This third and final installment of my “Understanding Your W-2” series will look at Boxes 14-20 of Form W-2.
Box 14 (Other): This box could report any number of items. For same-sex couples in Iowa, this box will report the amount of income reported in Box 1 for including a same-sex partner on health insurance. This box can also report the amount of contributions made to IPERS, amounts paid for union dues, or the amount of employer-provided tuition existence.
Boxes 15-17: These boxes report information to the state. Box 15 shows the state, and the state identification number of your employer; Box 16 shows the amount of taxable state wages earned; and Box 17 shows the amount of state income tax withheld during the year.
Boxes 18-20: If your city or county imposes an income tax, that information will be reported here. These boxes are not applicable to Iowans.