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The tax year is from 1 April to 31 March. After the end of the tax year, we work out if: 

  • you’ve paid the right amount of tax  
  • you have tax to pay
  • you're due a refund. 

We may have enough information to work out your tax for you, or you may need to file an Individual income tax return - IR3. 

Last updated: 25 Sep 2024
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