Beazley said it expects its first half results to be materially ahead of expectations, with pre-tax profit to be no less than £35m.
This is due mainly to the effect of reporting under IFRS, the insurer said.
Beazley added that underwriting conditions have generally remained favourable.
Chief executive Andrew Beazley said the company's performance during the first half of 2005 had been strong which, when combined with the impact of the new accounting standards, will "deliver excellent results" for the first half.
But he added that due to the potential additional volatility within the results when reporting under IFRS and because it is in the middle of the hurricane season, "it would be incorrect to assume that the results of the first half will be repeated in the second half”.
