Making KiwiSaver compulsory and requiring a higher contribution rate should make New Zealanders better off at retirement - but can they afford to do it?

The National Party plans to make KiwiSaver compulsory for all workers, if re-elected, as part of a suite of changes that would cost more than $1 billion over four years.

Making KiwiSaver compulsory and requiring a higher contribution rate should make New Zealanders better off at retirement - but can they afford to do it?

The Prime Minister believes it would be difficult for other parties to argue against the KiwiSaver changes National is proposing, and is keen to see some cross-party buy-in.

Business leaders say workers could end up wearing the cost of KiwiSaver changes the National Party plans to bring in if it's re-elected in November.

Business leaders say workers could end up wearing the cost of KiwiSaver changes the National Party plans to bring in if it's re-elected in November.

National proposes making KiwiSaver compulsory for all workers.

With National's KiwiSaver changes coming alongside rhetoric aimed at raising the retirement age, Labour has ruled out any changes to superannuation settings.

Finance Minister Nicola Willis will be answering your questions about Kiwisaver on Morning Report shortly. Listen in the player above, the RNZ app or your local frequency.

Lower and median earners may not need to save the full 12%.