CPI to 5.0%, its highest reading in ten months.

At the July meeting the committee held rates — but only just. The vote split four to two, with two members arguing for another 25 basis points. Since May, borrowers on variable rates have already absorbed one hike; if September delivers another, that is 50 basis points of tightening in five months.

The picture has shifted since then. Stats SA's July inflation print, released on 19 August, showed annual CPI easing back to 4.3% from June's 5.0%, as the fuel-price relief that arrived mid-year worked through the numbers. That gives the hold camp real ammunition: growth is still weak, and the tightening already delivered takes time to bite. It also matters because South Africa now targets inflation of 3% with a one percentage point tolerance band, a framework adopted in late 2025 — at 5.0% in June, inflation sat a full point above the top of that band; at 4.3%, it sits inside it again.

What it means for your bond. No economist can promise the outcome on the 23rd, and this article isn't a prediction — it's a budgeting exercise. If the MPC hikes, prime moves to 10.75% and variable-rate home loans reprice at their next repricing date. On a R1 million bond over 20 years, that's roughly R168 more per month; on R1.5 million, about R253; on R2.5 million, around R421. Cumulatively, two hikes since May would add roughly R504 a month to a R1.5 million bond compared with what you were paying in April — about R6,000 a year. To run the same exercise at your own bond size, use our rate increase impact calculator.

For buyers, the stakes are slightly different. The bond you qualify for at 10.75% is smaller than the one you qualify for at 10.50%. Getting pre-approved against a rate that a single MPC decision can change is an avoidable problem — worth knowing before you sign an offer to purchase, not after.

What to watch. The July and August inflation prints are the swing factors, along with the oil price. The Governor's post-announcement statement will matter as much as the number itself: a hawkish hold keeps the November meeting (19 November) live. If you want to be ready either way, stress-test your budget at 10.75% now with our bond repayment calculator, and treat a hold as the upside surprise rather than the base case you bank on.

(Last updated 13 September 2026. Rates and inflation figures verified against SARB and Stats SA sources listed below. Repayment examples: 20-year term at prime, no margin — your actual rate may be prime plus or minus a margin.)

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Sources

All repayment figures in the body were independently recomputed from the standard annuity formula (20-year term, prime, no margin) and match the SA Calc repayment table.

Informational disclaimer

This article is for information purposes only and does not constitute financial advice or a prediction of the Monetary Policy Committee's decision. Rate and inflation figures are drawn from South African Reserve Bank and Statistics South Africa publications as listed in Sources; both change over time. Repayment examples assume a 20-year term at prime with no margin and are estimates, not quotes or guaranteed outcomes — your actual rate may be prime plus or minus a margin, and variable-rate bonds reprice at a repricing date that varies by bank and product. Always confirm current rates with the South African Reserve Bank, your lender or a registered mortgage originator before making a financial decision.

Figures as at 13 September 2026. Prime 10.50%, repo 7.00% (SARB, re-verified 12 Sep 2026); illustrative hike scenario prime 10.75%. Last verified: 2026-09-13.