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Planned myIR outage We’re carrying out maintenance work on myIR over the weekend, and there may be an outage or disruption of service between midnight and 4am Sunday morning.

Budget 2024 | The Government has confirmed changes and provided more information on FamilyBoost. Find out more: FamilyBoost

Budget 2024 | The Government has confirmed changes to personal income tax, the independent earner tax credit, in-work tax credit, and the minimum family tax credit. Find out more: Personal income tax threshold changes

Before you start

You’ll need:

  • the IRD number to be registered
  • your contact details
  • your BIC (business industry classification) code
  • the date you'll start paying interest.

In myIR, select 'I want to...'

Select 'Register for new tax accounts'

This is under ‘Registration, application and enrolment’.

Fill in the form

If you pay more than $5,000 a year in interest as part of your taxable activity, select 'Resident withholding tax on interest (IPS)'.

If you’re deducting RWT on dividends treated as interest or Māori authority distributions, select 'Resident withholding tax (RWT)'.

Fill in your contact details, address and bank account, if needed. You’ll also need to give us specific details about your RWT account.

Submit the registration

Confirm your information is correct then click 'submit'.

Log in to myIR

You can either:

  • complete the registration online
  • download and fill in the form Resident withholding tax – interest payer registration – IR450. Post it to one of the addresses on the form. Remember to take a copy for your records.

What happens next

Submissions take up to 10 days to process.

We’ll contact you if we need more information. Your resident withholding tax account will be available in myIR after your application is processed.

Last updated: 21 Apr 2021
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