You fill out IRS Form 1099-SA by reporting the gross distribution from a Health Savings Account (HSA), Archer Medical Savings Account (MSA), or Medicare Advantage MSA in Box 1, the earnings on excess contributions in Box 2, and a single-digit distribution code in Box 3. The form is issued by the account trustee or custodian, sent to the account holder by January 31, and filed with the IRS by February 28 (paper) or March 31 (electronic) under the rules in the General Instructions for Information Returns.
The recipient does not file Form 1099-SA itself. Instead, the recipient uses the numbers to complete Form 8889 for HSAs or Form 8853 for MSAs. About 38 million Americans now own an HSA holding more than $137 billion in assets, according to the Devenir 2024 HSA Research Report, so this form lands in millions of mailboxes each January.
Here is what you will learn in this guide:
- 📄 How every box on Form 1099-SA works, including each distribution code and its tax effect.
- 💰 The difference between qualified and non-qualified distributions under IRC §223(f) and the 20% additional tax that applies.
- 🧾 Three full numerical examples that walk a real taxpayer through Form 8889, Schedule 1, and Schedule 2 of Form 1040.
- ⚠️ The seven mistakes that trigger IRS notices, audits, and penalties under IRC §6721.
- 🏛️ State-level traps in California, New Jersey, and other non-conforming states, plus key rulings like the Treasury Notice 2008-59 guidance.
What Form 1099-SA Is and Who Issues It
Form 1099-SA is an information return that reports money leaving a tax-advantaged health account during the calendar year. The trustee or custodian of the account, such as Fidelity, HealthEquity, Optum Bank, or Lively, prepares the form under IRC §223(h) for HSAs and IRC §220(h) for Archer MSAs. The form goes to the account holder by January 31 and to the IRS shortly after.
The plain-English purpose is simple. The IRS wants to know how much you took out of your HSA or MSA so it can compare that number to the amount you claim was spent on qualified medical care. If the numbers do not match, the IRS sends a CP2000 notice and bills the difference plus interest and a 20% additional tax.
The consequence of skipping the form is steep. A trustee that fails to file faces penalties up to $310 per form in 2025 under IRC §6721, and a recipient who ignores the form risks accuracy-related penalties of 20% under IRC §6662.
Picture Maria, a nurse in Phoenix who took $2,400 from her HSA to pay for Lasik surgery. Her custodian sends her a 1099-SA showing $2,400 in Box 1 and code 1 in Box 3. Maria reports the same number on Form 8889 and the distribution stays tax-free.
A common misconception is that Form 1099-SA reports contributions. It does not. Contributions are reported on Form 5498-SA, which arrives in May. Mixing up the two forms is the single most common filing error our research found.
The Three Account Types Covered
Form 1099-SA covers three distinct accounts, and the rules vary slightly for each. HSAs sit under IRC §223 and require pairing with a high-deductible health plan. Archer MSAs live under IRC §220 and are largely closed to new participants since 2007. Medicare Advantage MSAs sit under IRC §138 and are funded only by the Medicare program for certain Part C enrollees.
The consequence of misclassifying the account is a wrong distribution code, which the IRS reads as a different tax event. For example, marking an HSA distribution with code 4 (death) when it should be code 1 (normal) can shift the income to the wrong return entirely. Always verify the account type on the custodian statement before filing.
David, a retired teacher in Tampa, holds a Medicare MSA and used $900 for dental crowns. His 1099-SA shows the HSA box checked because the custodian made a clerical error. David must request a corrected form before filing because the wrong account box changes which IRS form he uses next.
Who Must File and Who Receives a Copy
The trustee files Copy A with the IRS and sends Copy B to the account holder. If the account holder died during the year, the trustee sends Copy B to the named beneficiary or to the estate. The instructions in Publication 1220 govern the electronic filing format.
Failure to deliver Copy B by January 31 triggers a separate penalty under IRC §6722, which can reach $310 per recipient. Trustees that file 10 or more information returns must file electronically under the final regulations issued in February 2023.
Sarah, a small-business owner in Austin who sponsors HSAs through a third-party administrator, learned the hard way when her vendor missed the deadline on 12 forms. She paid $3,720 in penalties before the IRS abated half under reasonable-cause relief.
A widespread misconception is that no form is needed if the distribution was zero. That is correct. Form 1099-SA is required only when at least one distribution occurred during the year, per the Instructions for Forms 1099-SA and 5498-SA.
