Free Employer PAYE Cost Calculator for New Zealanders
The all-in cost to your business of paying someone is more than the gross. The calculator adds employer KiwiSaver and ESCT to the gross to show the real outflow per pay run and annualised.
Your pay run
Based on $2,500 gross fortnightly, 3.5% employer KS.
About our Employer PAYE Cost Calculator
Most NZ small-business owners think of "salary" as the cost of an employee. The actual cost runs 7-10% higher once the 3.5% employer KiwiSaverKiwiSaverNZ workplace retirement savings scheme. From 1 April 2026, minimum employee and employer contributions are both 3.5% of gross pay (rising to 4% in 2028); the government adds 25c per $1, capped at $260.72/yr.View in glossary → match and ESCTESCTEmployer Superannuation Contribution Tax; tax on the employer's KiwiSaver contribution.View in glossary → are added in. The calculator surfaces both numbers, plus the per-pay-period split, so the budgeting math matches the actual outflow.
Move the gross-pay slider to see how the all-in cost changes with the wage offer. ESCT bracket boundaries (at $16,800, $57,600, $84,000, $216,000 of employee annualised income) cause small step changes in the marginal cost as employees cross between bands.
How to use it
Enter the gross pay per period (weekly, fortnightly, or monthly) and the pay frequency. Adjust the employer-side KiwiSaver percentage if you offer above the 3.5% minimum.
The result panel returns per-period employer cost (gross + KS + ESCT) plus the annualised figure. PAYE on the employee is also shown, but it is the employee’s tax (deducted from their pay), not the employer’s cost.
Why use it
For small-business owners considering hiring or pay rises, the all-in cost matters more than the gross. A "$60,000 salary" actually costs the business around $64,500-$65,500 once KS match and ESCT are added. Knowing the gap before the offer is made avoids cash-flow surprises.
The maths behind it
Employer cost = Gross pay + Employer KiwiSaver match + ESCT Gross pay is what the employee sees on the contract. Employer KiwiSaver is on top, at the legal minimum 3.5% from 1 April 2026 (rising to 4% on 1 April 2028). ESCT is a tax on the employer KiwiSaver contribution itself, calculated using a separate ESCT-rate band based on the employee’s gross-plus-employer-contribution annualised income. The calculator returns per-period and annualised totals so you can budget the all-in cost.
Worked example
Trish runs a small architecture practice in Oamaru, paying her senior drafter $2,500 fortnightly gross.
Gross fortnightly pay: $2,500 ($65,000 annualised). PAYE deducted from the employee at the standard 2026/27 brackets: roughly $458/fortnight ($11,896/year).
Employer KiwiSaver at 3.5%: $87.50/fortnight ($2,275/year). ESCT on that contribution at the 30% ESCT rate (the band $57,601-$84,000 of annualised income-plus-employer-KS): $26.25/fortnight ($683/year).
Trish’s all-in cost per fortnight: $2,500 + $87.50 + $26.25 = $2,613.75, or $67,958 annualised. The 7.6% gap between gross and employer cost is roughly the same gap most NZ small employers see.
Things to keep in mind
- Employer KiwiSaver is mandatory. Employers must contribute the minimum match for any KiwiSaver-member employee. Opting out is not an option for the employer; the employee can opt out of KiwiSaver itself but if they are in, the match is owed.
- ESCT is the employer’s tax. ESCT is paid by the employer on the employer KiwiSaver contribution, at the rate matching the employee’s annualised income-plus-employer-contribution. The employee does not see ESCT on their pay slip; it sits in the employer’s payroll obligation alongside PAYE.
- ACC employer levy is separate. Businesses pay an annual ACC work levy (variable by industry classification, typically 0.2-2.5% of payroll). The work levy is not in this calculator; ACC sends the invoice annually based on prior-year payroll data.
- Other on-costs sit on top. Workers compensation insurance, professional indemnity, training budgets, equipment, and software seats all add to the true cost of an employee. NZ employers typically estimate the all-in employee cost at 110-120% of gross, depending on industry.
NZ-specific notes
FAQs
What is ESCT?
Employer Superannuation Contribution Tax. A tax paid by the employer on the employer KiwiSaver match, at a rate matching the employee’s annualised income-plus-employer-KS. ESCT is the employer’s cost; it does not appear on the employee’s pay slip.
How does the all-in cost compare to gross?
For an employee earning $65,000 with the 3.5% match, the all-in cost is roughly 7-8% above gross. For an employee earning $200,000+ (where ESCT is at 33%), the gap can reach 9-10% of gross.
Does the employer match increase for higher employee contributions?
No. The legal minimum is 3.5% (rising to 4% in 2028). Employers can voluntarily match higher rates as a benefit, but most NZ employers stick to the minimum.
Are the figures different for casual or fixed-term employees?
PAYE and ESCT calculations are the same. Holiday pay can be paid as 8% PAYG (8% on each pay run instead of accruing), which changes the cash-flow timing but not the total cost.
Is ESCT deductible for the business?
ESCT is a tax cost, deducted by IRD from the employer’s payroll filings. It is a cost of doing business and is allowable as an expense for company income tax purposes.
References & sources
- Inland Revenue, "Employer Superannuation Contribution Tax (ESCT)". ird.govt.nz
- Inland Revenue, "KiwiSaver changes (April 2026 contribution rates)". ird.govt.nz
- ACC, "Understanding levies if you work or own a business". acc.co.nz
- Employment NZ, "Leave and holidays". employment.govt.nz