Regan said AMP would rely more on its link to employers where it saw stronger prospects for more money to be ploughed into the retirement savings scheme.
"AMP has particular strengths in the employer chosen schemes. Members in these schemes are more active savers, so there are stronger growth prospects in terms of growth in assets under management."
The AXA scheme will cease to take new members as of Friday with existing AXA KiwiSaver members transferred to an enhanced AMP scheme.
AXA customers will receive a transfer pack in May with the process expected to be completed by August.
Regan said the enhanced scheme would use AXA's multi-manager investment approach while taking on AMP's technology and customer service approach.
AMP has more than 260,000 KiwiSaver Scheme customers across the two KiwiSaver Schemes which have a combined market share of 18 per cent of market share of funds under management.