You will receive a 1099R that shows the distribution from your retirement account. They issue them in late January to mid-February, and the 1099R will show any distributions you received in the tax year. You cannot change the year or use it for a different tax year.
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.