Does TT Business include all features of Home & Business, Premiere?

No.  Turbo Tax Business  is a separate program from Home & Business.  So you need 2 programs.

Turbo Tax Business and Turbo Tax Home & Business are not the same.  Home & Business is for personal 1040 returns that need Schedule C for self employment income.  You can use either the Desktop program or the Online version for your personal return.

Turbo Tax Business is a separate program from Home & Business.  TT Business is for 1120 Corporation, 1120S Corp, 1065 Partnership or 1041 Estate/Trust returns. Not for self employed independent contractors.  Turbo Tax Business  is not available to do online or on a Mac.  You can buy the Window's version here.  And you can have both TT Business and TT Home & Business (or any personal version) installed on  your computer at the same time.

You need Turbo Tax Business.  It  is a separate program from Home & Business.  It is not available to do online or on a Mac.

You can buy the Window's version here…..

https://turbotax.intuit.com/small-business-taxes

Here are the system requirements to install Turbo Tax for Windows…..

https://ttlc.intuit.com/community/system-requirements/help/minimum-system-requirements-for-turbotax-windows-software/00/26175

Does TT Business include all features of Home & Business, Premiere?  no

Business will do the trust.

Home & Business, Premier do 1040s.