should I switch to Quickbooks Online from Self Employed which wont let me use the App any longer, before I do my latest tax return or after?

You can go either way with the timing. If you prefer to complete your taxes before switching, you can still access your account through your mobile browser to view and download your reports.

The QuickBooks Self-Employed mobile app can only be used or redownloaded on the same operating system or device, and first-time downloads are no longer available.

If you switch, choosing either QuickBooks Online or Sole Trader Plus as soon as possible ensures full compliance with 2026 MTD tax laws while safely transferring your existing data. Both platforms offer built-in tools to calculate your tax and simplify filing, all manageable on the go via the mobile app.

Feel free to click the Reply button if you have any questions about switching subscriptions.