How to Use an HSA to Build Wealth

When most people hear “Health Savings Account,” they think of a place to stash a little cash for doctor visits and prescriptions. And that’s one way to use it. But an HSA is quietly one of the most powerful savings tools in the entire tax code, and almost nobody talks about it that way.

Here’s why: an HSA is the only account in existence that offers a triple tax advantage. Your contributions are tax-deductible, the money grows tax-free, and withdrawals for qualified medical expenses are tax-free. No other account, not a 401(k), not a Roth IRA, not a brokerage account, can make that claim.

If you’re eligible and you’re not using one, you’re leaving a significant planning opportunity on the table.

Who qualifies for an HSA

To contribute to an HSA, you need to be enrolled in a qualifying high-deductible health plan (HDHP). Historically, the IRS set specific deductible and out-of-pocket thresholds that a plan had to meet to qualify. That has always been the primary gatekeeper.

As of January 1, 2026, the rules expanded significantly. Under the One Big Beautiful Bill Act, all Bronze and Catastrophic plans available through the ACA Marketplace are now automatically HSA-eligible, even if their deductible or out-of-pocket structure doesn’t fit the traditional HDHP definition.

That opens the door for millions of people who previously couldn’t access an HSA despite carrying high out-of-pocket exposure.

Beyond your health plan, there are a few other eligibility rules to know. You can’t be enrolled in Medicare, and you can’t be claimed as a dependent on someone else’s tax return. You also generally can’t have other first-dollar health coverage alongside your HDHP.

There are exceptions, though, and one of them got a meaningful update in 2026. If you have a Direct Primary Care (DPC) membership, where you pay a flat monthly fee for access to a primary care physician, that arrangement no longer disqualifies you from contributing to an HSA.

As long as the monthly fee stays at or below $150 for individuals or $300 for families, your HSA eligibility is fully intact. DPC fees are now also classified as qualified medical expenses, which means you can reimburse them directly from your HSA.

If you’re a young professional on a Bronze ACA plan, an employer-sponsored HDHP, or even a DPC-plus-HDHP arrangement, there’s a good chance you’re already eligible or can get there with one plan adjustment.

The triple tax advantage, unpacked

First, contributions are tax-deductible. If you contribute through your employer’s payroll, the money comes out before federal income tax and before FICA taxes (Social Security and Medicare). If you contribute on your own, you claim the deduction on your tax return. Either way, every dollar you put in reduces your taxable income for the year.

Second, the money grows tax-free. Most HSA providers allow you to invest your balance in mutual funds or index funds once it exceeds a certain threshold. That invested balance compounds without generating any taxable events. No capital gains tax, no tax on dividends. It just grows.

Third, withdrawals are tax-free when used for qualified medical expenses. That includes doctor visits, prescriptions, lab work, physical therapy, and even some over-the-counter items.

The list is broader than most people realize. Put those three layers together, and you have an account where money goes in tax-free, grows tax-free, and comes out tax-free. That’s a combination no other savings vehicle can match.

One more thing worth knowing if you’re 55 or older: the IRS allows a catch-up contribution of an additional $1,000 per year on top of the standard limit, as long as you’re not yet enrolled in Medicare. That’s a meaningful bump if you’re using the HSA as part of a longer-term retirement strategy.

Don’t spend it now

Here’s where the HSA goes from “useful” to “powerful.” If you can afford to pay your current medical expenses out of pocket and leave your HSA balance invested, you’re essentially turning it into a long-term wealth-building account.

There’s no deadline for reimbursing yourself. You can pay a medical bill out of pocket today, save the receipt, and reimburse yourself from your HSA ten or twenty years from now, after the money has had decades to grow tax-free.

The IRS doesn’t require you to withdraw the money in the same year you incur the expense. You just need to keep the receipts.

What happens at 65

After you turn 65, the rules change in your favor. Withdrawals for qualified medical expenses are still completely tax-free. But withdrawals for non-medical expenses are no longer subject to the 20% penalty.

They’re simply taxed as ordinary income, just like a traditional IRA or 401(k) distribution. That means your HSA effectively becomes a flexible retirement account with a healthcare bonus built in.

Given that healthcare tends to be one of the largest expenses in retirement, having a dedicated pool of tax-free money earmarked for those costs is a meaningful advantage.

There is one important tradeoff to know about. Once you enroll in Medicare Part A or Part B, you can no longer make contributions to your HSA. For most people this happens at 65, but if you’re still working and covered by an employer HDHP, you may be able to delay Medicare enrollment and keep contributing.

This is a decision worth thinking through carefully, because the timing matters.

Contributing even a few extra years before enrolling in Medicare can add meaningfully to your balance.

Common mistakes to avoid

The biggest mistake is treating the HSA like a spending account. If you drain it every year to cover routine expenses, you miss the compounding opportunity entirely. The second mistake is not investing the balance. Many HSA providers default your contributions to a cash position that earns next to nothing. You typically need to log in and manually select investment options, and too many people never take that step.

The third mistake is losing track of receipts. If you plan to reimburse yourself years later, create a simple system (a folder on your computer, a dedicated email label) and save every receipt for every qualified expense you pay out of pocket. Your future self will thank you.

More than a medical account

The HSA doesn’t get the attention that a 401(k) or Roth IRA does. But for people who are eligible and willing to use it strategically, it’s one of the most efficient tools in the entire financial planning toolkit.

The 2026 rule changes make it more accessible than ever, and the core advantages haven’t changed: it reduces your taxes today, grows your wealth silently in the background, and gives you completely tax-free access to money when you need it most. That’s not just a healthcare account. That’s a planning advantage.

FAQ

Who actually qualifies for an HSA?

You generally need a qualifying high-deductible health plan (HDHP). As of January 1, 2026, ACA Marketplace Bronze and Catastrophic plans are also treated as HSA-eligible, which is a big expansion. You also cannot be on Medicare and you cannot be claimed as a dependent on someone else’s return.

What makes an HSA so powerful compared to a 401(k) or Roth IRA?

It is the only account with a true triple tax advantage:

• Contributions can be tax-deductible
• Growth can be tax-free
• Withdrawals for qualified medical expenses can be tax-free
  No other account checks all three boxes.

Can I invest my HSA, or is it supposed to sit in cash?

You can invest it, and if you are trying to build wealth, you usually should. Many HSA providers default your money to cash, so you may need to manually choose investment options. The basic idea: keep enough cash for near-term expenses, then invest the rest for long-term compounding.

What is the “don’t spend it now” strategy everyone talks about?

This is where the HSA goes from useful to powerful. If you can afford it, pay current medical costs out of pocket, save the receipts, and leave the HSA invested. There is no requirement to reimburse yourself in the same year. You can reimburse yourself years later and pull the money out tax-free as long as the expense was qualified and documented.

What changes after age 65?

After 65, qualified medical withdrawals are still tax-free. If you withdraw for non-medical reasons, the extra penalty goes away, and it is generally taxed like ordinary income (similar to a traditional IRA).

One key catch: once you enroll in Medicare, you typically cannot keep contributing to the HSA, so timing matters.

Sources:

https://www.investopedia.com/terms/h/hsa.asp
https://www.investopedia.com/maximize-your-hsa-8599495

This information is provided as general information and is not intended to be specific financial guidance.  Before you make any decisions regarding your personal financial situation, you should consult a financial or tax professional to discuss your individual circumstances and objectives. The source(s) used to prepare this material is/are believed to be true, accurate and reliable, but is/are not guaranteed.