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Planned system outage - 12 September 2026 | Our online services including myIR, self service phone lines and gateway services will be unavailable on Saturday 12 September, 2026 from 1pm to approximately 10.30pm while we complete a planned system update. We apologise for any inconvenience this may cause.

You can change your accounting basis in myIR.

If things change in your business or organisation you might want to change your accounting basis to another one you're eligible for.

When you must change

You must change your accounting basis if both of these apply to you:

  • you are using the payments basis
  • your annual sales increase to more than $2 million.
Last updated: 28 Apr 2021
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