If your business is a multi-member LLC, meaning there is more than one owner of the LLC business, then you are required to file a 1065 Partnership Return. Each partner will be issued a K-1 which each partner will need in order to complete their own individual personal 1040 tax returns. So the personal 1040 return can't even be started until the 1065 Partnership Return is completed, filed and all K-1's are issued to each owner/partner.
For the 1065 Partnership Return you must use TurboTax Business (not Home & Business). TurboTax Business is not available as an on-line product and is not available for MACs. TurboTax Business is for the Windows operating system only.
If this is for 2017, you can purchase TurboTax Business at https://turbotax.intuit.com/personal-taxes/past-years-products/
If this is for an upcoming 2018 return, you can order it at https://turbotax.intuit.com/small-business-taxes/
