Thursday, October 29, 2026 SOUTH AFRICA Edition Independent Journalism
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South Africa's borrowers wait as rate reform hits legal snag
Business & Economy

South Africa's borrowers wait as rate reform hits legal snag

Benchmark rate switch proceeds despite stalled amendment bill in Parliament

South Africa’s borrowers and lenders are watching a legislative hold-up that could touch the way interest is calculated on contracts across the financial system, and the institutions behind the country’s benchmark rate reform are now drawing up a fallback.

The South African Reserve Bank confirmed that it and other financial institutions are preparing a backup plan in case the legislation needed for the switch to a new rand benchmark interest rate is not passed by the end of the year. The work is being coordinated through the Market Practitioners Group, a body that brings together the central bank, the Financial Sector Conduct Authority and private-sector firms. In an emailed response to questions, the Reserve Bank said the group is considering options to ensure the transition can proceed smoothly even if the law is delayed.

“Any changes to the transition timetable or related arrangements would be communicated to the market in a timely manner,” the bank said.

At the heart of the matter is a change most people will feel only through their loan statements and investment contracts. The South African rand overnight index average, known as Zaronia, is scheduled to replace the Johannesburg interbank average rate, or Jibar, at the end of this year. Jibar underpins a wide range of existing contracts, and some of those agreements are difficult to amend, which is why lawmakers included special provisions to help shift them across.

That legislation, the General Finance Laws Amendment Bill, hit a snag last month. Parliament paused its consideration of the bill after a September 17 Constitutional Court ruling that requires lawmakers to facilitate adequate public participation in the legislative process. The pause was intended to make sure the bill complies with that judgment.

For the banks, firms and ultimately the borrowers and lenders who rely on these rates, the question is whether the calendar can hold. The Reserve Bank moved to reassure them that the underlying direction of the reform has not shifted.

“Any delay in the legislative process would not change the direction of the transition, and market participants should continue to adopt Zaronia and reduce their Jibar-related exposures,” the central bank said. It also stressed that Zaronia remains the preferred successor rate to Jibar.

Meanwhile, practical groundwork continues. As part of the switch, the Market Practitioners Group has selected FTSE Russell to administer Term Zaronia, a version of the benchmark designed to give borrowers and lenders greater certainty about future interest payments. For people and businesses planning around loans or lending arrangements, that certainty is the point of the exercise: knowing in advance what an interest payment will look like, rather than discovering it after the fact.

FTSE Russell is already publishing a test version of Term Zaronia on its website. According to the central bank, this allows banks and other market participants to track the benchmark as trading in products linked to it develops, giving firms a chance to familiarise themselves with the new rate before it becomes the standard.

The combination of a firm end-of-year target and a stalled bill explains why contingency planning has moved to the foreground. The Reserve Bank’s message to the market pairs two ideas: the legal timeline may waver, but the destination does not. Institutions are being told to keep moving toward Zaronia and to wind down their exposure to Jibar, while the Market Practitioners Group works on arrangements that would keep the transition on course if parliament’s timetable slips.

For now, the test version of Term Zaronia is live, the backup plan is being shaped, and the message from the central bank to the people and firms whose contracts hang on the outcome is one of continuity: the switch is still coming, with or without the bill on schedule.

Q&A

Why was Parliament's consideration of the General Finance Laws Amendment Bill paused?

Parliament paused its consideration after a September 17 Constitutional Court ruling that requires lawmakers to facilitate adequate public participation in the legislative process, so the bill could be checked for compliance with that judgment.

What is Zaronia and what does it replace?

Zaronia is the South African rand overnight index average, scheduled to replace the Johannesburg interbank average rate (Jibar) at the end of this year. Jibar underpins a wide range of existing contracts, some of which are difficult to amend.

What fallback is being prepared if the legislation is delayed?

The South African Reserve Bank and other financial institutions, coordinated through the Market Practitioners Group, are preparing a backup plan to ensure the transition can proceed smoothly even if the law is not passed by the end of the year.

What role does FTSE Russell play in the transition?

FTSE Russell was selected by the Market Practitioners Group to administer Term Zaronia, a version of the benchmark designed to give borrowers and lenders greater certainty about future interest payments. It is already publishing a test version on its website so firms can familiarise themselves with the new rate.