This guide covers the 2027 tax year, with the related federal return generally filed in 2028. As of November 2026, the IRS had not published a 2027 Form 8889 or instructions. The latest final edition is 2025, and a 2026 draft is marked not for filing. Line numbers below come from the 2025 edition and are labelled that way. Check them against the final 2027 form before you file.
Australian tax treatment is outside the scope here and may need separate local advice.
Key Takeaways
- Contributions, distributions, testing-period failures, or an inherited HSA can trigger a Form 8889 filing.
- Part I covers contributions and the deduction, Part II distributions, Part III testing-period income and tax.
- Reconcile the form with W-2, Forms 1099-SA and 5498-SA, and expense receipts.
- The final 2027 IRS form and instructions control over earlier editions.
What Form 8889 Reports and Who Must File
Form 8889 does four jobs: it reports contributions, calculates the HSA deduction, reports distributions, and calculates taxable amounts and additional taxes. The 2025 edition attaches to Form 1040, 1040-SR, or 1040-NR.
Who must file Form 8889?
Under the 2025 instructions, you file if any of these apply:
- You or someone on your behalf (including an employer) made HSA contributions
- You received HSA distributions
- You must include income because you failed the last-month-rule testing period
- You received an interest in an HSA because the account holder died
Which taxpayers may need more than one Form 8889?
Spouses with separate HSAs file a separate Form 8889 for each account, even on a joint return. Each spouse's coverage, contributions, distributions, and catch-up eligibility stay on that spouse's own form.
With family HDHP coverage, spouses generally split the family limit equally unless they agree on a different allocation. A spouse's catch-up contribution goes into that spouse's own HSA.
Warning: Receiving an HSA distribution can require Form 8889 even if you have little or no other taxable income. Confirm against the current filing rules.
2027 HSA Eligibility, Contribution Limits, and Documents to Gather
What makes someone eligible to contribute to an HSA?
For any given month, you generally need all of the following:
- HDHP coverage on the first day of the month
- No disqualifying additional health coverage (other than permitted coverage)
- No Medicare enrolment
- No status as another taxpayer's dependent
The HDHP must meet the minimum deductible and maximum out-of-pocket limits. Recent legislation also changed some eligibility rules: certain telehealth services before the deductible, Exchange bronze and catastrophic plans, and qualifying direct primary care arrangements, as set out in IRS Notice 2026-05.
The 2027 figures from Rev. Proc. 2026-24:
| Measure | 2027 amount |
|---|---|
| Contribution limit, self-only | $4,500 |
| Contribution limit, family | $9,000 |
| Catch-up (age 55+) | $1,000 |
| HDHP minimum deductible, self-only / family | $1,750 / $3,500 |
| HDHP maximum out-of-pocket, self-only / family | $8,700 / $17,400 |
| Direct primary care monthly fee cap, one / more than one individual | $150 / $300 |
The $1,000 catch-up is statutory for eligible individuals who reach 55 by the end of the tax year.
How contribution sources affect the deduction
Contributions you make from after-tax money are the ones you deduct. Employer contributions, including cafeteria-plan salary reductions, appear in W-2 Box 12 Code W. They aren't a second personal deduction. They use up part of your annual limit instead.
Other contribution types follow different rules:
- Rollovers aren't deductible and don't count against the limit. Account-holder rollovers must be completed within 60 days and are limited to one per 12 months.
- Direct trustee-to-trustee transfers aren't reported as distributions or contributions.
- A qualified HSA funding distribution is a one-time lifetime transfer from an IRA. It isn't deductible and reduces the room for other contributions.
- Contributions for a tax year can be made until the unextended return due date.
Documents to collect before completing the form
- W-2 with Box 12 Code W, where applicable
- Form 1099-SA for every distribution
- Form 5498-SA, if available
- HSA trustee statements and contribution confirmations
- Coverage records by month
- Receipts proving qualified medical expenses
Form 5498-SA is informational and often arrives after you've filed. Under the 2025 instructions, trustees had until 1 June 2026 to issue it. Use trustee records in the meantime, and check the 2027 instructions for how late-posted contributions are treated.
How to Complete Form 8889 for 2027, Part by Part
The line references below are from the 2025 edition.
Part I: Report contributions and calculate the HSA deduction
Start by identifying your coverage type and the months you were eligible. Then apply the annual limit or the month-by-month calculation using the instructions' worksheet. The monthly amounts are totalled and divided by 12 for line 3.
Key points for Part I:
- Line 2 is for contributions you made personally, including those made by the unextended filing deadline for that year.
- Line 9 is for employer contributions. Don't repeat Code W amounts on line 2.
- Rollovers and other separately treated amounts stay off the personal contribution line.
- Employer amounts, Archer MSA contributions, qualified HSA funding distributions, and catch-up contributions all change the limit calculation.
- The deduction lands on line 13 and flows to Schedule 1 (Form 1040), line 13 in 2025. Verify the 2027 reference.
Part II: Report HSA distributions
Total distributions from all your HSAs using Form 1099-SA. Box 3 codes help you sort them:
- 1: normal
- 2: excess contributions
- 3: disability
- 4: death
- 5: prohibited transaction
- 6: post-death to a non-spouse beneficiary
Rollovers and timely returned excess contributions are handled separately. In 2025, returned excess contributions and earnings go on line 14b.
