The HSA is the most tax-advantaged account in the United States — and most people are using it wrong. While 70% of HSA holders use their account as a medical spending account (contributing money and spending it on current medical bills), the real power of an HSA is as a long-term investment vehicle. Contributions are tax-deductible, growth is tax-free, and withdrawals for medical expenses are tax-free — a triple tax advantage that no IRA, 401(k), or Roth IRA can match.
This guide compares the best HSA accounts for investing and saving, helping you choose the right one for both current medical expenses and long-term wealth building.
Best HSA Accounts at a Glance
| Provider | Monthly Fee | Investment Option | Investment Threshold | Fund Expense Ratios | Interest (Cash) | Best For |
|---|---|---|---|---|---|---|
| Fidelity | $0 | Full Fidelity platform | $0 | 0.00–0.08% | 2.69% | Best for investing |
| Lively | $0 | Schwab integration | $0 | 0.03–0.08% | 0.01% | Best free HSA |
| HSA Bank | $2.50/mo* | TD Ameritrade | $1,000 cash min. | 0.03–0.50% | 0.05% | Common employer HSA |
| HealthEquity | $3.95/mo | HealthEquity platform | $1,000–$2,000 cash min. | 0.09–0.50% | Tiered | Largest HSA administrator |
| Optum Bank | $2.75/mo* | Betterment or self-directed | $2,000 cash min. | 0.25% mgmt or varies | — | UnitedHealthcare integration |
| Further (formerly SelectAccount) | $0 | Devenir platform | $1,000 cash min. | 0.15–0.50% | 0.50% | Employer-provided option |
Monthly fee may be waived with minimum balance or by employer
Detailed Reviews
Fidelity HSA — Best Overall for Investing
| Feature | Details |
|---|---|
| Monthly fee | $0 |
| Investment minimum | $0 (invest from the first dollar) |
| Cash minimum to invest | $0 (no cash threshold) |
| Investment options | Entire Fidelity platform — stocks, ETFs, mutual funds |
| Zero-fee index funds | FZROX, FZILX, FZIPX, FNILX |
| Interest on cash | 2.69% APY |
| Debit card | Yes |
| Mobile app | Yes (integrated with Fidelity brokerage) |
| FDIC/SIPC | SIPC (investment), FDIC (cash) |
Fidelity’s HSA is the clear winner for investors. Unlike every other HSA provider, Fidelity has no monthly fees, no minimum cash balance requirement, and allows investing from the first dollar. At most other HSAs, you must keep $1,000–$2,000 in cash before you can invest — reducing your investable balance. Fidelity eliminates this entirely. You also get access to Fidelity’s zero-expense-ratio index funds, meaning you can invest your HSA with literally $0 in fees at every level.
Why this matters: On a $10,000 HSA balance at Fidelity, you pay $0 in monthly fees and $0 in fund expenses. At HealthEquity, you’d pay $47.40/year in monthly fees plus fund expenses — a total that compounds to hundreds over a decade.
Best for: Anyone who wants to invest their HSA long-term for maximum tax-free growth
Lively — Best Free HSA with Schwab Integration
| Feature | Details |
|---|---|
| Monthly fee | $0 |
| Investment minimum | $0 |
| Cash minimum to invest | $0 |
| Investment platform | Charles Schwab (self-directed) |
| Fund access | Full Schwab platform |
| Interest on cash | 0.01% |
| Debit card | Yes |
| Mobile app | Yes |
| Employer plans | Available |
Lively is the best alternative to Fidelity, especially if you prefer Schwab’s investment platform. Like Fidelity, there are no monthly fees and no cash threshold for investing. The Schwab integration gives you access to thousands of ETFs and mutual funds. The only downside: the 0.01% cash interest rate is poor compared to Fidelity’s 2.69%, so keep as little cash as possible if you use Lively.
Best for: Schwab users who want a free HSA with full investment access
HSA Bank — Best Common Employer HSA
| Feature | Details |
|---|---|
| Monthly fee | $2.50/month (often waived by employer or at $5,000+ balance) |
| Investment platform | TD Ameritrade (Schwab) |
| Cash minimum to invest | $1,000 |
| Fund expense ratios | 0.03–0.50% |
| Interest on cash | 0.05% |
| Debit card | Yes |
HSA Bank is one of the most common employer-provided HSAs. The $2.50/month fee and $1,000 cash threshold are downsides, but if your employer pays the monthly fee (many do), it becomes more competitive. The TD Ameritrade integration provides access to a wide range of ETFs and mutual funds. If your employer offers HSA Bank and pays the fee, it’s a solid option — but if you’re choosing on your own, Fidelity is better.
