QBDT 2013 (UK) to QBO

You can manually export your QuickBooks company files and import them to the online version, DM112.

Since all QuickBooks Desktop UK versions have already been discontinued, you can access and export your data to move your files to the new online program and consider utilizing third-party conversion services to update and import them.

Once ready, you can transfer your company data to the QuickBooks Online version. I'll also include this reference to help you access your previous desktop reports and download them as a CSV file: Access and view your QuickBooks Desktop reports online.

Additionally, you may notice differences in how your books appear when you switch to QBO. But no worries, here's an article to help you understand how your data is moved: Find out how your books will move from QuickBooks Desktop to QuickBooks Online.

Please reply to this thread anytime you need further assistance.