How do I change the tax year I'm accounting for?

Welcome to the QuickBooks Community, @iainsmith1234-ho. I'd be happy to share with you the steps on how you can change your tax year in QuickBooks Self-Employed (QBSE).

Follow along below to get started:

1. Sign in to your QBSE company. 
2. Next, navigate to the Gear icon.
3. Then, click Tax Profile.
4. From there, enter the necessary changes. 

For more information about changing your tax year, you can open this article: QuickBooks Self-Employed UK Tax Profile Set Up.

Just in case you want to view your tax information from each quarter to wrap things up at the end of the year, please visit this link for the detailed steps: Get quarterly and annual tax info from QuickBooks Self-Employed.

Click the Reply button below if you need further assistance in changing the tax year in QBSE. I'll be always around to back you up. Have a good one.