Thank you for sharing your concern here in the Community, Pat Haywood.
I'll be sharing insights on the message you receive where you cannot log in after May 24 in QuickBooks Desktop.
Our top priority is to help you stay compliant. Due to recent changes in accounting and tax regulations, and with more changes expected in the future, QuickBooks decided to stop providing all QuickBooks Desktop services for our UK customers on June 30, 2023. This change will affect all versions of QuickBooks Desktop Pro, Premier, and Enterprise.
This means that after May 2024, you can still access your company files in your standalone QuickBooks Desktop version for recording purposes. However, some ex-subscribed users are still able to use the software. From May onward, access will no longer be possible on subscribed versions of QBDT 2016 and above. We strongly encourage all users to migrate to another software solution before this date.
If you are considering migrating to QuickBooks Online and would like to discuss your options, you can check this link.
Moreover, here's an article you can use as a reference to gain more insights on the main features of QuickBooks Online and other how-to articles: Get started with QuickBooks Online.
The Community is always available 24/7. Fill me in if you have other questions or need clarifications with managing your QuickBooks Desktop. Stay safe!