If you’re enrolled in an FEHB High Deductible Health Plan, you have access to a Health Savings Account. Most people treat it like a medical expense fund, money in, copays out. That’s leaving significant value on the table.
How the Money Gets There
Enrolling in an HDHP triggers an automatic monthly contribution to your HSA from your plan, called a premium pass-through. Depending on your specific plan, that adds up to roughly $750–$1,200 per year for self-only coverage and $1,500–$2,400 for self-plus-one or family plans.
On top of that, you can contribute your own money up to the IRS annual limit. For 2025, that’s $4,300 for self-only and $8,550 for family coverage. If you’re 55 or older, you can add an extra $1,000 per year in catch-up contributions.
The Triple Tax Advantage
HSA contributions come with a tax benefit that no other account can match. Your contributions go in pre-tax, the balance grows tax-free, and withdrawals for qualified medical expenses are never taxed. That’s three layers of tax protection in a single account — more than a 401(k), more than an IRA.
The Part Most People Miss: Investing Your Balance
Your HSA isn’t a savings account; it’s an investment account. The unused balance can be invested in mutual funds, index funds, and other options through your HSA provider, often with a broader selection than what’s available in the TSP. Money you don’t need for near-term medical expenses can be invested and left to grow, tax-free, for years or decades.
For federal employees who are in relatively good health, this creates a genuine opportunity to build a tax-free healthcare reserve — money specifically available for the years when medical costs are highest and income is fixed.
What You Can Use It For
HSA funds cover far more than major medical bills. Over-the-counter medications, allergy treatments, feminine hygiene products, and hundreds of other everyday health items all qualify. In retirement, your HSA can also pay Medicare Part B and Part D premiums and long-term care insurance premiums — expenses that add up fast on a fixed income.
What Changes at 65
Before 65, using HSA funds for non-medical expenses triggers a 20% penalty plus ordinary income tax. After 65, the penalty goes away entirely. Non-medical withdrawals are simply taxed as ordinary income — making the HSA function like a traditional IRA for general expenses, while medical withdrawals remain completely tax-free at any age.
One more thing worth knowing: your HSA belongs to you. It goes with you if you change health plans, change agencies, or leave federal service entirely.
A Federal Retirement Consultant (FRC®) can help you build an HSA strategy that goes beyond covering copays, including how to invest your balance for long-term, tax-free growth.
