Understanding Form W-2 Box 12 Codes

Charles Hardy | Last Updated: March 10, 2025

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Form W-2 Box 12 Codes: Detailed Instructions

To report employees' wage statements on Form W-2, you must be familiar with each line and box for accurate and
error-free filing. While it is relatively straightforward, one part that may often confuse filers is Box 12 of Form W-2.

This article explains the purpose of Box 12 in Form W-2 and the step-by-step instructions for completing it.