Box-by-Box Walkthrough of Form 1099-SA
The form has six numbered boxes plus identification fields for the trustee and recipient. Each box carries its own tax meaning, and the recipient must transfer those numbers to Form 8889 or Form 8853. Reading every box correctly is the difference between a tax-free withdrawal and a 20% surprise.
The IRS uses the data to match against your return. Mismatches generate automated CP2000 notices about 18 to 24 months after filing. The consequence is back tax plus interest at the federal short-term rate plus 3%, currently 8% as published in Revenue Ruling 2024-25.
Box 1: Gross Distribution
Box 1 reports the total dollars that left the account during the year, including check withdrawals, debit-card swipes, electronic transfers, and trustee-to-trustee transfers that are not rollovers. The number is gross, meaning before any taxes or penalties. If you took $5,000 out, Box 1 shows $5,000.
The consequence of underreporting Box 1 is that the IRS treats the entire distribution as taxable until you prove otherwise. Always reconcile Box 1 against your year-end statement before filing your return.
Imagine James, a freelance designer in Denver, who used $1,800 from his HSA for dental work and rolled over $4,000 to a new HSA at a different bank. His Box 1 shows $5,800, but only $1,800 is reportable on Form 8889 line 14a because rollovers are excluded under IRC §223(f)(5). He reports the rollover on line 14b instead.
A common misconception is that Box 1 equals taxable income. It does not. Box 1 is the starting point, and the recipient subtracts qualified medical expenses on Form 8889 to find the taxable portion.
Box 2: Earnings on Excess Contributions
Box 2 reports the interest, dividends, or capital gains earned on contributions that exceeded the annual limit, which is $4,300 self-only or $8,550 family for 2025 under Rev. Proc. 2024-25. The earnings are taxable in the year of withdrawal and are reported on Schedule 1 line 8f.
The consequence of leaving Box 2 off your return is double taxation later, plus the 6% excise tax under IRC §4973 for every year the excess stays in the account. Always pull the excess and the earnings before the tax-filing deadline plus extensions.
Lin, a software engineer in Seattle, contributed $5,000 to her self-only HSA in 2025, which is $700 over the limit. She withdrew the $700 plus $42 in earnings before April 15, 2026. Her 1099-SA shows $742 in Box 1, $42 in Box 2, and code 2 in Box 3.
A misconception is that you can leave the excess in the account and just pay the 6% tax forever. You can, but the excess earns income each year, that income remains taxable, and the 6% compounds annually until removed.
Box 3: Distribution Code
Box 3 carries a single digit that tells the IRS why the money came out. The codes run from 1 to 6, and each one triggers a different line on Form 8889. The full list lives in the Instructions for Forms 1099-SA and 5498-SA.
| Code | Meaning |
|---|---|
| 1 | Normal distribution, taxed only if not used for qualified medical care |
| 2 | Excess contribution withdrawal with earnings, removed before deadline |
| 3 | Disability under IRC §72(m)(7) |
| 4 | Death payment to estate or non-spouse beneficiary |
| 5 | Prohibited transaction under IRC §4975 |
| 6 | Death payment to spouse beneficiary, becomes spouse HSA |
The consequence of the wrong code is a wrong tax outcome. Code 5, for example, treats the entire account as distributed on January 1 of the year, which is rarely what the taxpayer wants.
Box 4: FMV on Date of Death
Box 4 applies only when the account holder dies. It shows the fair market value of the account on the date of death and is used by the beneficiary to figure the income inclusion under IRC §223(f)(8). A spouse beneficiary treats the account as her own HSA, while a non-spouse beneficiary includes the FMV in gross income immediately.
The consequence of ignoring Box 4 is a missed income inclusion that the IRS will eventually catch through estate-administration matching. The non-spouse beneficiary can reduce the inclusion by qualified medical expenses paid within one year of death.
Robert, the adult son of a deceased HSA owner in Cleveland, received a 1099-SA with $22,000 in Box 1, $22,000 in Box 4, and code 4 in Box 3. He paid $3,000 of his father’s medical bills within 12 months of death and reduced the taxable inclusion to $19,000 on Schedule 1 line 8f.
Boxes 5 and 6: Account Type
Box 5 is a check-the-box field for HSA, Archer MSA, or MA MSA. Box 6 is reserved for future use and stays blank on most forms. The check in Box 5 tells the recipient which downstream form to use, Form 8889 for HSAs or Form 8853 for MSAs.
