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End-of-year arrangements Our offices and phone lines will close down over the holiday season, but our website, self-service 0800 number and myIR will remain available. Find out more

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These instructions are for New Zealand resident companies, partnerships, superannuation schemes, Māori authorities, estates, trusts, clubs and societies that need an IRD number.

Confirm your Business Industry Classification Code

You'll need your Business Industry Classification (BIC) Code if you're in business. Find your BIC Code on the Business Industry Classification Code website.

Business Industry Classification Code -

Get your documents

You'll need to get copies of documents before you apply for your IRD number. These can be PDF files. Find out what documents you'll need on the following page.

IRD numbers for businesses and organisations

Apply for your IRD number online

Apply for a non-individual IRD number

If you're applying for an estate IRD number, select the 'Trust' organisation type. Then you can select that it's an estate.

You can complete a paper application and send this to us.

What happens next

  • We'll contact you if we need more information about your registration.
  • We'll email or post your IRD number to you. It can take 20 working days to arrive if you choose to have it posted.

My responsibilities

  • Keep your IRD number where you can easily find it.
  • Set up a myIR account for your business or organisation when you have your IRD number.
  • Tell us about any changes. The easiest way to update your details is in myIR. You can also send us a message in myIR and attach any required documents to it.
Last updated: 09 Jun 2021
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