What HSBC's numbers actually show

Revenue rose six per cent to $18.6bn, driven by continued momentum in the bank's wealth division, which pulled in $39bn in net new money during the quarter, according to the company's results published on 5 May. Of that, $34bn came from Asia.

Net interest margin edged up a single basis point year-on-year to 1.6 per cent. HSBC also upgraded its full-year 2026 net interest income target to approximately $46bn, from "at least $45bn" previously, a shift the bank attributed in part to central banks' reluctance to cut rates amid conflict-driven inflation.

But the top-line gains were swallowed by a $1.3bn credit charge, up from $400m in Q1 2025. Roughly $300m of the increase was linked directly to the Iran conflict, according to the bank's disclosure. A separate $400m fraud-related loss in the UK, tied to securitisation financing exposure the bank said totalled $3bn, accounted for much of the remainder. HSBC did not identify the company involved.

Pre-tax profit of $9.4bn (approximately £6.5bn) fell $100m short of the same period last year and missed the $9.6bn consensus compiled by analysts.

Perhaps more telling than the backward-looking charge was the forward guidance. HSBC lifted its full-year 2026 loan-loss forecast to 45 basis points, meaning the bank now expects $4.50 of every $1,000 lent to go unpaid. The bank cited "ongoing uncertainty in the outlook" as the reason.

A pattern across the Big Five

HSBC's provision hike does not sit in isolation. All five of the FTSE 100's largest banks raised loan-loss reserves during the first quarter, as reported by City AM.

Barclays (LSE: BARC) set aside £823m for potential loan losses, up from £643m a year earlier. Of that, £228m related to a UK fraud charge connected to the bank's exposure to MFS, according to its quarterly filing.

Lloyds Banking Group (LSE: LLOY) provisioned £295m for sour loans. The bank attributed £101m of the total to "deterioration in economic outlook as a result of the Middle East conflict."

Standard Chartered (LSE: STAN) booked $296m in credit impairment charges, with $190m classified as Iran war "overlays."

NatWest Group (LSE: NWG), the fifth member of the Big Five, also raised provisions during the quarter, continuing the sector-wide pattern.

The simultaneous move is significant. Banks do not coordinate provisioning decisions, but they draw on overlapping macroeconomic models. When all five reach the same conclusion, it reflects a shared reading of deteriorating credit conditions rather than idiosyncratic risk at any single institution.

Why credit charges are climbing, and what the Iran conflict has to do with it

The Iran conflict has introduced two distinct channels of credit risk into UK banking.

The first is direct. Trade disruption and energy price volatility have hit sectors with Middle Eastern supply-chain exposure, raising the probability of default among corporate borrowers. HSBC's $300m Iran-related overlay and Standard Chartered's $190m equivalent reflect lenders modelling higher losses in those portfolios.

The second channel is indirect but arguably more consequential for the domestic economy. Conflict-driven inflation has stalled the interest rate cuts that markets had expected through 2025 and into 2026. The Bank of England's most recent Credit Conditions Survey, published in Q1 2026, indicated that lenders reported a tightening in credit availability for small businesses, with expectations of further tightening in the quarter ahead.

Higher-for-longer rates increase debt-servicing costs for borrowers already stretched by post-pandemic balance sheet repair and the cumulative effect of prior rate rises. HSBC's decision to upgrade its net interest income forecast to $46bn is the mirror image of the same dynamic: the bank earns more on its loan book precisely because borrowers are paying elevated rates for longer. But those elevated rates also make defaults more likely, hence the simultaneous increase in provisioning.

The fraud-related charges at HSBC and Barclays add a further layer. While these are specific to individual exposures, the scale, $400m at HSBC and £228m at Barclays, suggests that stressed market conditions can accelerate the crystallisation of fraud losses that might otherwise have remained latent.

What this means for SME borrowers

For UK SMEs and scale-ups seeking finance, the practical implications are threefold.

Credit availability is tightening. When banks raise provisions, they are implicitly repricing risk across their loan books. The Bank of England's SME lending data has already shown a contraction in net lending to small businesses in recent quarters. The Q1 provisioning round reinforces that trend. Lenders with higher expected losses have less balance-sheet capacity, and less appetite, to extend new credit to smaller, less-rated borrowers.

Pricing is rising. HSBC's upgraded net interest income target signals that the spread between what banks pay for deposits and what they charge on loans is widening, not narrowing. SMEs without investment-grade credit profiles typically sit at the steeper end of that pricing curve. Prior BF reporting on tightening SME credit lines noted that arrangement fees and covenant requirements were already hardening in late 2025; the Q1 results suggest that process has accelerated.

Duration matters. HSBC's decision to set its full-year loan-loss guidance at 45 basis points, rather than treating Q1 as an outlier, indicates the bank expects repayment stress to persist well beyond the current quarter. For businesses planning capital expenditure or refinancing existing facilities, the implication is that favourable terms are unlikely to return quickly.

None of this means credit has frozen. The Big Five collectively reported robust revenues and remain well-capitalised. But the direction of travel is clear. Five banks, five provision hikes, one quarter. The signal is not subtle.