Hi. Can I download two turbo tax deluxe 2024 packages (I bought two downloads and have two unique license /keys) on the same Mac / same account? Thank you

[xmasbaby0]

No----and why would you want to do that?   The only instance you might need that is if you need TurboTax Business and another desktop program for your personal tax returns.   But Business does not work on a Mac unless you have a Windows emulator.    

One desktop download program will allow you to prepare and e-file up to five federal returns, and if you have more than five, the others must be filed by mail--per the IRS rule.  Having a second download does not allow you to e-file more than five federal returns, if that is what you are hoping for.