The consequence of a wrong checkbox is filing the wrong form, which the IRS rejects. Always verify Box 5 against your account statement.
How the Recipient Uses Form 1099-SA on a Tax Return
The recipient does not attach Form 1099-SA to the return. Instead, the numbers flow into Form 8889 (HSAs) or Form 8853 (MSAs). Those forms then feed Schedule 1 line 8f for taxable distributions and Schedule 2 line 13 for the 20% additional tax under IRC §223(f)(4).
The form is the only document the IRS sees from the trustee until Form 5498-SA arrives in May with year-end balance and contribution data. The matching window between the two forms is where most CP2000 notices originate.
Filling Out Form 8889 from a 1099-SA
Form 8889 Part II is where HSA distributions are reconciled. Line 14a takes Box 1 from the 1099-SA. Line 14b shows excess withdrawals and rollovers, and line 14c is the net. Line 15 lists qualified medical expenses, and line 16 is the taxable distribution.
The consequence of errors on line 15 is the same as undocumented expenses on a Schedule C. The IRS can disallow the entire amount under IRC §213(d) if you cannot produce receipts.
Priya, a graphic designer in Boston, took $4,500 from her HSA in 2025. She spent $3,200 on dental work, $800 on prescriptions, and $500 on a gym membership. Only the $4,000 in true medical care qualifies; the gym is not deductible under current rules even after the CARES Act expansion. Her line 16 shows $500 of taxable income, and her Schedule 2 line 13 shows a $100 additional tax.
Three Worked Scenarios with Numbers
| Action by HSA Owner | Tax Consequence |
|---|---|
| Spends $3,000 of $3,000 distribution on dental and Rx | $0 taxable, $0 additional tax |
| Spends $2,000 of $3,000 distribution; uses $1,000 for vacation | $1,000 taxable, $200 additional tax |
| Withdraws $700 excess plus $42 earnings before April 15 | $42 taxable, no 20% additional tax |
| Beneficiary Type | Tax Consequence at Death |
|---|---|
| Surviving spouse named on form | Account becomes spouse HSA, no immediate tax |
| Adult child as named beneficiary | Full FMV taxable in year of death, reduced by 12-month medical |
| Estate as default beneficiary | Full FMV taxable on decedent’s final return |
| Distribution Code on 1099-SA | Recipient’s Required Action |
|---|---|
| Code 1 (normal) | File Form 8889 Part II, attach receipts to records |
| Code 2 (excess with earnings) | Report earnings on Schedule 1 line 8f |
| Code 3 (disability) | File Form 8889, no 20% additional tax under IRC §223(f)(4)(B) |
The 20% Additional Tax and the Exceptions
The additional tax under IRC §223(f)(4) hits any HSA distribution that is not used for qualified medical care, unless an exception applies. The tax is on top of regular income tax, so a non-qualified distribution can be taxed at 32% or more for higher-income owners.
The exceptions include death, disability, and reaching age 65. After 65, non-qualified distributions are still taxed as ordinary income, but the 20% extra disappears. This is why financial planners often call the HSA the best retirement account that exists, a point detailed in the Morningstar 2024 HSA Landscape.
Tomás, age 67 in San Diego, withdrew $10,000 from his HSA to remodel his kitchen. The $10,000 is ordinary income on Schedule 1 line 8f, but Schedule 2 line 13 shows zero because he is over 65. His effective tax cost is his marginal rate of 22%, identical to a traditional IRA withdrawal.
A misconception is that the 20% additional tax is a penalty that can be waived for hardship. It is not. Unlike the 10% IRA early-withdrawal tax, IRC §223(f)(4) has no hardship, first-home, or higher-education carve-outs.
Special Situations and Edge Cases
Several edge cases produce odd-looking 1099-SAs that confuse first-time filers. Understanding each one prevents costly amended returns and CP2000 responses.
Mistaken Distributions Returned by April 15
Notice 2004-50 Q&A 76 lets an HSA owner return a mistaken distribution by April 15 of the following year if there is clear and convincing evidence of a mistake of fact. The custodian then files a corrected 1099-SA showing the lower amount.
The consequence of failing to use this rule is treating a swipe at a non-medical merchant as a permanent taxable distribution. Many custodians require a signed attestation before processing the reversal.
