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QuickBooks Desktop for Mac 2019 doesn't support the macOS Tahoe 26.1. It is compatible with specific macOS versions, including High Sierra, Sierra, and El Capitan.

Please note that QuickBooks Desktop for Mac 2019 (QBDT Mac 2019) was not tested with macOS Tahoe (version 26.1). Additionally, Intuit officially discontinued this product on May 31, 2022, meaning it no longer receives support, updates, or access to add-on online services.

While QBDT Mac 2019 may still function, you could encounter compatibility issues when running it on newer macOS versions. To ensure compatibility and optimal performance, consider upgrading to a newer version of QuickBooks Desktop for Mac. Before proceeding with an upgrade, remember to back up your files to prevent any data loss.

If you have further questions, feel free to reply here. We’re happy to help.