South Africa’s big three banks poised to weather U.S.-Iran war fallout, Fitch says

South Africa’s largest banks — Standard Bank, Absa, and First National Bank (FNB) — along with their holding companies, are well-equipped to absorb the economic spillovers from the escalating U.S.-Israeli war against Iran, according to a new report from Fitch Ratings. The credit rating agency praised the lenders’ strong domestic franchises, geographic diversification, healthy profitability, and robust capital and liquidity buffers as key shields against external shocks.

The assessment comes as the conflict in the Middle East continues to roil global energy markets, pushing oil prices above $87 a barrel and feeding inflationary pressures across import-dependent economies. For South Africa, the spillovers have been particularly acute: headline inflation jumped to 5.0% in June 2026, up from just 3% in February, prompting the South African Reserve Bank (SARB) to hike its repo rate by 25 basis points to 7% in May.

Rate Path and Growth Outlook

Fitch forecasts one additional 25-basis-point rate increase by the end of 2026, followed by a cumulative 50-basis-point cut by the end of 2027. This policy trajectory, combined with accelerating real GDP growth — which Fitch projects at 1.3% for 2026, up from 1.1% in 2025 — should keep the banks’ profitability metrics broadly stable in the near term. The agency notes that higher interest rates typically boost net interest margins, while the modest economic recovery supports loan volumes and fee income.

Asset Quality Improving, Buffers Intact

Despite the challenging macro environment, asset quality is showing signs of improvement. Impaired loan ratios remain elevated — a legacy of South Africa’s prolonged post-pandemic sluggishness and high household debt — but they are on a declining trajectory. Fitch emphasizes that these problem loans are adequately covered by specific loan loss allowances, which take into account tangible collateral and realistic recovery prospects.

Moreover, pre-impairment operating profits provide a substantial cushion to absorb any spike in loan impairment charges and sustain internal capital generation. As of end-2025, the Common Equity Tier 1 (CET1) capital ratios of the major banking groups ranged from 12.0% to 13.1% (excluding unappropriated profits; for Investec Limited, the figure reflects end-1Q26). These levels are comfortably above the regulatory minimums set by the SARB.

Liquidity is equally sound. The sector’s net stable funding ratio (NSFR) stood at 117% and its liquidity coverage ratio (LCR) at 161% as of end-May 2026 — both well above the 100% regulatory thresholds, indicating that banks have ample short-term and long-term funding to withstand stress.

New Loss-Absorbing Debt Class

Fitch also highlighted a significant regulatory development: the five major banking groups have begun issuing a new debt instrument known as FLAC (Funding for Loss Absorption and Capital). This debt class is designed to be converted into regulatory capital or written down during a bank resolution, providing an additional layer of protection for depositors and creditors. The requirements are being phased in over six years, with banks required to meet 60% of their base requirement by end-2028 and full compliance by end-2031. This gradual implementation gives lenders time to adjust their funding structures without disrupting market access.

Sovereign Upgrade Lifts Bank Ratings

In a related development, Fitch upgraded the Long-Term Issuer Default Ratings (IDRs) of the banks and their holding companies to ‘BB’ with a Stable Outlook in June 2026, up from ‘BB-’ with a Stable Outlook. The upgrade followed a similar sovereign rating action, reflecting the easing of the sovereign constraint on the banks’ standalone credit profiles. In emerging markets, bank ratings are often capped by the sovereign rating due to the implicit link between government and financial system health; the sovereign upgrade thus unlocked higher ratings for the banks.

The Stable Outlooks on the banks’ Long-Term IDRs mirror that of the sovereign, signaling that Fitch does not expect any near-term deterioration in either South Africa’s creditworthiness or the banks’ fundamental strength.

Broader Context: War, Oil, and Emerging Markets

The US-Iran war — which began with Israeli airstrikes on Iranian nuclear facilities and has since expanded to include naval skirmishes in the Persian Gulf and attacks on commercial shipping in the Strait of Hormuz — has driven oil prices to their highest levels since early 2023. For South Africa, a net oil importer, the pass-through effect has been severe, raising fuel and transport costs and feeding into core inflation. However, Fitch’s report suggests that the banking sector’s resilience is not solely reliant on domestic economic conditions; the major banks also have operations across the African continent, as well as in the UK and Asia, which provide revenue diversification and reduce concentration risk.

The rating agency concluded that while the war presents a clear downside risk to South Africa’s growth and inflation outlook, the banking system’s capital, liquidity, and earnings buffers are sufficient to absorb the shock without triggering any systemic distress. “The sector’s strong franchises, sound risk management, and proactive regulatory framework make it one of the more resilient banking systems in emerging markets,” the report stated.

As investors watch the next moves from the SARB and the evolving geopolitical situation, the Fitch assessment offers a measure of reassurance — at least for now — that South Africa’s financial backbone remains intact.

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