Yes, you can, @dig139. Let me elaborate on this further to know what operating systems are compatible with QuickBooks Desktop (QBDT) for Mac 2019.

Since QBDT 2019 has been discontinued, it no longer receives critical security patches and updates. Although it functions in the latest release of macOS, Sequoia, we cannot guarantee that the application will run smoothly on your updated device.

Moreover, QuickBooks Desktop for Mac 2019 runs an optimal performance with the following operating systems:

• macOS Mojave (10.14)
• macOS High Sierra (10.13)
• macOS Sierra (10.12)

If you have any other concerns regarding the supportability of QuickBooks Desktop versions, please feel free to ask. If you need assistance with your transactions and lists, provide the details below, and I'll be happy to help.