Almost half of the people questioned in a survey would increase their contributions to KiwiSaver by 1 per cent - backing moves by the government's money help service to make the savings scheme more flexible.
ANZ bank questioned 2000 people and found 20 per cent would definitely increase it while a further 27 per cent would likely do it as some point in the future.
Currently employed KiwiSaver members can choose to contribute either 3, 4 or 8 per cent of their pay.
Extra payments can be made to a person's KiwiSaver accounts but the member has to organise it directly with their KiwiSaver provider.
That has led to concerns over KiwiSaver's inflexibility and whether it is stopping people contributing more money or contributing any money at all because the minimum is too high.