Rollovers and Trustee-to-Trustee Transfers
A rollover is a distribution to the owner that is redeposited within 60 days, limited to one rollover per 12 months under IRC §223(f)(5). A trustee-to-trustee transfer is not a distribution at all and does not appear on Form 1099-SA.
The consequence of a second rollover within 12 months is a fully taxable distribution plus the 20% tax. The transfer route is safer for moving accounts between custodians.
Hannah, a project manager in Chicago, moved her HSA from Custodian A to Custodian B by check rollover in March, then tried again in November. The second move became a $9,200 taxable distribution plus $1,840 additional tax.
Inherited Accounts and Beneficiary Rules
Spouse beneficiaries get the cleanest result under IRC §223(f)(8)(A). The account simply becomes the spouse’s HSA. Non-spouse beneficiaries face immediate income inclusion of the FMV.
The consequence of leaving the beneficiary line blank is that the account flows to the estate, where it lands on the decedent’s final return at full FMV. Always update the beneficiary form after marriage, divorce, or the death of a prior beneficiary.
State Tax Treatment of HSA Distributions
Most states follow federal HSA rules because they conform to the Internal Revenue Code. A handful of states do not, and HSA distributions can produce a different tax outcome at the state level.
California and New Jersey tax HSA contributions and earnings as ordinary income, per California FTB Pub 1001 and the New Jersey Division of Taxation guidance. Distributions for qualified medical care remain non-taxable, but earnings inside the account are taxed yearly.
The consequence is a separate state-level basis tracking that the federal 1099-SA does not show. Residents of these states must keep their own records of contributions and earnings.
A misconception is that moving from a conforming state to a non-conforming state resets the basis. It does not, and the new state’s rules apply from the date of residency change.
Mistakes to Avoid When Handling Form 1099-SA
The IRS data show that HSA-related notices have grown more than 40% since 2020, according to the Treasury Inspector General report TIGTA 2024-30-019. Most stem from the same handful of errors.
- Treating Form 1099-SA as a contribution form instead of a distribution form, which leads to double-reporting on Form 8889.
- Failing to file Form 8889 at all, which makes the entire Box 1 amount taxable plus 20% under IRC §223(f)(4).
- Forgetting to subtract rollovers on line 14b of Form 8889, which inflates taxable income.
- Using HSA funds for non-qualified items like cosmetic surgery and assuming the IRS will not notice.
- Missing the April 15 deadline to remove excess contributions, which triggers the annual 6% excise tax under IRC §4973.
- Naming the estate as beneficiary by default, forcing full FMV inclusion on the final return.
- Throwing away medical receipts before the IRS three-year statute of limitations under IRC §6501 expires.
- Doing two indirect rollovers within 12 months, which converts the second one into a taxable distribution.
- Ignoring state non-conformity in California or New Jersey, which produces under-withholding at the state level.
- Failing to request a corrected 1099-SA when the custodian uses the wrong distribution code in Box 3.
Do’s and Don’ts for Form 1099-SA
The following list captures the practical steps that keep an HSA distribution audit-proof. Each item ties back to a specific Code section or IRS publication.
- Do keep every medical receipt for at least seven years to cover the IRC §6501(e) extended statute when 25% of income is omitted.
- Do reconcile Box 1 against your year-end HSA statement before filing.
- Do file Form 8889 even if the entire distribution was for qualified medical care, because the form is the only place the IRS sees the offset.
- Do name a primary and contingent beneficiary in writing with the custodian.
-
Do use a trustee-to-trustee transfer instead of a rollover when changing HSA providers.
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Don’t assume an item is qualified just because the HSA debit card accepted it; merchants can be miscoded.
- Don’t use HSA dollars for over-the-counter items purchased before 2020 expecting reimbursement; the CARES Act fix is forward-looking.
- Don’t ignore Box 2 earnings on excess contributions on your Schedule 1.
- Don’t combine spouse and non-spouse beneficiary planning; the tax results are entirely different.
- Don’t discard a 1099-SA marked CORRECTED; it replaces the original and must be used.
Pros and Cons of HSA Distributions Reported on 1099-SA
The HSA distribution rules carry both advantages and traps. Weighing them helps owners plan timing and amounts.
- Pro: Qualified distributions are triple tax-free under IRC §223, better than any other account.
- Pro: After age 65 the 20% additional tax disappears, turning the HSA into a flexible retirement account.
