Hello TheBookkeeper2!

Thanks for joining this post. I'm here to assist you with your QuickBooks Desktop Pro 2016.

The QuickBooks Desktop Pro 2016 is one of our unsupported versions of QuickBooks Desktop. This means that you will no longer receive updates and some other services will be discontinued, too. However, you can still access your data and use the software.

Please check this article: QuickBooks Desktop service discontinuation policy and upgrade information. This will explain more what happens to the discontinued versions of QuickBooks Desktop.

Also, if you're planning to move to a cloud version of QuickBooks, the details are in this article: QuickBooks Desktop discontinuation support hub.

Comment again here if you have other concerns. I'll help you!