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End of tax year We’re sending income tax assessments out from late-May until the end of July. Find out more

If you estimated your current taxable income for your child support and now want to cancel it, use this form. You can cancel your estimate before or during the child support year you estimated for, not afterwards.

Gather your information

You'll need your:

  • IRD number
  • current address
  • contact details
  • year for cancelling.

Download and fill in the form

Send the form to us in myIR

Send your completed form to us in myIR.

Make sure you let us know the message is for child support. Attach your completed IR111 form and any supporting documents to the message.

You do not need to sign the form when sending it to us in myIR.

How to send a message in myIR

What happens next

When you cancel your estimate we recalculate your child support assessment using your original income. 

You may have to make a payment to catch up. This will show on your statement of account.

Check you've included your correct information and any documents we need. Sign the form and send your documents to us at:

Child Support
PO Box 39010
Wellington Mail Centre
Lower Hutt 5045

Child support - contact us