What is HSA?

An HSA is a tax-advantaged account for medical expenses. You contribute pre-tax dollars, the money grows tax-free, and withdrawals are tax-free for qualified health costs. Established under Section 223 of the Internal Revenue Code, HSAs offer a unique 'triple tax advantage': contributions are 100% tax-deductible (or pre-tax if made via payroll), account growth and investment earnings compound tax-free, and withdrawals are tax-free when used for qualified medical expenses.

Contribution limits are adjusted annually by the IRS. For the 2026 tax year, the contribution limit is $4,400 for self-only coverage and $8,750 for family coverage (up from $4,300 and $8,550 in 2025 respectively). Individuals aged 55 and older can make an additional catch-up contribution of $1,000. Unlike FSAs, HSA balances do not expire; unused funds roll over indefinitely and can be invested in mutual funds or ETFs.

HSAs also serve as a stealth retirement tool. Once the account owner reaches age 65, they can withdraw HSA funds for non-medical expenses without penalty, paying only ordinary income tax (similar to a traditional IRA), while qualified medical withdrawals remain 100% tax-free.

To contribute to an HSA, you must be enrolled in a qualifying High-Deductible Health Plan (HDHP) and have no other disqualifying health coverage. For the 2026 tax year, a qualifying HDHP must have a minimum annual deductible of at least $1,700 for self-only coverage and $3,400 for family coverage, with annual out-of-pocket expenses capped at $8,500 and $17,000, respectively. Contributions made through an employer's Section 125 cafeteria plan (payroll deduction) are particularly advantageous because they bypass FICA payroll taxes (6.2% Social Security and 1.45% Medicare), whereas direct contributions only deduct against income tax. Unqualified withdrawals made before age 65 are subject to a steep 20% penalty in addition to ordinary income tax. Under recent 2026 federal tax updates (Rev. Proc. 2025-19 and Notice 2026-05), eligibility has been expanded to cover bronze and catastrophic plans from health exchanges and certain direct primary care (DPC) service arrangements, further broadening HSA access.