What do i type for box d: control number

[ochoa1108]

i have a question on regards to box 12. how do i know which to pick

[LeeM · Accepted solution]

For Box 12, you should leave that blank if that is how it appears on your W-2.

Where it asks for the control number in Box D, you can leave that blank as well. Even if there is a number in the control number box, it is not necessary as it is not used by the IRS.