Can you file federal income tax by mail or is it only on line?

She can e-file or file by mail--her choice.   The cost of using the software is the same either way.

 

  

Enter her Social Security:

 

Go to Federal> Wages & Income>>Retirement Plans and Social Security  (SSA1099 and 1099RRB) to enter your SSA1099.

 

If she has self-employment income:

 

https://ttlc.intuit.com/questions/2926899-how-does-my-side-job-affect-my-taxes

 

https://ttlc.intuit.com/community/self-employed/help/how-do-i-report-income-from-self-employment/00/26653

 

https://ttlc.intuit.com/community/self-employed/help/what-is-the-self-employment-tax/00/25922

 

https://ttlc.intuit.com/questions/2902389-why-am-i-paying-self-employment-tax

https://ttlc.intuit.com/questions/1901340-where-do-i-enter-schedule-c

 

https://ttlc.intuit.com/questions/3398950-what-self-employed-expenses-can-i-deduct

 

https://ttlc.intuit.com/questions/1901110-do-i-need-to-make-estimated-tax-payments-to-the-irs

Yes she can mail it.  How to mail a return from the Online version

https://ttlc.intuit.com/community/printing/help/how-do-i-print-and-mail-my-return-in-turbotax-online/00/26258

 

Be sure to attach copies of your W2s and any 1099s that have withholding on them.  You have to mail federal and state in separate envelopes because they go to different places.  Get a tracking number from the post office when you mail them for proof of filing.