The increase in KiwiSaver contribution rates has failed to drive people away from the retirement savings scheme, according to the country's largest provider.
John Body, managing director of ANZ Wealth, which owns fund manager OnePath, said it had seen "no evidence" of people dropping out as a result of the change.
From April 1 minimum employee and employer contribution rates increased from 2 per cent to 3 per cent.
Inland Revenue figures show 16,163 new people signed up to KiwiSaver last month, similar to the 16,242 who signed up in March and up from 15,368 in February.
Body said he believed the change had reminded people to sign up to the scheme.