KiwiSaver membership is voluntary under current New Zealand law. Inland Revenue says the default employee contribution and matching employer minimum became 3.5% on 1 April 2026 and are scheduled to become 4% on 1 April 2028 for participating members. This rate increase is already in place as a future rule. It does not abolish the opt-out or savings-suspension routes.
National's June 2026 election pledge separately proposes compulsory participation for workers from 1 July 2028 if the party is re-elected. The same party proposes a staged rise to 6% employee and 6% employer contributions by 2032. Neither compulsory membership nor that 6% path has been enacted. Whether another party would support the details cannot be inferred from the announcement.
A current-rate versus enacted-future example
For a participating employee on $75,000 salary at 3.5% on each side, the annual employee deduction is $2,625. A $2,625 employer gross contribution leaves $1,837.50 after a 30% ESCT illustration, using salary plus employer contributions as the assessment proxy. If the member qualifies for the full $260.72 government contribution, annual deposits total $4,723.22. At 4% on each side, on the same salary and tax assumptions, employee deposits are $3,000 and net employer deposits $2,100, making $5,360.72 including the same government amount. The employee's immediate annual take-home is $375 lower if base salary stays fixed. These are deposit calculations, not investment returns.
Contract and eligibility details still matter
An employer's match is subject to ESCT before it arrives in the fund. A total-remuneration agreement can include the employer cost within a fixed package; Employment New Zealand says that is negotiable, while the payment remains due on top of agreed gross salary. No general ban has been enacted. Savings suspensions and member eligibility for the government contribution require separate checks. A hypothetical compulsory rule could change future treatment, but the current proposal does not provide a final legal text to calculate every employment agreement.
