W-2 Box 12 code W
General Instructions for Forms W-2 and W-3
Box 12 - Codes
Code C – Taxable cost of group-term life insurance over 50,000 (included in boxes 1, 3 (up to social security wage base), and 5. In UAOnline, this is listed in your deductions as “Taxable Life Insurance”
Code E – Elective deferrals under a section 403(b) salary reduction agreement. In UAOnline, this is listed in your deductions as “TDA …”
Code G – Elective deferrals under a section 457(b) salary reduction agreement. In UAOnline, this is listed in your deductions as “EX 457b Retirement Plan”
Code W - Employer contributions to a health savings account (HSA). Show any employer contributions (including amounts the employee elected to contribute using a section 125 (cafeteria) plan) to an HSA. In UAOnline, this is listed in your deductions as “HSA …”
Code DD – Cost of employer-sponsored health coverage. – Includes both the employer and employee amounts. These amounts are not taxable and are for informational purposes only. In UAOnline, these are listed as Health, Dental and/or Vision.
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