Box   12 Code

Description

A

Uncollected Social Security or RRTA tax on tips

B

Uncollected Medicare tax on tips

C

Taxable cost of group-term life insurance over $50,000

D

Elective deferrals to a section 401(k) cash or deferred   arrangement.  Also includes deferrals   under a SIMPLE retirement account that is part of a section 401(k)   arrangement

E

Elective deferrals under section 403(b) salary reduction agreement   with your employer

F

Elective deferrals under a section 408(k)(6) salary reduction SEP

G

Elective deferrals and employer contributions (including non-elective deferrals) to a section 457(b) deferred   compensation plan

H

Elective deferrals to a section 501c(18)(D) tax-exempt organization   plan

J

Nontaxable sick pay (information   only, not included in boxes 1, 3, or 5)

K

Twenty percent (20%) excise tax on excess  golden parachute payments

L

Substantiated employee business expense reimbursements (nontaxable)

M

Uncollected social security or RRTA tax on taxable cost of group-term   life insurance over $50,000 (former   employees only)

N

Uncollected Medicare tax on taxable cost of group-term life insurance   over $50,000 (former employees only)

P

Excludable moving expense reimbursements paid directly to employee (not included in boxes 1, 3, or 5)

Q

Nontaxable combat pay

R

Employer contributions to your Archer MSA.

S

Employee salary reduction contributions under a section 408(p) SIMPLE   plan (not included in box 1)

T

Adoption benefits (not included   in box 1)

V

Income from exercise of non-statutory stock option(s) (included in boxes 1, 3 (up to social   security wage base), and 5)

W

Employer contributions (including   amounts the employee elected to contribute using a section 125 (cafeteria)   plan) to your health savings account

Y

Deferrals under a section 409A nonqualified deferred compensation   plan

Z

Income under section 409A on a nonqualified deferred compensation   plan. This amount is also included in box 1.    It is subject to an additional 20% tax plus interest.

AA

Designated Roth contributions under section 401(k) plan

BB

Designated Roth contributions under section 403(b) plan

DD

Cost of employer-sponsored health coverage (this is not taxable when Code DD)

EE

Designated Roth contributions under a governmental section 457(b)   plan. This amount does not apply to contributions under a tax-exempt   organization section 457(b) plan.