A)How should I file my 18 years son taxes of 3 K income b) Conversation from of IRA (After Tax) to Roth IRA c) Where to enter Sch E (Time Share) income's expenses Thanks

Yes, he must file, if his income is over the amounts below.

 

Single dependents— 

You must file a return if any of the following apply.

1. Your unearned income was more than $1,100. 

2. Your earned income was more than $12,550. 

3. Your gross income was more than the larger of— a. $1,100, or b. Your earned income (up to $12,200) plus $350. 

 

To get to the rental section:

• Continue your return in TurboTax Online. (If your return isn't open, you'll need to sign in and click Take me to my return.)
• Click My Account (top right of your screen).
• Select Tools.
• In the pop-up window, select Topic Search.
• In the search bar, type rental.
• Scroll down in the results box, highlight rental (schedule e), then click GO.
• You'll land on Income from Rentals or Royalty Property You Own. Click Yes.