I am having trouble downloading my invoices using the app on my mobile phone

Hello there, gmuk00.

You can download your invoices using a web browser on your computer, as the QuickBooks Self Employed (QBSE) application has limited capabilities when it comes to downloading data.

To download your invoices, please follow these steps:

1. Log in to your QuickBooks Self-Employed account using a computer.
2. Go to the Invoices section in the left menu.
3. Select the invoice that you want to download. 
4. Click the download icon located at the top right, just below the Create invoice button.

For additional guidance, you can check out this article on how to export your transactions, miles, and other data: Export data out of QuickBooks Self-Employed.

If you have any further questions or concerns, please click the Reply button.