Form 1099-SA (2024): Checklist
Form 1099-SA reports distributions from Health Savings Accounts (HSAs), Archer Medical Savings Accounts (MSAs), or Medicare Advantage MSAs during the 2024 calendar year. Recipients use this form to determine taxable versus nontaxable distribution amounts and file corresponding Forms 8853 or 8889. The form provides essential information, including gross distribution amounts, earnings on excess contributions, distribution codes, fair market value on date of death (when applicable), and account type identification.
Understanding the proper treatment of distributions is critical for accurate tax reporting. HSA and Archer MSA distributions used for qualified medical expenses of the account holder, spouse, or dependents are generally nontaxable. Medicare Advantage MSA distributions follow more restrictive rules, as these accounts are designated solely for the account holder’s qualified medical expenses. Special rules apply to inherited accounts, excess contributions, and mistaken distributions.
Completion Steps (Recipient)
1. Verify Taxpayer Identification Information
Confirm your complete taxpayer identification number (TIN)—which may be a Social Security Number (SSN), Individual Taxpayer Identification Number (ITIN), Adoption Taxpayer Identification Number (ATIN), or Employer Identification Number (EIN)—appears on Copy B of your Form 1099-SA. For privacy protection, only the last four digits of your TIN should display on copies filed with the IRS. Compare the information on your form with your records to ensure accuracy before filing your tax return.
2. Identify Account Type and Distribution Code
Review Box 5 to determine your account type—HSA, Archer MSA, or Medicare Advantage MSA. Cross-reference the distribution code in Box 3 to identify the nature of your distribution:
Code 1: Normal distributions (including direct payments to medical service providers)
Code 2: Excess contribution distributions
Code 3: Disability distributions
Code 4: Death distributions to estates or in the year of death
Code 5: Prohibited transaction distributions
Code 6: Death distributions after the year of death to nonspouse beneficiaries
Understanding your distribution code is crucial for accurate tax treatment and proper reporting on Form 8889 or Form 8853.
3. Determine Taxability of Medical Expense Distributions
For HSA or Archer MSA distributions used to pay qualified medical expenses, confirm the distribution is nontaxable. Qualified medical expenses include those incurred by you, your spouse, or your dependents. For Medicare Advantage MSA distributions, the account is designated to be used solely for the payment of qualified medical expenses of the account holder. Unlike HSAs and standard Archer MSAs, Medicare Advantage MSA distributions for spouse or dependent medical expenses do not qualify for tax-free treatment and are subject to full income inclusion. This restriction has always applied to Medicare Advantage MSAs and reflects their fundamental design as Medicare-specific accounts.
4. Spousal Beneficiary Treatment for Inherited HSAs
If you inherited an HSA from a deceased spouse, the account transfers to your name and retains HSA status under spousal beneficiary rules. You become the account holder, and the HSA continues operating as your own HSA. You may roll the inherited HSA into your existing HSA or maintain it as a separate account without triggering income inclusion. The key benefit of spousal beneficiary treatment is that the account maintains its tax-advantaged HSA status, and distributions continue to be tax-free when used for qualified medical expenses. This favorable treatment applies only to surviving spouses, not to other beneficiaries.
5. Nonspouse Beneficiary Taxation
If you inherited an HSA, Archer MSA, or Medicare Advantage MSA from a nonspouse beneficiary (or as a nonspouse beneficiary yourself), the account ceases to be a tax-advantaged medical savings account as of the date of death. Report the fair market value (FMV) shown in Box 4—representing the account’s date-of-death value—as taxable income on your tax return for the year the account owner died, regardless of when you actually received distributions. This is a critical timing rule: taxation occurs in the year of death, not the year of distribution. You may reduce the taxable amount by qualified medical expenses of the deceased paid within one year after death.
6. Report Earnings on Excess Contributions
Include the Box 2 earnings amount (earnings on excess contributions withdrawn by the due date of your income tax return) on the “Other income” line of your 2024 Form 1040 or 1040-SR. These earnings are always taxable, even if the original contribution amount is not included in income and even if the earnings were used for qualified medical expenses. The earnings represent income generated while the excess contributions remained in the account and must be reported separately from the gross distribution amount shown in Box 1.
7. Withdraw Excess Contributions Timely
If Box 3 shows distribution code 2 (excess contributions), verify you withdrew the excess contribution plus associated earnings by the tax return due date (without extensions) for 2024. If excess contributions remain in your HSA or Archer MSA after the due date, you must pay a 6% excise tax annually on the excess amount for each year it remains in the account. Calculate and report this excise tax on Form 5329. The 6% penalty applies each year until the excess is withdrawn, making timely correction essential.
8. Understand Mistaken Distribution Repayment Rules
If you took a distribution in 2024 that qualifies as a mistaken distribution due to a mistake of fact and reasonable cause, you may repay it to avoid taxation. The repayment deadline is April 15 following the first year you knew or should have known the distribution was a mistake—not simply the April 15 following the distribution year. For example, if you took a mistaken distribution in March 2024 but did not discover the error until June 2025, your repayment deadline would be April 15, 2026. Your HSA trustee is not required to accept mistaken distribution repayments but may do so based on your representation that the distribution qualifies. If accepted and repaid promptly, the distribution is not included in income, is not subject to the 20% additional tax, and the repayment is not treated as a new contribution subject to annual limits.
9. Calculate Taxable Income for Nonspouse Beneficiaries
If you are a nonspouse beneficiary, calculate taxable earnings as Box 1 (gross distribution) minus Box 4 (FMV on date of death). This represents earnings and appreciation that accrued after the account holder’s death. Report this amount on the “Other income” line of your tax return, separate from the FMV income inclusion reported in the year of death. This ensures proper taxation of both the inherited account balance and any subsequent growth.
10. File Required Forms with Your Tax Return
File Form 8853 (for Archer MSA or Medicare Advantage MSA) or Form 8889 (for HSA) with your 2024 Form 1040 or 1040-SR if any of the following apply: you, your employer, or someone else made contributions to your account; your account made a distribution; you failed to be an eligible individual during a testing period; or you acquired an interest in an account due to the death of the beneficiary. If you had no contributions and no distributions during 2024, Form 8889 is not required. However, if you received any distributions—even those that are fully nontaxable for qualified medical expenses or rollovers—you must file the applicable form to provide complete account reconciliation.
11. Verify Account Number Accuracy
Review the account number displayed in Box 5 and compare it to your records to confirm the 2024 distribution corresponds to your specific account. This verification is crucial if you maintain multiple accounts or if your financial institution manages numerous accounts with similar identifiers.
12. Use Corrected Forms When Received
If you receive a CORRECTED Form 1099-SA, discard the original 2024 form immediately and use only the corrected copy to file your return. Corrected forms may reflect adjustments to distribution amounts, earnings calculations, distribution codes, or fair market values. Always use the most recent corrected version to ensure accurate reporting and avoid potential discrepancies with IRS records.
Conclusion
Proper completion and reporting of Form 1099-SA information ensures accurate tax treatment of distributions from health savings and medical savings accounts. Understanding the distinctions between account types, distribution codes, and beneficiary rules helps you avoid unnecessary taxation and penalties while maximizing the tax benefits these accounts provide for healthcare expenses.
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This checklist is for educational purposes only and does not constitute tax or legal advice. Always review official IRS instructions and consult a qualified professional for guidance.
