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Automatically issued income tax assessments and individual income tax returns - IR3s

The tax year is from 1 April to 31 March. The aim is that you pay the right amount of tax at the right time so that you don’t overpay during the year or have a bill to pay at the end of the tax year.

After the end of the tax year we’ll send you 1 of the following.

  • An automatically issued income tax assessment telling you if you have paid the right amount of tax, have a refund, or tax to pay. We'll send most between 28 May and 4 June if you use myIR. If you don't use myIR, you'll get it later by post. If we’re waiting on more income information from you then we'll send it by July.
  • A request for you to provide or confirm information about your income. We'll send them between 28 May and 4 June.
  • A request to complete your Individual income tax return - IR3. We'll send them between 22 and 28 March.

You might not get one of these at the same time as last year or at the same time your family and friends receive theirs. If you use myIR, you’ll get it faster than by post.

 Automatically issued income tax assessment 

Timeline for the end of tax year assessments and requests

If you get a tax bill

There are common reasons why you may get a tax bill. Find out what these are and how to pay it if you do.

Refunds and tax bills

In some situations we will automatically write off tax owing.

Automatic write-offs 

If you're due a refund

We pay refunds from the end of May to the end of July when we process income tax assessments, so not everyone will get theirs at the same time.

Refunds and tax bills

Update your details

Keeping your details up to date means you’ll get your income tax information faster, and we'll pay any refund owing straightaway.  

Check in myIR that your email address, postal address and bank account information are up to date.

Update your email address

Update your postal address

Update your bank account details

Last updated: 30 Mar 2021
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