Qualified medical expenses are those under IRC section 213(d) for you, your spouse, or your dependants. They must be incurred after the HSA was established, and only to the extent insurance or another source didn't pay them. Publications 502 and 969 are the references.
Taxable distributions equal distributions minus qualified expenses. In 2025, that amount flows to Schedule 1, Part I, line 8f.
A 20% additional tax applies to the taxable amount and flows to Schedule 2, Part II, line 17c. It doesn't apply to distributions after death, disability, or age 65. Verify the 2027 percentage and lines.
Part III: Last-month rule and qualified funding distribution testing
Part III applies when you used the last-month rule to claim the full-year limit, or made a qualified HSA funding distribution, and then stopped being eligible during the testing period.
Under the 2025 example, a person eligible on 1 December 2025 has a testing period running from 1 December 2025 through 31 December 2026. If eligibility ends early, the extra contributions become income on line 20 (Schedule 1, line 8f), plus a 10% additional tax on line 21 (Schedule 2, line 17d).
For example, suppose you used the last-month rule for a year, claimed $2,000 more than the monthly calculation allowed, and then dropped HDHP coverage during the testing period. Those $2,000 would be income, with a $200 additional tax at 10%. Confirm the actual 2027 dates and lines before relying on this.
Special Rules, Penalties, and Common Form 8889 Problems
Excess HSA contributions
Add up personal, employer, catch-up, and other relevant amounts, then compare the total to your limit. The excess is not deductible. If it stays in the account, a 6% excise tax applies each year, reported on Form 5329, Part VII.
To avoid the excise tax, withdraw the excess and its earnings by the return due date, including extensions. The earnings are income for the year withdrawn. The Form 5329 instructions also allow a withdrawal within six months after the unextended due date in a specified case. Verify the 2027 rules before acting.
Additional tax on nonqualified distributions
A nonqualified distribution is ordinary income and, is generally also subject to the additional tax. Reaching the applicable age, disability, or death removes the additional tax, but the distribution can still be taxable.
Don't assume every medical-looking payment qualifies. Premiums are mostly excluded, with exceptions such as long-term-care insurance, COBRA, coverage during unemployment, and Medicare after 65 (Medigap excluded). Anything reimbursed by another source doesn't qualify either.
Common filing mistakes to avoid
- Double-counting W-2 Code W amounts on line 2
- Using outdated line numbers
- Entering a spouse's HSA activity on your form
- Attaching Form 5498-SA or 1099-SA, which are supporting records rather than attachments
- Claiming expenses incurred before the HSA existed
Keep the categories straight:
- Contribution: deductible money you put in
- Rollover or trustee transfer: moves funds without a deduction
- Qualified funding distribution: comes from an IRA and starts a testing period
- Corrective withdrawal: removes an excess and goes on the distribution side
When professional review may be appropriate
Get a second set of eyes if you:
- File as a cross-border taxpayer
- File jointly with separate HSAs
- Changed coverage or enrolled in Medicare
- Used the last-month rule
- Have excess contributions or IRA-to-HSA transfers
Businesses and individuals who need recurring U.S. tax-compliance support can work with VJM Global's U.S.-compliant tax and accounting professionals on document reconciliation and filing. This is not IRS authorisation or Australian tax advice. IRS guidance states there is no separate HSA rule for taxpayers abroad.
2027 Form 8889 Final Checklist and Compliance Note
Before filing, confirm:
- Eligible months and coverage type for each spouse
- Contribution sources and the 2027 limit
- Employer and payroll amounts (Code W)
- Every Form 1099-SA received
- Form 5498-SA data, if available
- Qualified-expense records
- Whether each spouse needs a separate Form 8889
Then reconcile:
- Part I contributions to source records
- Part II distributions to every Form 1099-SA
- Taxable amounts to the correct schedules
- Part III entries to documented testing-period events
Compliance note: The final 2027 IRS Form 8889, instructions, revenue procedures, and publications control. This article is educational. It doesn't replace personalised tax advice or separate Australian tax guidance.
Frequently Asked Questions
What is Form 8889 on a tax return?
It reports HSA contributions and distributions, calculates the HSA deduction, and determines certain taxable income or additional tax. You file it with your Form 1040 series return.
How do I get my HSA tax form?
Download Form 8889 and its instructions from the IRS Forms and Publications pages, selecting the 2027 version once released. Your HSA trustee supplies Forms 1099-SA and 5498-SA.
Do I need both 1099-SA and 5498-SA?
Form 1099-SA reports distributions. Form 5498-SA reports contributions and year-end information. Both are supporting records and generally aren't attached to the return.
Where do I report HSA contributions on 1040?
Form 8889 calculates the deductible amount, which flows to Schedule 1 (line 13 on recent forms; confirm the line on your 2027 Schedule 1). Employer contributions are handled separately within the Form 8889 calculation.
How do I report HSA distributions on a tax return?
Enter Form 1099-SA totals in Part II. Qualified expenses reduce the taxable amount, and taxable distributions or additional tax flow to the relevant schedules.
How do I report the return of an excess HSA contribution?
Arrange a timely withdrawal with your trustee, including earnings, and don't deduct the withdrawn excess. Follow the final 2027 Form 8889 and Form 5329 instructions.
