HSA vs Limited Purpose FSA
Last updated July 2026
HSA (Health Savings Account)
The triple-tax-advantaged health investment account
Advantages
- Triple tax advantage: pre-tax in, tax-free growth, tax-free out for medical
- Portable, invest for long-term growth
- Rolls over indefinitely
- After age 65, funds withdrawable for any purpose
- You own the account
Drawbacks
- Requires HDHP enrollment
- Contribution limit $4,300 / $8,550 family (2026)
- 20% penalty for non-medical withdrawals before 65
- HDHPs mean higher out-of-pocket costs before insurance kicks in
Limited Purpose FSA (LPFSA)
HSA-compatible FSA restricted to dental and vision expenses
Advantages
- Can be used alongside an HSA (unlike standard FSA)
- Pre-tax dollars for dental and vision expenses
- $3,300 annual limit (2026)
- Preserves HSA balance for investment and long-term growth
- Employer may add contribution above employee election
Drawbacks
- Restricted to dental and vision only (not general medical)
- Use it or lose it, most funds expire at year end
- Not portable, lost when you leave employer
- Only available if your employer offers it
An HSA and a Limited Purpose FSA (LPFSA) can be used together and often should be. An HSA is the triple-tax-advantaged personal account for anyone on an HDHP. An LPFSA is an employer-offered FSA restricted to dental and vision expenses, which lets you preserve HSA funds for investment while paying dental and vision from pre-tax LPFSA dollars.
Feature Comparison
| Feature | HSA (Health Savings Account) | Limited Purpose FSA (LPFSA) |
|---|---|---|
| Annual Contribution Limit | $4,300 individual / $8,550 family (2026) | $3,300 individual (2026) |
| Eligible Expenses | All qualified medical, dental, vision | Dental and vision expenses only |
| Rollover Rules | Unlimited, rolls over forever | $640 carryover OR 2.5-month grace period |
| Account Ownership | You own it; portable | Employer-owned; lost when you leave |
| Combinable With Other Accounts | Yes, with Limited Purpose FSA (dental/vision only) | Yes, specifically designed to work with an HSA |
| Tax Advantage | Triple tax advantage | Pre-tax contributions |
| Eligibility | Must be enrolled in an HDHP | Requires employer to offer LPFSA option |
| Withdrawal Rules | Tax-free for qualified medical; taxed for non-medical after 65 | Reimbursement claims for dental and vision only |
Too Close to Call
Not a versus, use both if your employer offers LPFSA. Pay dental and vision from the LPFSA, keep the HSA invested for long-term growth.
This pairing is a stealth strategy for HSA maximalists. Standard FSAs disqualify you from contributing to an HSA, but LPFSA is designed to coexist. Contribute your dental and vision spend to the LPFSA (pre-tax reimbursement) and let your HSA compound untouched for decades. Fund order: fill the HSA to the annual limit first, then use LPFSA for dental/vision if you have those expenses.
Related Comparisons
HSA vs FSA
Two tax-advantaged health accounts with very different rules and long-term value.
HSA vs HRA
Employee-owned triple-tax-advantaged HSA meets the employer-owned HRA, which is the smarter benefit?
HSA vs 401(k)
The triple-tax-advantaged health account meets the classic retirement vehicle, which should you fund first?