I purchased TurboTax CD for desktop and found I could not update my MAC to OS12. Will TurboTax reduce my price for TurboTax online due to already purchasing it on CD.

[DoninGA]

No, the payment of the TurboTax desktop edition cannot be applied to the TurboTax online edition.

You should get a refund for the purchase of the TurboTax software from the seller.

If you purchased the software from TurboTax -

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