I am a retired tax preparer. I would like to prepare 20 returns for my family members. Which Turbo tax product do you recommend? Online or Cd? 1120S as well

[DoninGA]

You will need to use the TurboTax desktop CD/Download editions when you are preparing multiple tax returns - https://turbotax.intuit.com/personal-taxes/cd-download/

For preparing a Form 1120S for a S Corporation you will have to use the TurboTax Business Edition - https://turbotax.intuit.com/small-business-taxes/

The Business edition can only be installed on a Windows based personal computer, not on a Mac or online.  The Business edition cannot be used to complete a personal tax return, Form 1040.

[Hal_Al]

Although you may prepare an unlimited number of returns on the download versions of TT, you are limited to 5 e-files.  So, the other15 family members would have to mail in their returns.

Consider using TT free online  or free file* for those family members who qualify.  You'll have to establish a separate account for each taxpayer.

*TurboTax also has another free product called the Free File Edition (not to be confused with the regular Free Edition).  It has free Federal preparation and free State preparation. There is no efiling fee. It is not available after October 15

The Free file Edition can handle a 1099-MISC.

The Free file Edition is more fully-featured than the regular Free Edition.  The Free File Edition can prepare Schedule A, C, D, E, and F that the Free Edition cannot. 

For Free File Edition a user needs to meet only ONE of these qualifications:

•      AGI of $36,000 or less
•      or active duty military (including Reservists and National Guard) with a military-issued W-2 and a 2019 AGI of $69,000 or less
•      or eligible for the Earned Income Credit (EIC aka EITC).

The FREE FILE Edition is located at:
https://turbotax.intuit.com/taxfreedom