NZ KiwiSaver employer contribution rate — minimum 3%

By the TaxAccountants.co.nz editorial team · Published 2026-06-06

The compulsory employer rate, how it is calculated on gross PAYE-equivalent earnings, how ESCT trims it before it lands in the fund, and how the employee’s own contribution rate works alongside.

The 3% compulsory employer contribution

The employer must contribute at least 3% of gross PAYE-equivalent earnings for every eligible employee who is a contributing KiwiSaver member. The contribution is calculated on the same gross base used for PAYE — including bonuses, commissions and overtime — and is paid to IRD via payday filing alongside PAYE and the employee’s own KiwiSaver deduction. Employers may contribute more than 3% voluntarily, either as a flat uplift or as a match to the employee’s contribution rate. Source: IRD — KiwiSaver for employers.

ESCT — the tax on the employer contribution

ESCT (Employer Superannuation Contribution Tax) is applied to the 3% employer contribution before it reaches the employee’s fund. The ESCT rate is set by the employee’s prior-year salary plus prior-year employer KiwiSaver contributions and runs at 10.5%, 17.5%, 30%, 33% or 39% — the same marginal bands as personal income tax. A higher-earner with a 39% ESCT rate sees their employer 3% reduced to a net 1.83% landing in the fund. Source: IRD — tax rates for individuals.

Employee contribution rate — 3, 4, 6, 8 or 10%

The employee chooses their own contribution rate from 3%, 4%, 6%, 8% or 10% of gross earnings. The default for new auto-enrolled employees is 3%, and the choice can be changed in writing to the employer. The employee’s contribution is deducted from gross pay before take-home — unlike the employer contribution, it is not subject to ESCT (because it is the employee’s own already-taxed income going in).

Who is an eligible employee

An employer must contribute for an employee who is a KiwiSaver member, is 18 or older, is under NZ Super age, and has not taken a savings suspension. The employer also auto-enrols new eligible employees (subject to the opt-out window). The employer is not required to contribute during a savings suspension, while the employee is under 18, or after the employee reaches NZ Super age unless contributions are part of the employment agreement.

Worked sketch — a $90,000 salary

On a $90,000 gross salary, the employer’s compulsory 3% is $2,700 per year ($51.92 per week). If the employee’s ESCT rate is 30% (typical for salaries in this band), $810 is withheld as ESCT and $1,890 lands in the KiwiSaver fund as the employer contribution. The employee’s own 3% adds another $2,700 from take-home pay (not subject to ESCT). The combined annual contribution into the fund is $4,590 before investment returns.

Related on TaxAccountants.co.nz

• PAYE calculator — see how KiwiSaver and ESCT show up on a payslip.
• NZ income tax rates 2026 — the bands ESCT mirrors.
• Sole trader vs company NZ — sole traders pay no employer contribution on themselves.
• Student loan repayment threshold — another PAYE-line deduction interacting with KiwiSaver.