The secret weapon most teachers miss (and how the triple tax advantage works)
I'll be honest — for most of my career, I had no idea the HSA even existed. That changed when I started listening to the ChooseFI podcast — specifically episodes 161 and 257. A personal finance educator named Jackie Cummings Koski broke down the HSA in a way that made my jaw drop. She also did an incredible episode on the Journey To Launch podcast (episode 40). I was so fired up that I actually emailed her with questions — and she got right back to me.
From there, I went down the rabbit hole. More podcasts. More research. And the more I learned, the more I couldn't believe what I'd been missing.
A Health Savings Account (HSA) is a tax-advantaged savings account designed for people with high-deductible health plans (HDHPs). Think of it as a retirement account specifically for healthcare costs—but with even better tax benefits than a 403(b) or IRA.
What qualifies as a medical expense? HSAs can be used for a wide range of healthcare costs including doctor visits, prescriptions, dental care, vision care, medical equipment, and more. For a complete list, see IRS Publication 502.
Not everyone can contribute to an HSA. You need all five of these to be in place:
Not sure if you qualify? Your HR department can confirm in about 2 minutes. Just ask: "Is my health plan HSA-eligible?"
If you DON'T currently have an HDHP, you cannot open or contribute to an HSA. But you can switch during open enrollment if your district offers an HDHP option.
The Most Powerful Account Nobody Told You About
Health Savings AccountHere's where it gets even better: If your district allows you to contribute to your HSA through payroll deduction, you get a 4th tax advantage that most people miss.
The 4th advantage: Skip payroll taxes!
When you contribute through payroll deduction (before your paycheck is calculated), you avoid paying:
That's an extra 7.65% savings on every dollar you contribute!
Example: If you contribute $4,400 (individual coverage) through payroll deduction, you save an additional $337 in payroll taxes (7.65% × $4,400). For family coverage maxing the $8,750 limit, that's approximately $669 in payroll tax savings. That's free money stacking up on top of your income tax savings!
What if my district doesn't offer payroll deduction? No problem — you can still open an HSA on your own and get the triple tax advantage. You'll just miss the payroll tax savings. We'll cover exactly how to do this later in this module.
If you teach in California or New Jersey, your state does not recognize HSAs. That means the triple tax advantage above only applies at the federal level — your state treats the HSA differently:
This catches many teachers off guard at tax time. Many educators in these states have had to file amended returns when they or their tax preparer didn't account for HSA earnings. Make sure your CPA or tax preparer knows you have an HSA — it affects your state return every single year.
The good news: The federal tax benefits are still significant, and the HSA remains one of the most powerful retirement healthcare tools available. California and New Jersey teachers still benefit — just not as dramatically as teachers in other states. An HSA is still worth having. Just go in with eyes open.
| Coverage Type | 2026 Limit | Age 55+ Catch-Up | Total if 55+ |
|---|---|---|---|
| Individual | $4,400 | +$1,000 | $5,400 |
| Family | $8,750 | +$1,000 | $9,750 |
← Scroll to see full table →
Here's what most people miss: You don't have to spend HSA money immediately.
According to the 2024 Devenir HSA Research Report, only about 9% of HSA accounts have any money invested. The other 91% are sitting in cash, earning almost nothing — missing out on years of tax-free growth. And here's what that costs: invested HSA accounts average $22,032 in total balance — nearly 9 times larger than non-invested accounts. Same account type. Same tax advantages. The only difference is whether the money is working or sitting still.
Many HSA providers (such as Fidelity, Lively, and HSA Bank — mentioned as educational examples, not endorsements) allow you to invest your HSA balance in stocks, bonds, and index funds—just like a 403(b). This is the superpower of the HSA.
Here's how it works:
You can also choose NOT to invest: If you prefer, you can keep your HSA balance in cash (earning a small amount of interest) and use it for immediate medical expenses. But this means missing out on decades of tax-free growth—the real power of the HSA.
The high-level idea: Some educators pay current medical bills out-of-pocket when they can afford it, letting their HSA balance grow invested for decades. Then in retirement (when healthcare costs climb), they have a tax-free pool of money to help cover Medicare premiums, prescriptions, long-term care, etc.
Hypothetical illustration assuming a 7% average annual return for invested balance, compounded monthly. Cash balance assumes no interest. Not a guarantee of future performance.
This is the strategy that turned my HSA into something more than just a healthcare account.
Now that you know you can invest your HSA, here's how I took it to the next level. Instead of using my HSA debit card to pay medical bills, I paid out of pocket whenever I could and let the HSA stay invested.
Most people think of an HSA as a "medical account." But the receipt tracking strategy turns it into something completely different: a flexible, tax-free withdrawal account where old medical receipts unlock the cash for whatever you actually need.
Think about what you're really doing. Every time you pay a medical bill out of pocket and save the receipt, you're not just paying a bill. You're creating a future tax-free withdrawal slip that you can cash in whenever you want — for anything. A kitchen remodel. Your kid's college. A trip you've been putting off. A car repair. Whatever life throws at you.
The IRS doesn't restrict when you reimburse yourself or what you spend the money on after that. As long as the original expense was qualified and you have proof, the withdrawal is yours, tax-free.
A quick note about High-Deductible Health Plans (HDHPs): You're responsible for costs up to your deductible before insurance kicks in — doctor visits, prescriptions, lab work — those bills are coming no matter what. But you have a choice in how you pay them. You can use your HSA debit card and pay directly from your HSA, or you can pay out of pocket from your checking account and let your HSA keep growing. Both are perfectly valid.
I chose to pay out of pocket as much as I could, especially while I was building up my HSA balance.
