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Where can I find my IRD number?

Last Updated: 05 Dec 2025

An IRD number is an eight-or-nine digit number unique to you. You can find your IRD number on your payslip, on letters or statements from the Inland Revenue or on your KiwiSaver statement.

If you're an ASB customer you can find a record of your Tax Details, including your IRD number, current Resident Withholding Tax rate (RWT), and Prescribed Investor Rate (PIR) in the ASB Mobile Banking app or FastNet Classic internet banking.

To find them in the ASB Mobile app:

  1. Log in to the ASB Mobile app.
  2. Tap the profile icon in the top left corner of the ‘Accounts’ screen.
  3. Tap ‘Personal profile'.
  4. Scroll down and tap 'Tax details' to see your IRD number.

To find them in FastNet Classic:

  1. Log in to your FastNet Classic account.
  2. Click on 'Settings' in the top right of the page.
  3. Click on ‘Personal profile’.
  4. Scroll down and click 'Tax details' to see your IRD number.

You can alter your RWT rate and PIR yourself in FastNet Classic. You can also add your IRD number if ASB does not already have it.

If you need to update your IRD number, the best way to get in touch with us is by sending a message in FastNet Classic. Here's how:

  1. Log in to your FastNet Classic account.
  2. Click on 'Help and contact' in the bottom right hand corner of the page.
  3. Under ‘Messages’, click 'Send a message'.

If you've forgotten your ASB login password, you can reset your password using the ASB Mobile app. Alternatively, you can visit any ASB branch.

Find out more information on RWT and what rate you should use.

Find out more information on PIR and what rate you should use.

For further information please contact the Inland Revenue.

If you’d like to 'store' your IRD number and other important information, such as your passport details and drivers licence, you can save them together in FastNet Classic in your own online vault which can be found under Documents in the menu.

For more ways to get help please see our contact us page.


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