If you have the CD/download software then you can allow your grandchildren to use your computer and your TT software to file their returns if you want to. With the CD/download you get up to five federal e-files. If you have the state software for one specific state they can also prepare and e-file up to five state returns---but there is a $25 state e-file fee for each state return that is e-filed from your computer. You can have them print, sign and mail their state returns to avoid the e-file fee.
If you are using online TurboTax ----the answer is different for letting your grandkids use your account. When you use online TurboTax you pay for each return.
Each return needs its own account and user ID. If you use the same account and user ID for a second return, you overwrite the first one and lose it forever.
https://ttlc.intuit.com/community/using-turbotax/help/how-do-i-start-another-return-in-turbotax-onli...
If your grandkids have very simple returns they may be able to use Free Edition---but if they have anything at all that requires the use of the extra schedules 1, 2, or 3 that are part of a Form 1040 they will need to use a paid version of the software.
Or-----they might be able to use Free File:
Try Free File:
You qualify if your income was $39,000 or less, or $72,000 or less if active duty military, or if you qualify for Earned Income Credit
https://ttlc.intuit.com/questions/1900583-what-is-turbotax-free-file-program
Note: If you do not qualify to use Free File then you will have to upgrade to Deluxe or higher in the paid versions of the software.
Online Deluxe $40 State software $40
Or—-Use this IRS site for other ways to file for free
https://apps.irs.gov/app/freeFile/
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**
