Line 4b of the Form 1040 is based on the what you entered on the Form 1099-R box 2a and checked the box for IRA/SEP/SIMPLE.
Go back and review the Form 1099-R you entered.
To enter, edit or delete a form 1099-R -
Click on Federal Taxes (Personal using Home and Business)
Click on Wages and Income (Personal Income using Home and Business)
Click on I'll choose what I work on (if shown)
Scroll down to Retirement Plans and Social Security
On IRA, 401(k), Pension Plan Withdrawals (1099-R), click the start or update button
