When your child will need an IRD number

You need to apply for an IRD number for your child if they’re under 16 and:

• working part-time
• earning interest on their bank balance or an investment.

Or if your child is under 18 and you’re:

• registering for Working for Families (if you do not supply IRD numbers for your children, payments will stop after 8 weeks)
• applying for child support.

Get an IRD number for your child

You can apply for your child online or download an application form.

Apply for a personal IRD number

If you’re having a baby, you can apply for their IRD number when you register their birth.

How to register your baby