Best for: Employees whose employer offers and subsidizes HSA Bank
HSA Triple Tax Advantage Explained
The HSA is the only account with all three tax benefits:
| Tax Benefit | HSA | Roth IRA | Traditional IRA | 401(k) | Taxable Brokerage |
|---|---|---|---|---|---|
| Tax-deductible contributions | ✓ | ✗ | ✓ | ✓ | ✗ |
| Tax-free growth | ✓ | ✓ | ✗ | ✗ | ✗ |
| Tax-free withdrawals (medical) | ✓ | ✓ (contributions only) | ✗ | ✗ | ✗ |
| Tax-free withdrawals (any purpose, age 65+) | Income tax only | ✓ | ✗ | ✗ | Capital gains tax |
No other account offers all three tax benefits. A $4,300 HSA contribution saves you the contribution tax ($946 at the 22% bracket), grows tax-free, and can be withdrawn tax-free for medical expenses forever. Over 30 years, the tax savings compound to tens of thousands of dollars.
HSA Contribution Limits (2026)
| Coverage Type | 2025 Limit | 2026 Limit | Catch-Up (Age 55+) |
|---|---|---|---|
| Self-only | $4,150 | $4,300 | +$1,000 |
| Family | $8,300 | $8,550 | +$1,000 |
HDHP requirements (2026):
| HDHP Requirement | Self-Only | Family |
|---|---|---|
| Minimum deductible | $1,650 | $3,300 |
| Maximum out-of-pocket | $8,300 | $16,600 |
HSA as a Retirement Investment: Growth Projections
Maxing HSA Contributions ($4,300/year Individual, Invested at 8% Return)
| Years | Total Contributed | HSA Value | Tax-Free Growth |
|---|---|---|---|
| 5 | $21,500 | $27,115 | $5,615 |
| 10 | $43,000 | $66,971 | $23,971 |
| 15 | $64,500 | $126,084 | $61,584 |
| 20 | $86,000 | $212,725 | $126,725 |
| 25 | $107,500 | $338,456 | $230,956 |
| 30 | $129,000 | $519,042 | $390,042 |
$390,042 in tax-free growth. That’s equivalent to earning $500,000+ pre-tax in a traditional IRA, since HSA medical withdrawals owe zero tax.
Family Coverage: $8,550/Year Invested at 8%
| Years | Total Contributed | HSA Value | Tax-Free Growth |
|---|---|---|---|
| 10 | $85,500 | $133,106 | $47,606 |
| 20 | $171,000 | $422,888 | $251,888 |
| 30 | $256,500 | $1,031,483 | $774,983 |
A couple maxing family HSA contributions for 30 years could accumulate over $1 million in a completely tax-free account.
HSA Fee Comparison: How Fees Erode Your Balance
10-Year Cost Comparison on $4,300/Year Contributions (Invested at 8%)
| Provider | Monthly Fee | Fund Expense | Cash Threshold Lost Returns | Total 10-Year Cost | Portfolio Value |
|---|---|---|---|---|---|
| Fidelity | $0 | $0 (ZERO funds) | $0 | $0 | $66,971 |
| Lively + Schwab | $0 | ~$200 (0.03%) | $0 | $200 | $66,771 |
| HSA Bank | $300 | ~$200 | ~$400 | $900 | $66,071 |
| HealthEquity | $474 | ~$500 | ~$600 | $1,574 | $65,397 |
Fidelity’s $0 total cost advantage compounds over decades — the difference grows to $3,000–$5,000 over 30 years.
The HSA Investment Strategy
Pay Out of Pocket, Invest the HSA (Advanced Strategy)
The most powerful HSA strategy: pay current medical expenses from your checking account and let your HSA grow invested and untouched. Save your medical receipts. You can reimburse yourself from the HSA at any time — even years later — tax-free.
| Approach | How It Works | Best For |
|---|---|---|
| Spend HSA on current medical bills | Pay medical expenses directly from HSA | People who need the money now |
| Invest HSA, pay out of pocket | Pay medical bills from checking; keep HSA invested | People with cash flow to cover bills |
| Reimburse later | Pay from checking now, reimburse from HSA years later | Maximum tax-free growth |
Example: You have a $2,000 medical bill in 2026. Instead of paying from your HSA, you pay from your checking account and keep $2,000 invested in your HSA. In 20 years, that $2,000 grows to $9,322 at 8% — and you can still withdraw it tax-free by submitting your 2026 receipt. You turned a $2,000 medical bill into $9,322 of tax-free money.
