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.

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