I posted my home address as my business address in error. I need to correct the business addresses on various forms. But how?

Is this a return that ha been accepted by the IRS?  If so, then you would have to amend to change the address.  It is not a big deal and does not have to be changed.

If the return has not been transmitted yet, you can determine the business then go back into it to make the changes.

Specifically, which business return are you speaking about?  Is it a Schdule C  You can go through the interview questions to make the changes.

If you want to find the section within TurboTax where you either enter or have entered your self-employment income and expenses which will be reported on Schedule C of your tax return, do the following steps:

1. After signing into TurboTax, select "Take Me to My Return"
2. Type "Schedule C" in the search field at the top right hand of the screen.
3. Select "Jump To Schedule C" and you will be brought to the section of TurboTax where you can enter or have entered your business income and expense information.