A 1099R must be entered. If you filed without out entering it, you are going to have to amend your tax return after it has been fully processed. You will not be able to do that until late February. A 1099R is sent to you if you took money out of a retirement account or if you rolled it over to a new account. A copy of it is sent to the IRS and the IRS will want to know why it was not entered if you do not take care of entering it. Do not make any changes to your tax return now. Wait until it has been fully processed.
To enter your retirement income, Go to Federal> Wages and Income>Retirement Plans and Social Security>IRA 401 k) Pension Plan Withdrawals to enter your 1099R.
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**