Growth across the Commonwealth Bank of Australia insurance portfolio has driven inforce premium 3.1% higher during the March quarter to $1.55 billion.

The company last week released first-quarter insurance results amid a wider trading update.

It said group general insurance premiums increased 1.8% during the quarter to $398 million, while retail life premiums rose 2.3% to $829 million.

Strong growth in wholesale life insurance saw inforce premium rise 7.1% to $318 million.