How do they know an HSA is used for a non-qualified event?

When you have a Health Savings Account (HSA), it's important to use the funds for qualified medical expenses to avoid tax penalties. But how do they know if you've used your HSA for a non-qualified event?

One way they can track this is through the use of your HSA debit card or checks. When you make a purchase using your HSA funds, the merchant category code (MCC) of the transaction is recorded. If the MCC indicates the purchase was for a non-qualified expense, it will be flagged.

In addition to tracking MCCs, the IRS and HSA administrators may audit your HSA account to ensure compliance with the rules. This means they can review your expenses and receipts to verify that the funds were used for eligible medical costs.

When utilizing a Health Savings Account (HSA), it’s crucial to ensure that you are using funds strictly for qualified medical expenses to side-step any tax penalties. But how does the IRS discover if an HSA is misused for non-qualified expenditures?