HSA Investment Portfolio Recommendations
| Approach | Allocation | Expected Return | Risk | Best For |
|---|---|---|---|---|
| Simple (one fund) | 100% target-date fund | 7–8% | Moderate | Hands-off investors |
| Aggressive | 90% US stock index / 10% international | 8–10% | Higher | Young, long time horizon |
| Moderate | 70% stock / 30% bond | 7–8% | Moderate | Most people |
| Conservative | 40% stock / 60% bond | 5–6% | Lower | Nearing retirement |
HSA vs. FSA: Key Differences
| Feature | HSA | FSA |
|---|---|---|
| Annual limit (individual, 2026) | $4,300 | $3,300 |
| Rolls over year to year | Yes (unlimited) | $640 max rollover |
| Yours if you change jobs | Yes | No (use it or lose it) |
| Investment option | Yes | No |
| Requires HDHP | Yes | No |
| Tax-deductible contributions | Yes | Yes (pre-tax) |
| Tax-free withdrawals (medical) | Yes | Yes |
| Tax-free growth | Yes | N/A (can’t invest) |
| Can use for retirement (age 65+) | Yes | No |
If you have access to both, the HSA is almost always better due to rollover, portability, and investment growth. For a detailed comparison, see our FSA vs. HSA guide.
Where HSA Fits in Your Financial Priority Order
| Priority | Account | Why This Order |
|---|---|---|
| 1 | 401(k) up to employer match | Free money (50–100% instant return) |
| 2 | HSA (max it out) | Triple tax advantage — better than Roth IRA |
| 3 | Roth IRA (max it out) | Tax-free growth, no RMDs |
| 4 | 401(k) up to max ($23,500) | Additional tax-deferred savings |
| 5 | Taxable brokerage | No limits, flexible access |
The HSA belongs before the Roth IRA in most cases because the triple tax advantage (deduction + tax-free growth + tax-free withdrawals) beats the Roth’s double advantage (tax-free growth + tax-free withdrawals). The only exception: if you don’t have enough cash flow to pay medical expenses out of pocket, prioritizing the Roth may be practical.
How to Transfer Your HSA
If your employer uses an HSA provider with high fees, you can transfer (trustee-to-trustee) or roll over (60-day) your balance to a better provider like Fidelity:
| Transfer Type | How It Works | Tax Reporting | Limit |
|---|---|---|---|
| Trustee-to-trustee | New provider requests transfer from old provider | None required | Unlimited |
| 60-day rollover | You withdraw and redeposit within 60 days | Must report on tax return | Once per 12 months |
Recommended approach: Open a Fidelity HSA, then request a trustee-to-trustee transfer from your current provider. Keep contributing to your employer’s HSA (for payroll tax savings), and periodically transfer the balance to Fidelity for investing.
Common HSA Mistakes
| Mistake | Cost | Solution |
|---|---|---|
| Not investing HSA balance | Missing 30 years of tax-free growth | Invest in index funds after building small cash buffer |
| Using HSA for every medical bill | Losing compound growth | Pay out of pocket, keep HSA invested |
| Not saving receipts | Can’t reimburse later | Keep digital copies of all medical receipts |
| Choosing high-fee provider | $2,000–$5,000+ over career | Transfer to Fidelity or Lively |
| Not maxing contributions | Lost triple tax advantage | Contribute $4,300 (individual) or $8,550 (family) annually |
| Leaving employer HSA when changing jobs | Stuck with high-fee provider | Transfer to Fidelity after leaving |
Frequently Asked Questions
Can I open an HSA if my employer doesn’t offer one?
Yes. You can open an HSA at any provider (Fidelity, Lively, etc.) as long as you’re enrolled in an HDHP — even if your employer doesn’t offer an HSA option. You’ll contribute with after-tax dollars and deduct the contributions on your tax return.
What happens to my HSA if I leave my HDHP?
Your HSA balance stays yours forever — you can spend it on qualified medical expenses tax-free at any time. You just can’t make new contributions while not enrolled in an HDHP. The invested balance continues to grow tax-free.
Can I use my HSA to pay health insurance premiums?
Generally, no. HSAs cannot pay current health insurance premiums. Exceptions: COBRA premiums, health insurance while receiving unemployment, Medicare premiums (Part A, B, D), and long-term care insurance premiums.
What counts as a qualified medical expense?
The IRS defines qualified expenses in Publication 502. Common examples: doctor visits, prescriptions, dental care, vision care (glasses, contacts, LASIK), mental health therapy, medical equipment, and some over-the-counter medications. Cosmetic procedures generally don’t qualify.
For more on Medicare and HSA planning, see the Medicare & HSA hub.
For more on Medicare and HSA planning, see the Medicare & HSA hub.
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