Everything You Need To Know To Get Started With Your HSA
A complete 2026 guide - eligibility, contributions, eligible expenses, LMNs, investing, and taxes. All in one place.
What is an HSA?
The only account in the US tax code with a triple tax advantage — and it never expires.
A Health Savings Account lets you set aside pre-tax money for qualified medical expenses. It is available exclusively to people enrolled in a qualifying High Deductible Health Plan. Unlike an FSA, your balance rolls over every year and is yours to keep permanently — regardless of employer or health plan changes.
In Pre-Taxed
Contributions reduce your taxable income. Payroll contributions may also skip FICA taxes — an additional 7.65% for most employees.
Grows Tax-Free
Invested balances compound completely tax-free. No capital gains, no dividend tax, no annual tax hit on growth.
Out Tax-Free
Withdrawals for qualified medical expenses are tax-free. After age 65, non-qualified withdrawals are taxed as ordinary income — no penalty.
No other account does all three. A 401(k) taxes withdrawals. A Roth IRA taxes contributions. A taxable brokerage taxes growth. The HSA is the only account in the US tax code with a genuine triple tax advantage.
For more detailed information, please check our HSA 101 article below.
Source: IRS Publication 969
How Do You Qualify for an HSA?
Eligibility is checked on the first day of each month — all four IRS conditions must be met.
Before opening an HSA you must meet all four IRS eligibility requirements. Eligibility is verified on the first day of the month — you can only contribute during months when all four conditions are satisfied.
How to Confirm
✓ Review your insurance card for HDHP designation
✓ Check your Summary of Benefits document
✓ Call your insurance provider if unsure
✓ Check healthcare.gov for Marketplace plansAll Four Must Be True
✓ Enrolled in an HSA-eligible high-deductible health plan (HDHP)
✓ No other disqualifying health coverage
✓ Not enrolled in Medicare
✓ Not claimed as a dependent on another's return
What Is a High Deductible Health Plan (HDHP)?
An HDHP is a health insurance plan with a higher annual deductible than traditional plans, paired with lower monthly premiums. The IRS sets minimum deductible and maximum out-of-pocket thresholds each year — your plan must meet both to qualify. Your insurance card or Summary of Benefits will indicate whether your plan is HDHP-designated. The table below shows the 2026 thresholds.Coverage TypeHDHP Minimum DeductibleHDHP Maximum Out-Of-PocketSelf-only$1,700$8,500Family$3,400$17,000Note on ACA Marketplace plans: Some Bronze and Catastrophic ACA Marketplace plans may qualify as HDHPs if they meet IRS HDHP requirements. Check your plan's Summary of Benefits or call your insurer to confirm eligibility before assuming your plan qualifies.
For more detailed information, please check our HSA 101 article below:
How Do You Open an HSA?
Whether through your employer or independently, the full tax benefit is the same.
Once you confirm HDHP eligibility, you can open an HSA in two ways. Either path gives you the full tax deduction — the difference is in fees and investment flexibility.
Option A — Through Your Employer
Check your benefits package
Many employers offer an HSA through open enrollment. Employer HSAs often include employer contributions — free money. Note: fees may be higher and investment options more limited. You can roll the balance to a better account at any time.
Option B — Open Independently
Full control, different options
Open through any HSA provider regardless of whether your employer offers one. You still receive the full federal tax deduction. May offer more flexibility on fees and investment choices from day one.
Our recommendation: Fidelity HSA — no account fees, no minimum to open, and no minimum balance required to start investing. Lively HSA — free for individuals and families, insured and interest-bearing cash balance, with optional investing. Both are strong options for anyone who wants to invest their balance.
For more detailed information, please check our HSA 101 article below.
Source: Fidelity HSA | Lively HSA | IRS Publication 969
How Do You Contribute to an HSA?
2026 limits, deadlines, and the contribution rules that matter.
The IRS sets annual contribution limits based on your coverage type. These limits include all contributions — yours, your employer's, and any other source. If you are 55 or older, you can contribute an additional $1,000 per year as a catch-up contribution. Limits are prorated if you were not HSA-eligible for the full year.
