Retirement tax questions

If social Social Security income is your only income, you shouldn't need to file. If you  wish to add it however:

1. log into or open Turbo Tax
2. Go to federal>income and expenses>all income
3. Retirement plans and Social Security>show more 
4. Social Security (SSA-1099, RRB-1099) Start
5. Here you will enter your social security benefit from the SSA-1099.

Here is a screen how it looks like.

@dimost2