For 2024 current year.....
You can buy the stand alone do it yourself Business Download program for Windows here (it is not available to do online or for Mac).
https://turbotax.intuit.com/small-business-taxes/cd-download
There is also a Business service, LIVE Assisted or LIVE Full Service Business which is separate from the Desktop installed Business program. It is not for 1041 Trust/Estate returns. You can see them here,
https://turbotax.intuit.com/small-business-taxes
For 2023 & prior
You can buy both the prior personal programs and the Business program here,
https://turbotax.intuit.com/personal-taxes/past-years-products
You will need a full Windows or Mac computer to install the personal programs But Business is only available for Windows.
