Trans-Tasman insurers battle contract churn while defending profit margins

Suncorp Group (ASX:SUN) updated its FY27 operational outlook, projecting gross written premium growth of around 3%.

The revised forecast follows the loss of a single commercial contract valued at $125 million annually. A weaker New Zealand dollar also adds a 70 basis point drag on top-line performance.

Despite these top-line headwinds, Suncorp Group maintains an underlying insurance trading result margin target in the top half of its 10–12% range.

CEO Steve Johnston attributed long-term operational performance to investments in modern software platforms, data analytics, and artificial intelligence.

Here is how other publicly traded general insurance peers compare across the Australian and New Zealand markets.

1. Suncorp Group (ASX:SUN)

Suncorp Group operates as a simplified, pure-play Trans-Tasman general insurer.

The company expects the full impact of its lost $125 million commercial contract to hit first-half performance, shifting full-year growth momentum towards the second half.

Shares softened slightly to around $19.53 following the investor update.

Management continues to leverage platform investments to maintain underlying trading margins firmly in the top half of its 10% to 12% target range.

2. Insurance Australia Group (ASX:IAG)

Insurance Australia Group (ASX:IAG) stands as one of the largest direct general insurers across Australia and New Zealand.

The business operates key retail brands, including NRMA Insurance and CGU. Insurance Australia Group recently reported an underlying insurance margin of 15.6% for FY24, backed by gross written premium growth of 11.0% to $16.4 billion.

3. QBE Insurance Group (ASX:QBE)

QBE Insurance Group (ASX:QBE) maintains a global general insurance footprint alongside its domestic Australian operations.

The company reported adjusted net profit after tax of US$1.4 billion for FY23, driven by a combined operating ratio of 95.2%. QBE Insurance Group continues adjusting its commercial property and casualty underwriting appetite to mitigate global catastrophe risk exposure.

4. Tower (ASX:TWR)

Tower (ASX:TWR) provides general insurance products direct to consumer and commercial clients across New Zealand and the Pacific Islands.

The insurer upgraded its full-year underlying net profit after tax (NPAT) guidance to between NZ$69 million and NZ$79 million.

Tower attributes its significant margin recovery to tighter risk-based pricing and a large event allowance that went largely unutilised due to lower-than-projected severe storm claims.

The Bottom Line

Top-line premium growth across regional general insurers remains sensitive to corporate contract retention and foreign exchange fluctuations.

While commercial contract movements can create short-term revenue volatility, major operators continue prioritising underlying insurance trading margins through digital platform efficiency, disciplined risk-based pricing, and structured catastrophe exposure management.