Leave it blank unless NY. (Box 16 is the old box 14).
NOTE: prior to 2020 the state tax was in boxes 12-14, 2020 renumbered those boxes to 14-16.
If there is no dollar amount in box 14 on your 1099-R then all boxes 14-16 must be blank.
If there is a dollar amount in box 14 then:
Box 16 is not usually required because it has been an 1099-R industrial standard for many years that if there is only one state in box 14 & 15 then the box 1 amount does not need to be allocated between two states - the entire box 1 amount is understood to be the state distribution so box 16 is just left blank.
But recently, there are at least two states (one being NY) that will reject 1099-R's with a state tax and a blank box 16 so it is okay to enter the box 1 amount into box 16 to satisfy the states requirement.
**Disclaimer: This post is for discussion purposes only and is NOT tax advice. The author takes no responsibility for the accuracy of any information in this post.**
