A tax-advantaged account that lets you save money specifically for healthcare costs.
An HSA — Health Savings Account — is a special bank account that lets you save money for healthcare costs, tax-free. It's one of the most powerful financial tools most employees never fully use.
HSAs are the only account in the U.S. tax code with three layers of tax benefits:
You must be enrolled in a High-Deductible Health Plan (HDHP) to contribute to an HSA. That's the only requirement.
Limits are set annually by the IRS. The link above always points to the current year's figures.
Unlike FSAs, HSA money never expires. If you don't use it this year, it's yours next year. And the year after. Many people use HSAs as a stealth retirement account — saving now, investing the balance, and using it for healthcare in retirement when costs are highest.
Qualified medical expenses: doctor visits, prescriptions, dental, vision, surgery, mental health, and much more. The IRS publishes the full list (Publication 502).
If you spend HSA money on non-medical expenses before age 65, you'll owe income tax plus a 20% penalty. After 65, it acts like a traditional IRA — you pay income tax but no penalty.