I appreciate you getting back to us and clarifying the concerns you have, sbfulkrod.

The answer to your questions is Yes. You're correct that the support for QuickBooks Premier Nonprofit 2021 will end in May 2024. QuickBooks program has a 3-year life cycle.

As advised, your access to payroll, online banking, and other services will be discontinued. Still, I'd like to share this article for more details about service discontinuation in this article: QuickBooks Desktop service discontinuation policy.

Also, TechSoup will no longer offer the desktop version of QuickBooks. I understand and see your point on how it helps you and other users in an alternative way. 

In case you need to learn some tips for managing your QBDT, you can always check our help articles page: QuickBooks Desktop Help Articles.

Visit again if you have other concerns. I'm here to help in any way that I can. Bye for now, and stay safe.