A 1099R is a document that shows money you took out of a retirement account. If you received a 1099R you need to enter it on your tax return.
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.
https://ttlc.intuit.com/community/entering-importing/help/where-do-i-enter-my-1099-r/00/26339
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