And if the check was made out to your IRA instead of to you, reported with code G in box 7 of the Form 1099-R, there was no 60-day deadline for completing the deposit.
Since the distribution was made in 2018 and reported on a 2018 Form 1099-R, the distribution is reported entirely on your 2018 tax return. This transaction should not appear on your 2019 tax return.
