NZ Child Support Calculator
Estimate your child support payments in New Zealand. Enter your income and the other parent's income, number of children, and care nights to get an estimate of the annual payment under the IRD formula.
NZ Child Support Calculator — Payment Estimator 2026
Free New Zealand child support calculator. Estimate annual and weekly child support payments based on income, number of children, and care arrangements.
Assessable Income$23,022Income minus living allowance
Child Support Rate14%of combined assessable income
Care Adjustment0%91 nights/year with you
Annual Payment$1,823$35/week
Income & Payment Breakdown
This is an estimate only. The IRD uses a more detailed formula including living allowance adjustments, multi-parent allocation, and annual indexation. The living allowance for 2025-26 is $46,978. Care nights between 128 and 182 receive a partial adjustment; 183+ nights shift the payment to the other parent.