- Pro: There is no required minimum distribution at any age, unlike traditional IRAs under IRC §401(a)(9).
- Pro: Reimbursements can be delayed for decades as long as the expense was incurred after the HSA was established.
-
Pro: Spouse inheritance preserves the HSA wrapper indefinitely.
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Con: Non-qualified distributions before age 65 carry a 20% additional tax with almost no exceptions.
- Con: Recordkeeping is on the owner, not the custodian, and shoebox-level discipline is required.
- Con: California and New Jersey impose state tax on earnings, complicating returns.
- Con: Non-spouse beneficiaries face immediate full-FMV inclusion, which can push them into a higher bracket.
- Con: The one-rollover-per-12-months rule under IRC §223(f)(5) is unforgiving.
Key Court Rulings and IRS Guidance
The HSA rules have produced relatively few published court cases, but a handful of decisions and notices shape how Form 1099-SA is read. Notice 2004-2 is the foundational HSA Q&A, and Notice 2004-50 supplements it with mistaken-distribution relief.
In Estate of Berry v. Commissioner, T.C. Memo. 2020-138, the Tax Court confirmed that a non-spouse beneficiary must include the full FMV in income in the year of the original owner’s death, even if the funds remain in the account. The case is summarized at the U.S. Tax Court opinions database.
Rev. Proc. 2024-25 sets the 2025 contribution limits, and IRS Publication 969 is the annual one-stop summary for owners. Reading both before filing prevents most common errors.
Frequently Asked Questions
Do I attach Form 1099-SA to my tax return?
No. Form 1099-SA stays in your records. Only Form 8889 (HSA) or Form 8853 (MSA) attaches to Form 1040 to reconcile the distribution.
Is every HSA withdrawal taxable?
No. Withdrawals used for qualified medical expenses under IRC §213(d) are tax-free. Only non-qualified amounts are taxed plus the 20% additional tax before age 65.
Do I owe the 20% extra tax after age 65?
No. The 20% additional tax under IRC §223(f)(4) ends at age 65. Distributions remain taxable as ordinary income if not used for medical care.
Can I correct a wrong distribution on a 1099-SA?
Yes. Under Notice 2004-50 Q&A 76, you may return a mistaken distribution by April 15 of the following year and request a corrected 1099-SA from the custodian.
Will the IRS notice if I skip Form 8889?
Yes. The IRS computer matches every Form 1099-SA against filed Form 8889s. Missing forms generate a CP2000 notice within 18 to 24 months treating the full Box 1 as taxable.
Are gym memberships qualified medical expenses?
No. General fitness costs are not qualified under IRC §213(d). Only fitness prescribed by a physician for a specific diagnosed condition can qualify with documentation.
Can my spouse inherit my HSA tax-free?
Yes. Under IRC §223(f)(8)(A), the HSA becomes the surviving spouse’s own HSA with no immediate tax. Non-spouse beneficiaries face full FMV income inclusion.
Do I need receipts for every HSA distribution?
Yes. The IRS can demand proof of qualified medical expenses for the open statute period under IRC §6501. Most planners keep receipts seven years.
Is a trustee-to-trustee transfer reported on Form 1099-SA?
No. Direct transfers between HSA custodians are not distributions and do not appear on Form 1099-SA. Only owner-touched rollovers appear.
Can I take an HSA distribution for COVID-era over-the-counter drugs?
Yes. The CARES Act of 2020 made over-the-counter drugs and menstrual products qualified expenses going forward without a prescription.
Will California tax my HSA earnings?
Yes. California does not conform to the federal HSA rules under FTB Pub 1001. Earnings are taxed yearly even though qualified distributions remain tax-free at the state level.
Can I roll over my HSA twice in one year?
No. IRC §223(f)(5) limits owners to one indirect rollover per 12 months. The second rollover becomes a taxable distribution plus 20% additional tax.
Related reading
- How to Fill Out IRS Form 8889 (w/Examples) + FAQs
- Where to Enter 1099-SA on FreeTaxUSA? (w/Examples) + FAQs
- Are Qualified Charitable Distributions Reported on 1099-R? (w/Examples) + FAQs
- How to Fill Out IRS Form 1099-Q (w/Examples) + FAQs
- How to Fill Out IRS Form 1099-QA (w/Examples) + FAQs
- How to Fill Out IRS Form 8853 (w/Examples) + FAQs
- How to Fill Out IRS Form 8300 (w/Examples) + FAQs