Kiwisaver could have some room for improvement with the number of people contributing dropping

A Financial Markets Authority report shows about two-million-people contributed to KiwiSaver for the year to March - down 1.3-percent on the year before

30-percent of members aged between 18 and 65 didn't contribute at all during the year.

FMA Chief Executive Samantha Barrass improving this isn't a job for just one organisation.

She says everyone in the industry needs to work on it together, alongside Government.