Coverage Type2026 Annual LimitMonthly EquivalentSelf-only$4,400$367 / monthFamily$8,750$729 / monthCatch-up age 55+ (additional)$1,000$83 / monthSelf-only + catch-up$5,400$450 / monthFamily + catch-up$9,750$813 / monthHow to Contribute: There are two ways to fund your HSA. The method you choose affects how much you save in taxes — payroll deductions are the most efficient because they reduce both income tax and FICA taxes before the money ever hits your paycheck.
Via Payroll Deduction
Contributions through payroll are pre-tax and can avoid federal income tax and FICA taxes, and may also reduce state income tax, depending on where you live. Set them up through your employer's benefits portal if available.
Direct Contribution
Transfer from your bank account anytime before the tax deadline. You still get the federal income tax deduction, but you won't get the FICA savings that payroll contributions can provide. Report the deduction on Form 8889 with your Form 1040.
Important rules: All contributions — yours plus your employer's — count toward the annual limit. Employer contributions and any Archer MSA contributions reduce the amount you can contribute directly. Deadline for 2026 contributions: April 15, 2027. Excess contributions are subject to a 6% excise tax until corrected.
For more detailed information, please check our HSA 101 article below:
How Do You Use an HSA?
Spend as you go, invest and grow, or a combination of both.
Once your HSA is open and funded, you choose how to use the balance. Most people default to spending as they go — but that leaves significant tax-free growth on the table. Here are the three approaches and how they compare.
Option A:
Spend As You Go
Use your HSA card for eligible expenses as they occur. Simple and accessible. Best for people with ongoing medical costs who need funds readily available.
Option B:
Invest and Grow
Pay expenses out of pocket. Keep your HSA fully invested. Save receipts and reimburse yourself later — there is no time limit on reimbursement.
Option C:
Combination
Keep a small cash buffer for near-term expenses. Invest everything above that buffer. Pay eligible purchases with cash, check, or personal credit card. Save your receipts, and reimburse yourself on your own timeline.
The Shoebox Strategy: Pay eligible expenses out of pocket with a rewards credit card → Keep your HSA balance fully invested → Save every itemized receipt digitally → Reimburse yourself on your own schedule — months or years later. There is no IRS time limit on how long you can wait to reimburse yourself, as long as the expense occurred after your account was opened.
Key rule: There is no time limit on HSA reimbursement. The expense just needs to have occurred after your account was opened. This is what makes the shoebox strategy work — pay out of pocket now, stay fully invested, reimburse yourself months or years later
For more detailed information, please check our HSA 101 articles below.
Source: IRS Notice 2004-50 Q/A-39
What is HSA Eligible?
Three tiers — know which category an expense falls into before you buy.
IRS Publication 502 defines qualified medical expenses as amounts paid for the diagnosis, cure, mitigation, treatment, or prevention of disease.
General health and wellness purchases do not qualify by default — the expense must be primarily to alleviate or prevent a physical or mental condition.
Expenses fall into three categories:
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Auto eligible — qualified medical expenses you can pay from your HSA right away.
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Need an LMN — expenses that may qualify only with a Letter of Medical Necessity from a licensed provider.
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Not eligible — personal, cosmetic, or general wellness expenses that don't meet IRS medical-care rules.
✓ Auto Eligible
✓ Doctor visits & urgent care
✓ Prescription medications
✓ Dental — exams, fillings, orthodontia
✓ Vision — exams, glasses, contacts
✓ Sunscreen SPF 15 or higher
✓ Feminine hygiene products
✓ OTC medications — pain, allergy, cold
✓ Blood pressure monitors
✓ Prenatal vitamins
✓ Breast pumps & lactation supplies
✓ CPAP machines and supplies
✓ Hearing aids and batteries
✓ First aid supplies✓ Many additional items
⚠ May Qualify With an LMN
✓ Supplements for diagnosed deficiencies
✓ Fitness trackers and smartwatches
✓ Smart scales with body composition
✓ Therapeutic mattresses
✓ Gym memberships
✓ Massage therapy
✓ Mental health apps with clinical backing
✓ Air purifiers
✓ Lab testing
An LMN supports medical necessity but does not automatically guarantee eligibility — it depends on the expense and your administrator.✗ Generally Does Not Qualify
✗ Gym memberships without an LMN
✗ General vitamins and supplements
✗ Cosmetic procedures
✗ Teeth whitening
✗ Health foods and organic groceries
✗ Insurance premiums (with limited exceptions)
✗ Toothpaste, shampoo, and personal hygiene
✗ Fitness apparel and running shoes without LMN✗ Anything not listed as automatically eligible by the IRS or not documented to diagnose, cure, treat, mitigate, or prevent a disease.
