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Income tax for businesses and organisations

How to file an estate or trust return on behalf of someone who has died.

Notify us of the death

Before you can file a final income tax return for someone who has died, you need to notify us of the death.

Let us know someone has died

Find out if you need to file an estate or trust return

Contact us on 0800 227 774 to find out if you need to file an estate or trust return for the person who has died.

Gather your information

You will need the IRD number of the trust or estate.

Contact us on 0800 227 774 if you do not know this.

If you do not have an IRD number for the trust or estate, please apply for one.

IRD numbers for businesses and organisations

File an estate or trust return

File an IR6 trust or estate income tax return

I'm looking after the affairs of someone who has died

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Last updated: 20 Apr 2026
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