Get your taxes done using TurboTax

@dnate87 If you have claimed your child as a dependent on a previous tax return then his SSN will be on the Form 1040 for that return.   

 

https://ttlc.intuit.com/community/prior-year-return/help/how-do-i-access-my-prior-year-return/01/270...

 

Many people have multiple TT accounts and forget how to access them.  Log out of the account you are in now.

 

Account recovery

https://myturbotax.intuit.com/account-recovery/

https://ttlc.intuit.com/questions/1901535-forgot-your-turbotax-online-user-id-or-password

 

 

 

If you cannot find it on a tax return, you will have to get it from Social Security.

 

To Replace a Child’s Social Security card

https://faq.ssa.gov/en-US/Topic/article/KA-02723

**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.**