I am currently creating my main LLC that will be controlling my 3 other companies which I intend to file them just as DBA's in TEXAS.

I plan to sell retail merchandise from two of the DBA's and the third DBA just to do service related stuff. My LLC I plan just to use for tax and protection pursues for me.

1) Will I need to file for 4 different seperate Tax ID's or just one for my main LLC.
2) Will I need to file for sales license/permit for my two DBA's or just file one for my main LLC?
3) Bank accounts, should I open four different bank accounts or just for my main LLC?
4) Main Box I plan to use a UPS Mail Box, can I use one box for all 4 companies (1 LLC, 3 DBA's) or do I have to open up four different addresses?

Overall Goal, I want a centralized LLC to control my many DBA's that will simplify tax purposes if I can and protect myself. My companies at this point have low risk....


I am new to this forum, but from what I read, I plan to read this everyday! Thanks for your time everyone!


*I put this topic in the wrong topic subject so I am placing it here instead, my apologizes if this should cause any issues.*