Retirement tax questions

If it's asking for an EIN number you are entering it in the wrong place. There is no EIN on social security SSA-1099.

If you only get ssi or SS or SSDI it is not taxable and you do not have to file a return. 

Try going to the search box and type in SSA-1099 or Social Security Benefits.  That will give you a Jump To link to take you directly to it.

OR

Enter a SSA-1099, SSA-1099-SM or RRB-1099  under

Federal Taxes on the left side or top

Wages and Income

Then scroll down to Retirement Plans and Social Security

Then the second line - Social Security (SSA-1099. RRB-1099) - click the Start or Revisit  button