How to Determine if HSA Contributions are Pre-Tax on a W2 Form

Understanding your W2 form can be crucial in deciphering whether your HSA contributions are pre-tax or not. When looking at your W2 form, there are certain indicators that can help you determine if your HSA contributions were made on a pre-tax basis.

Firstly, locate box 12 on your W2 form. If you see any amounts reported with codes W, DD, or AA, these are indicative of pre-tax HSA contributions.

Additionally, if your employer offers a section 125 cafeteria plan, which allows for pre-tax contributions to various benefits including HSAs, it is likely that your HSA contributions are pre-tax.

Furthermore, if you made contributions to your HSA directly from your paycheck before taxes were deducted, then those contributions are considered pre-tax.

It's important to consult with a tax professional if you are unsure about the tax treatment of your HSA contributions.


Are you puzzled by your W2 form's details? Figuring out if your HSA contributions are pre-tax can significantly impact your tax savings. To start, focus on box 12 which could have codes like W, DD, or AA. These codes specifically indicate that your HSA contributions were made with pre-tax dollars.

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