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Use this process for companies, limited partnerships, general partnerships, joint ventures, Māori authorities, estates, trusts, clubs and societies that need an IRD number.

Check if your organisation is considered offshore (for example, because related parties are based overseas), because offshore organisations use a different process.

Onshore or offshore?

Before you start

Confirm your Business Industry Classification Code (BIC) if you’re in business.

Find your BIC.

Business Industry Classification Code - businessdescription.co.nz

Get your documents ready. You need to get copies of your documents to apply (these can be PDFs).

Find out what you need for an onshore or offshore IRD number.

Documents for organisations and non-individual IRD number applications

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 we post it.

You can track the progress of your application with our submission tracking tool.

Find a submission

Your 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: 25 May 2026
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