Hibernian Life's operating profits jumped to £37m sterling in the first six months of this year from £8m a year earlier, according to figures from its parent company Aviva. But insurance profits fell from £86m to £80m.
Total new business sales in Ireland rose by 62% to £889m, with sales through AIB as a results of its merger with Ark Life almost doubled to £435m.
Aviva said the increase was helped by a a sales initiative on life savings products and increased pension sales.
Life sales were up just over 10% to £149m while pension sales jumped 52% to £305m.
New business profits moved up from £11m to £14m as margins fell, though the company says margins have improved recently.
Meanwhile, Aviva, Britain's largest insurer, reported an 8% drop in interim operating profit as the cost of Britain's heavy flooding affected its general insurance business and overshadowed growth in life.
Operating profit, on a European embedded value (EEV) basis, fell to £1.54 billion from £1.7 billion a year ago.
Aviva, hit by June's floods and January's Kyrill storm, said first-half profit from its general insurance and health business dropped 34%.