The TurboTax desktop edition for tax year 2023 only supports -
macOS Monterey 12 or later (macOS Big Sur 11 not supported)
- Specific macOS: macOS Monterey 12, macOS Ventura 13, macOS Sonoma 14
Go to this TurboTax website for supported operating systems, Windows and Mac - https://turbotax.intuit.com/personal-taxes/cd-download/tta-system-requirements
You can request a refund of the purchase -
Use this TurboTax website to request a refund - https://accounts.intuit.com/app/oirr
Use this TurboTax website to look up a charge - https://accounts.intuit.com/app/oicl
If you chose to do so you can still use the TurboTax online editions - https://turbotax.intuit.com/personal-taxes/online/file-your-own-taxes/
