Do I have to pay taxes again on my pension I received in June in a lump sump sum. The Company took 20% in taxes then?

[xmasbaby0]

You must enter the 1099R for the pension money you received.  The amount withheld by the employer was an estimate, just like when they withhold tax from your paychecks.   Whether you owe anything additional or get a refund of any of it will depend on your other income, tax withheld, etc.

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.

[SweetieJean]

Maybe, if the taxes you actually owe are more than 20%.  Remember state taxes as well.

Enter the 1099-R in Federal > Wages and Income > Retirement.