What Box is HSA on W2? - Understanding the Health Savings Account Reporting

When tax season arrives, many individuals with Health Savings Accounts (HSAs) wonder where to find the information on their W-2 forms relating to their HSA contributions. The important details are typically located in Box 12 with the code W, which represents employer contributions to your HSA.

Understanding how HSA contributions are reported on your W-2 form is essential for tax purposes. Here's a breakdown of what you need to know:

  • Box 12: Look for the code W
  • The amount in this box represents the total contributions made by your employer to your HSA for the year.
  • These contributions are pre-tax, meaning they are not included in your taxable income.
  • It's important to verify that the amount in Box 12 matches the contributions made to your HSA throughout the year.

HSAs offer a tax-advantaged way to save for medical expenses. By understanding how they are reported on your W-2 form, you can ensure accurate tax filing and maximize the benefits of your HSA.


During tax season, individuals often seek clarity on their Health Savings Accounts (HSAs) and wonder about their contributions as reflected on their W-2 forms. The key information you need is generally found in Box 12, marked with code W, denoting your employer's contributions to your HSA.

To help you navigate tax season with confidence, here's what you should keep in mind:

  • Box 12: Always look for the code W
  • The figure shown here is the total amount contributed by your employer to your HSA over the past year.
  • These contributions are exempt from federal income tax, so they lower your taxable income.
  • Always double-check that the number in Box 12 accurately reflects your HSA contributions reported throughout the year.

Understanding the reporting of HSA contributions on your W-2 is crucial for accurate tax filing, enabling you to make the most of your tax-advantaged savings for medical costs.

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