How Do HSA Employee Contributions Affect W2?

Health Savings Accounts (HSAs) have become a popular way for individuals to save money for medical expenses while enjoying tax benefits. One common question that arises is how HSA employee contributions impact the W2 form. Understanding this relationship is essential for employees who contribute to an HSA. Let's delve into how HSA contributions affect your W2:

When you contribute to an HSA through payroll deductions, your contributions are made on a pre-tax basis. This means that the amount you contribute is deducted from your gross income before taxes are calculated. As a result, your taxable income is reduced, leading to potential tax savings.

Here's how HSA employee contributions can affect your W2:

  • Employee contributions made to an HSA are not included in Box 1 (Wages, Tips, Other Compensation) of your W2 form.
  • Your HSA contributions will be listed in Box 12 of your W2 form with a specific code (Code W) to indicate HSA contributions.
  • Since HSA contributions are not subject to federal income tax, they are also not subject to Social Security or Medicare taxes.

In summary, HSA employee contributions can have a positive impact on your W2 by reducing your taxable income and potentially lowering your tax liability. It's important to keep track of your HSA contributions and ensure they are accurately reflected on your W2 form each year.


Health Savings Accounts (HSAs) offer a fantastic opportunity for individuals to save money for healthcare expenses while enjoying significant tax advantages. One of the common concerns for employees is how these contributions appear on your W2 form. Let's break down the relationship between HSA contributions and your W2 for better clarity.

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