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Planned system outage | Our online services (including myIR and submitting information using software providers) will be unavailable from 6pm Friday 14 to approximately 4pm Sunday 16 March while we complete some system upgrades. The outage will not affect any saved drafts or web requests in myIR, our website, general tools and calculators. We apologise for any inconvenience this causes.

Hamilton (Home Straight) public counter is temporarily closed | Our Hamilton Public Counter will be closed from Monday 3 March 2025 and re-opens on Monday 17 March 2025. For anything urgent, you can call our contact centre.

This page contains links to guidelines and reports, including the Intergovernmental Agreement and Memorandum of Understanding, that are available for download or print.

Intergovernmental Agreement and Memorandum of Understanding with the United States

All documents are in PDF and available for download or print from the links below.


Guidance for financial institutions

All documents are in PDF and available for download or print from the links below.


See the glossary of FATCA terms:

FATCA glossary

Last updated: 28 Apr 2021
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