Use IR470 to apply for an administrative review of a child support formula assessment.

Use IR472 to request a review of a child support exemption.

Use IR954 to apply for child support when you are not the child’s parent and care for the child at least 35% of the time.

Use IRD’s current public page to choose an application method for a child support formula assessment.

Use IR129 to tell IRD not to collect some or all payments owed to you by one liable person.

Only the person receiving domestic maintenance can ask for it to be cancelled.

A receiving carer can cancel child support in myIR or by using the optional IR107 paper form.

Tell IRD about changes that may affect your child support using myIR, by phone or with the optional IR116 form.

IR174 explains when a child support matter may go to the Family Court and outlines the review, appeal and court process.

Use IR471 to respond as the other party to a child support administrative review.

Use IR178 to provide financial information when applying for or responding to a child support review.

If your current-year income is expected to be at least 15% lower, you may be able to submit an income estimate.

IR148 explains when long-term hospital care, rehabilitation or illness may support a child support exemption.

IR1023 explains when a non-parent carer may qualify for and apply for child support.

Guidance for liable parents in prison who may qualify for a child support exemption or reduced payments.

IR104 is used to estimate income for the 2027 child support year when expected income is at least 15% lower than the assessment income, or to change an earlier estimate.

Use IR470B with IR470 when applying under Ground 11 for re-establishment costs.

Use IR470A with IR470 when applying under Ground 5 for high contact costs.

IR100 explains New Zealand child support for paying parents and receiving carers, including assessments and payments.

A guide to child support administrative reviews, including review grounds, evidence and the decision process.

A guide to recognised care and how ongoing care arrangements affect child support formula assessments.

Use IR119 or myIR to formally object to a child support decision or assessment, usually within 28 days.

Use IR105B to apply for a permanent child support exemption where the child was conceived as the result of a sex offence against the applicant.

Use IR105 to apply for a child support or domestic maintenance exemption while in prison or hospital.

IR120 helps IRD confirm a child’s recognised care arrangements when more information is needed.

Use IR102 to register a voluntary child support agreement for Inland Revenue to administer.

Use IRD’s current public guidance to set up a child support payment plan.

Use IRD’s current public instructions to stop receiving child support payments from one parent.

An overview of New Zealand child support, including payment arrangements, eligibility and ways to apply.