Which Box 12 for HSA Contributions? - Understanding HSA Contributions

When it comes to Health Savings Accounts (HSAs), understanding where contributions are reported on your tax forms is crucial. Box 12 of your W-2 form plays a significant role in highlighting HSA contributions.

Box 12 is specifically used to report various types of compensation and benefits that you received throughout the tax year, including HSA contributions made by you and/or your employer.

For HSA contributions, you should look for specific codes within Box 12 that denote these contributions.

The most common codes for HSA contributions are:

  • Code W: Employer contributions to your HSA
  • Code DD: Your own contributions to the HSA, which are usually deducted from your paycheck on a pre-tax basis

By identifying these codes in Box 12 of your W-2 form, you can accurately report your HSA contributions on your tax return and ensure compliance with IRS regulations.


When you're preparing your taxes, understanding Health Savings Account (HSA) contributions is key. Box 12 of your W-2 form not only highlights your income but also shows HSA contributions, which can significantly impact your tax return.

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