The card can only pull from your cash balance — not directly from your investments. If you have everything invested, your debit card will decline because there's nothing sitting in cash. You'd need to log into your account, sell enough of your investment to cover the bill, wait for it to settle (usually 1-2 business days), and then use the card. It's not complicated, but it's not instant either. That's one more reason paying out of pocket is a smoother approach for many educators — your money stays invested and you reimburse yourself on your own timeline.
The receipt tracking strategy is one approach many educators use. But your HSA is flexible. Use it when you need to, let it grow when you can. There's no wrong answer as long as you're using it for qualified medical expenses — the IRS has a full list in IRS Publication 502, and it covers more than you'd think (doctor visits, prescriptions, dental, vision, medical equipment, and more).
Imagine a teacher pays about $35,000 in medical expenses out-of-pocket over 15 years (doctor visits, prescriptions, dental work, vision care). They track every receipt in a simple Excel spreadsheet. Meanwhile, their HSA balance grows substantially while staying fully invested.
When they need cash in their 50s, they reimburse themselves for those old medical expenses — $35,000 withdrawn completely tax-free and penalty-free, while a meaningful balance still remains.
This is a hypothetical illustration for educational purposes only. Actual results depend on contributions, investment returns, and individual circumstances. HSA investments are subject to market risk.
This is exactly what happened to me. My district offered the HDHP, but they didn't provide an HSA. So I went and opened one on my own with Fidelity. It took about 15 minutes online.
Here's the key point: as long as you have a qualifying HDHP, you can open an HSA yourself at any major brokerage firm — completely independent of your school district.
Step 1: Confirm you have an HDHP (check your health plan documents or ask HR)
Step 2: Choose a brokerage firm that offers HSAs. Popular options include:
Step 3: Open your HSA account online (takes about 10-15 minutes)
Step 4: Fund your HSA by:
Step 5: Deduct your contributions on your tax return (Form 8889)
The catch: If your district doesn't offer payroll deduction, you'll contribute with after-tax dollars and claim the deduction when you file taxes. You still get the tax benefit—it just happens at tax time instead of immediately. And you'll miss the payroll tax savings (Social Security/Medicare taxes), but you still get the triple tax advantage.
Bottom line: Even if your district doesn't offer HSA payroll deductions, you can open an HSA yourself if you have an HDHP — and many educators in this situation do. The tax benefits are worth exploring.
According to Fidelity's 2025 Retiree Health Care Cost Estimate, a 65-year-old retiring in 2025 can expect to spend an average of $172,500 in health care and medical expenses throughout retirement. For a couple, that number is approximately $345,000. Individual costs vary significantly depending on health status, location, and longevity. These estimates do not include long-term care.
And that's WITH Medicare!
Medicare doesn't cover everything:
An HSA helps you cover these costs TAX-FREE. That's a significant advantage over pulling money from a tax-deferred 403(b), where every withdrawal is taxed as ordinary income.
Many teachers retire at 55-60. If you retire before Medicare kicks in at 65, you'll need to pay for health insurance yourself. This can cost $10,000-$20,000+ per year before any ACA subsidies, depending on your location, age, and plan type.
Your HSA can bridge this gap. You can use HSA funds to pay for:
Important: At any age, HSA funds cannot be used to pay regular health insurance premiums — only the qualified exceptions listed above apply. This is a common misconception.
Here's a bonus: At age 65 or older, you can withdraw HSA funds for ANY reason—not just medical expenses.
If you withdraw for non-medical expenses, you'll pay ordinary income tax (just like a traditional IRA), but there's no 10% penalty. This makes the HSA function like a traditional IRA with bonus tax-free medical withdrawals.
Once you enroll in any part of Medicare — Part A, Part B, Advantage, or Part D — you can no longer contribute to your HSA. Your existing balance is still yours, and you can still withdraw tax-free for qualified medical expenses (including Medicare premiums). But no new money can go in.
Here's where teachers get tripped up: if you enroll in Medicare Part A after age 65, your coverage is retroactively backdated up to 6 months. Any HSA contributions you made during that retroactive period become excess contributions — subject to a 6% excise tax for every year they remain in the account.
And if you start collecting Social Security at 65 or older, you're automatically enrolled in Medicare Part A — no choice, no opt-out. That triggers the same contribution cutoff.
The safe move: Stop HSA contributions at least 6 months before you plan to apply for Medicare or Social Security. This protects you from the retroactive coverage trap. If you're still working past 65 with employer health coverage and haven't enrolled in Medicare, you can keep contributing — but plan your exit carefully.
I want to show you what this looks like for two teachers at different stages of their careers — one going all-in on the receipt tracking strategy, and one using the HSA more practically for current expenses. Both approaches work.
Jessica is 35, makes $65,000/year, and switched to her district's high-deductible health plan with an HSA. Her district contributes $1,000/year, and she contributes $3,400 more ($4,400 total individual max). Not all districts contribute to your HSA — many don't. If yours does, that's a bonus. If not, you can still max it out yourself and get every tax advantage described here.
She pays current medical bills out-of-pocket (about $1,500/year) and invests the majority of her HSA balance in a total stock market index fund (for illustration purposes).
After 30 years assuming a hypothetical 7% average annual return:
Compare this to paying those medical expenses from a 403(b), where she'd pay income tax on every withdrawal. In this hypothetical, the HSA could potentially save her tens of thousands in taxes over retirement.
Marcus (42) and Lisa (40) are both teachers with a family HDHP. They max out their family HSA at $8,750/year.
They use HSA funds for current family expenses — copays, dental work including braces, vision care, prescriptions, and urgent care visits — averaging about $6,000/year. The remaining $2,750 stays invested.
Their HSA balance grows to about $85,000 by the time Marcus retires at 60. When they both need health insurance until Medicare at 65, they use the HSA to cover premiums tax-free—saving them from pulling taxable money out of their 403(b)s.