Where do I report in TurboTax the Traditional IRA distribution taken after age 59 1/2? There is no tax form from the custodian, but I know the amount.
If you took the distribution in 2018, you should have received a 1099-R from your IRA custodian. Contact them if you didn't, or look for it on their website.
If you took the distribution in 2019, you won't receive the 1099-R until next January, and you'll report it on your 2019 return.
A 1099-R is entered in the Retirement Plans and Social Security section of Personal Income.