How do I get a total for all my paid invoices between a certain time scale?

Hello there, usertomstevensimpson,

You can filter the date on the Invoice page. Then, click on the Status dropdown and select Paid.

Lastly, click on the Export button to export the Excel file.

Here's an article to help you with your tax return: How to use QuickBooks Self-Employed reports to fill in your tax return.

Let me know if you have other concerns.