Are HSA Interest Taxable in California? Understanding HSA Tax Rules

When it comes to Health Savings Accounts (HSAs), many people wonder whether the interest earned on their HSA funds is taxable in California. The good news is that HSA interest is tax-free at the federal level when used for qualified medical expenses. However, California does not conform to this federal tax treatment, meaning that HSA interest is taxable at the state level.

Here's how HSA interest is treated for tax purposes in California:

  • Interest earned on HSA funds is subject to California state income tax.
  • This means that any interest accrued on your HSA balance will be included as part of your taxable income in California.
  • It's important to keep track of the interest earned on your HSA throughout the year for accurate tax reporting.

Understanding the tax implications of HSA interest in California can help you plan effectively and avoid any surprises come tax season. Be sure to consult with a tax advisor or accountant for personalized guidance based on your specific financial situation.


When it comes to Health Savings Accounts (HSAs), many individuals often find themselves asking whether the interest earned on their contributions is taxable in California. The simple answer is yes; while HSA interest is tax-free at the federal level, California imposes taxes on it.

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