Always verify with your HSA administrator before purchasing any items not listed on the IRS's list. Eligibility for documented items may vary by plan.
For more HSA eligible items, check out our search tool:
Source: IRS Publication 502 | CARES Act 2020 Section 3702
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What is a Letter of Medical Necessity (LMN)?
A Letter of Medical Necessity connects a product to a diagnosed condition — it does not automatically make an item eligible.
A Letter of Medical Necessity (LMN) is a document from a licensed healthcare provider that establishes a connection between a specific product or service and a documented medical condition. It supports eligibility for gray-area items (items not automatically eligible per the IRS) — but your HSA administrator makes the final determination.
You can obtain a letter directly through your doctor and through telehealth services that connect you to a licensed clinician who can issue a Letter of Medical Necessity (LMN).
Through Your Doctor
Talk to your primary care provider about products connected to your documented health conditions. Most physicians are familiar with the process and can document the medical necessity in a letter or clinical note.
For more information, please check out our full LMN breakdown here:
Source: IRS Section 213(d) | IRS Publication 502
How Do You Pay for HSA Expenses?
Use your HSA card or pay out of pocket and reimburse yourself — both work.
When you are ready to use your HSA, you have two payment options. Both are valid — your choice comes down to whether you want simplicity or want to maximize tax-free investment growth by keeping the money invested as long as possible.
Use Your HSA Debit Card
Pay at point of sale: Use directly for automatically eligible items. Keep your itemized receipt showing product, date, and amount. Best for pharmacies, doctor's offices, and clearly eligible OTC purchases.
Pay Out of Pocket and Reimburse
Invest longer: Pay with cash or a personal credit card. Save your receipt and any supporting documentation. Submit reimbursement through your HSA portal. No deadline — reimburse yourself anytime after the expense occurred. a dependent on another's return
Important note: Any time money leaves your HSA — whether through your debit card or a reimbursement — it is called a distribution.
The IRS categorizes distributions as either qualified or non-qualified.
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Qualified distributions are completely tax-free.
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Non-qualified distributions trigger income tax and, if you are under age 65, an additional 20% penalty.
Keep every receipt. Your HSA administrator or the IRS may request documentation at any time. The IRS does not require receipts with your return — but you must produce them if audited. Again, non-qualified distributions before age 65 incur a 20% penalty in addition to income tax.
For additional information, please check our HSA 101 articles:
Source: IRS Publication 969 | IRS Section 223(f)(4)
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Why Should You Invest Your HSA Balance?
Don't leave money on the table. Invest your HSA balance for tax-free growth.
Most people treat their HSA like a spending account — money in, money out. But any balance you don't need for near-term expenses can be invested and grows completely tax-free. Over time, the difference between spending your HSA and investing it is significant.
For example, if you invested $8,750 (the current family max contribution) per year at a 7% average annual return, here are the results in 10 and 20 years:
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10 years → approximately $120,800 — completely tax-free (only $87,500 balance without interest)
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20 years → approximately $380,500 — completely tax-free (only $175,000 balance without interest)
The Shoebox Strategy — Maximize Long-Term Growth: Pay eligible expenses out of pocket with a rewards credit card → Keep your HSA balance fully invested in a low-cost index fund → Save every itemized receipt and LMN digitally → Reimburse yourself on your own schedule — months or years later. There is no time limit under IRS Notice 2004-50.
We'll be diving more into this topic in future articles. Please subscribe if you would like to be notified when we post additional articles.
Investing involves risk, including possible loss of principal. Past performance does not guarantee future results. Consult a qualified financial advisor before making investment decisions.
Source: IRS Publication 969
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