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Planned system outage | Our online services (including myIR and submitting information using software providers) will be unavailable from 6am Saturday 14 to around 6pm Sunday 15 March while we complete some system upgrades. Planned system outage in March 2026

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Child support

Work out how much you might get or pay with a child support formula assessment, and see the costs and rates the formula is based on.

Last updated: 30 Apr 2025
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