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myIR, payments and more


Child support
Turuki Tamariki

Your child support assessment

Find out about child support formula assessments, child support reviews, how much you might pay or receive, what to do if you disagree and how the formula works for back-year assessments.

Child support formula assessments and allowances

Find out about the child support formula assessment, the types of allowance available and the annual adjustment rates.

Work out the child support you might pay or receive

Use our calculators to work out how much you might have to pay or receive under the child support formula and to work out the total nights of care for a child over a twelve month period.

Child support reviews

Find out about the different child support reviews available, the process involved and how to apply or respond to a review.

If you don't agree with a child support decision or assessment

Find out what to do if you disagree with a decision or assessment and how to make an objection.

Assessments under the old child support rules

Find out how the child support formula worked before 1 April 2015.