The financial stress test facing South Africans amid rising interest rates
By JJ van Wyk, Financial Adviser at Momentum Financial Planning
Following the South African Reserve Bank’s (SARB) latest decision to hike the repo rate by 25 basis points to 7%, pushing the prime lending rate to 10.50%, South Africans face a new reality. The question is no longer when rates will fall, but whether their financial plans are resilient enough to withstand a prolonged period of high interest rates and rising living costs.
The current environment highlights the need to shift from a reactive mindset to one of deliberate financial preparedness. The goal is not to predict the next turn of the interest rate cycle but to build a strategy resilient enough to withstand economic uncertainty.
Understanding financial stress testing
In the banking sector, institutions regularly assess their resilience against a range of potential economic scenarios, including changing interest rates, inflationary pressures, and global market uncertainty, to ensure they remain prepared for evolving conditions.
In the current climate, households need to adopt a similar approach. True financial resilience is not merely a function of how much you earn; it’s determined by how your broader financial ecosystem reacts when macroeconomic conditions shift. A robust financial plan should act as an anchor, allowing individuals to maintain stability rather than making desperate, short-term compromises whenever an economic headline changes.
To stress test your personal financial health against a prolonged, high-interest-rate baseline, there are five core questions you should ask:
- How much of my income is currently going towards servicing debt?
A higher repo rate directly inflates the cost of variable-rate debt, such as home loans, vehicle finance, and credit cards. Calculating your precise debt-to-income ratio reveals how exposed your disposable income is to structural adjustments in borrowing costs.
- Could my budget absorb another interest rate increase?
With the SARB warning that upside inflation risks remain tilted due to volatile fuel prices, food costs, and weather dependencies, further tightening cannot be entirely ruled out. Evaluating whether your monthly cash flow has the elasticity to absorb further pressure is critical for preventative budgeting.
- Do I have sufficient emergency savings if costs continue to rise?
An emergency fund should not be viewed as a passive savings account, but as a strategic shock absorber. In a high-cost-of-living environment, having accessible, liquid capital prevents households from being forced to use high-interest credit to cover unexpected operational shortfalls.
- Am I sacrificing long-term financial goals to manage short-term pressures?
Under sustained financial strain, the instinctive response is often to pause retirement contributions or liquidate investments to ease short-term cash flow constraints. While sometimes necessary in acute crises, doing so compromises compounding growth and creates structural deficits in your future wealth.
- Is my retirement strategy still on track in a higher inflation environment?
Persistent inflation quietly erodes the real purchasing power of capital over time. If your retirement strategy has not been explicitly calibrated to outpace prolonged inflationary trends, the ultimate value of your nest egg may fall short of your lifestyle requirements.
The role of an advice-led practice
Answering these questions objectively requires moving past the emotional noise of daily economic reporting. This is where the structural value of professional financial advice becomes evident.
A qualified financial adviser does not assist clients by accurately predicting inflation statistics or guessing the outcome of the next Monetary Policy Committee meeting. Rather, their role is to provide an advice-led framework that constructs, monitors, and adapts a personalised plan capable of functioning across a variety of potential economic outcomes.
By proactively stress testing your portfolio, an adviser can help optimise debt repayment structures, identify latent vulnerabilities in your cash flow, and recalibrate investment allocations to ensure that long-term milestones remain viable. Navigating an uncertain financial landscape successfully is less about waiting for external conditions to improve and more about ensuring your personal framework is engineered to survive them.

