What Happens to My HSA If I Change Insurance?

If you change insurance, your Health Savings Account and every dollar in it stay with you. The account is yours personally, not your employer’s or your insurer’s, so a job change, a plan switch during open enrollment, or a move to a completely different carrier does not cost you the balance. What can change is whether you’re still allowed to put new money in. That depends entirely on whether your new coverage qualifies as a high deductible health plan under IRS rules.

The Account Stays With You

An HSA is a personal financial account, not a benefit tied to a specific plan year. Unlike a Flexible Spending Account, which generally forfeits unused balances when you leave, an HSA follows you through job changes, retirement, and any insurance switch.¹ Employer contributions that already landed in your account are yours to keep too.

One practical caveat: if your employer negotiated lower custodian fees as part of a group arrangement, those discounts may disappear when you leave. The balance itself is untouchable, but the account’s cost structure can shift. That’s a reason to check the fees on your old account after a job change, not a reason to worry about the money.

Can You Still Contribute Under the New Plan?

To keep contributing, your new coverage has to be a high deductible health plan. For 2026, the IRS defines an HDHP as a plan with an annual deductible of at least $1,700 for individual coverage or $3,400 for family coverage, with total out-of-pocket costs (excluding premiums) no higher than $8,500 for an individual or $17,000 for a family.² Miss those thresholds and contributions stop. Spending from the existing balance continues without interruption.

Not every plan with a high deductible actually qualifies. Some family plans use embedded deductibles that let individual members meet a lower threshold before the plan starts paying, which can disqualify the plan even when the overall deductible looks high enough. Plans that cover certain services at no cost before the deductible can also fail, unless that coverage falls within the preventive care the IRS specifically allows. If you’re unsure, the plan documents or your benefits administrator can confirm HSA compatibility.

Bronze and Catastrophic Plans Now Qualify

Starting January 1, 2026, bronze and catastrophic health plans are treated as HDHPs for HSA purposes even if they don’t meet the traditional deductible and out-of-pocket limits.³ Before this change, many bronze plan enrollees couldn’t contribute even though their real-world deductibles were often high. The plan does not have to be purchased through a government marketplace to qualify; off-exchange bronze and catastrophic plans count too. If you’re switching to a bronze plan for 2026, check whether it now makes you HSA-eligible when it previously wouldn’t have.

Direct Primary Care Arrangements

The same 2026 legislation made direct primary care arrangements compatible with HSA eligibility. If you enroll in a DPC arrangement alongside an HDHP, you can still contribute to your HSA and use the funds tax-free to pay periodic DPC fees.³ Before 2026, a DPC arrangement could be treated as disqualifying coverage.

What Happens to Your Contribution Limit Mid-Year

For 2026, contribution limits are $4,400 for individual HDHP coverage and $8,750 for family coverage. If you’re 55 or older, you can add another $1,000 on top.² These limits include both your contributions and any your employer makes.

If you switch away from an HDHP partway through the year, your limit shrinks to reflect only the months you had qualifying coverage. Divide the annual limit by 12, multiply by the number of HDHP months. Someone with individual coverage through June who then moves to a non-qualifying plan can contribute up to roughly $2,200 for the year (6/12 of $4,400).¹

The Last-Month Rule

Switching into an HDHP later in the year works the other direction. If you have HDHP coverage on December 1 and keep it through the entire following year (the “testing period”), you can contribute the full annual amount instead of a prorated share.¹ The catch is real: if you fail the testing period by dropping HDHP coverage before December 31 of the following year, the extra contributions above the prorated amount get added back to your taxable income, plus a 10% additional tax.

Coverage Traps That Kill Eligibility

Insurance changes sometimes create quiet overlaps that disqualify you from contributing even though your main plan looks fine.

The most common one is a spouse’s general-purpose FSA. If your spouse enrolls in a health FSA at work that can reimburse anyone in the family for any medical expense, the IRS treats you as having disqualifying coverage. You lose HSA eligibility, even if no claims are ever submitted.¹ A limited-purpose FSA covering only dental, vision, or preventive care is fine. Some employers also allow employees to restrict their FSA to reimburse only their own expenses, which preserves the other spouse’s HSA eligibility. Review the FSA’s summary plan description before open enrollment, because the design details matter.

Medicare Enrollment

Enrolling in any part of Medicare, including Part A, drops your HSA contribution limit to zero.¹ You can still spend the balance. If you turn 65 mid-year, the limit is prorated for the months before Medicare kicks in.

The trap is retroactive coverage. Applying for Social Security after age 65 automatically enrolls you in Medicare Part A, backdated up to six months, and you can’t opt out of the backdated period. Any HSA contributions made during those retroactive months become excess contributions after the fact. If you’re still working at 65 and want to keep funding your HSA, delay both Social Security and Medicare enrollment until you actually leave your employer’s HDHP.

Fixing Excess Contributions After a Switch

Mid-year plan changes are the most common cause of HSA overages. You contribute based on what you expected for the year, coverage changes, and the math no longer works. Left in place, the IRS charges a 6% excise tax on the excess for every year it stays in the account.¹

The fix is to withdraw the excess plus any earnings it generated before your tax filing deadline, typically April 15 of the following year. Contact your HSA custodian and specifically request an “excess contribution removal” so it’s coded correctly. The withdrawn earnings become taxable income for the year, but you avoid the ongoing 6% penalty. If you miss the deadline, the excise tax repeats every year until you either pull the money out or absorb it with unused contribution room in a later year. The penalty is reported on Form 5329.

Do You Need to Move the HSA?

Changing insurance doesn’t require moving your HSA. You may still want to if your new employer offers a different custodian with better investment options or lower fees. Three options exist, and they aren’t equivalent.

Trustee-to-Trustee Transfer

Your new provider contacts your old one and moves the funds directly. You never touch the money, there’s no tax reporting, and there’s no limit on how many transfers you can do in a year.¹ Start by asking the new provider for a transfer form. Some custodians charge a transfer-out fee, and the process can take a few weeks. Partial transfers are usually allowed if you want to keep balances in both places.

60-Day Rollover

In a rollover, your old custodian sends you the money and you have 60 days to deposit it into another HSA. Miss the window and the whole amount is a taxable distribution, with a 20% penalty if you’re under 65.¹ You’re also limited to one rollover every 12 months; a second one within that window gets taxed as income. There’s rarely a reason to pick this over a trustee-to-trustee transfer unless your custodian doesn’t support direct transfers.

Leaving Funds in Place

You can also just keep the old HSA open. The account doesn’t care who your current insurer is. The reason to consider consolidating is cost: some custodians charge monthly maintenance fees ranging from a few dollars to $5 or more, especially once employer subsidies end. Compare the fee structures and investment menus of both providers before deciding.

Spending the Balance Under the New Plan

Even if your new plan disqualifies you from contributing, every dollar already in the HSA remains available for qualified medical expenses tax-free. The IRS defines those broadly to include doctor visits, prescriptions, mental health care, dental and vision, and many over-the-counter treatments. There’s no deadline to spend the money and no annual forfeiture.

Health insurance premiums are generally not a qualified expense, with specific exceptions. You can use HSA funds tax-free for COBRA continuation coverage, health insurance premiums while receiving unemployment benefits, qualified long-term care insurance (subject to age-based annual limits), and, once you turn 65, any health insurance premiums other than Medigap policies.⁴ That last category matters in retirement because it includes Medicare Part B and Part D premiums. COBRA is worth knowing about if your insurance switch involves a job loss.

Tax Forms After a Mid-Year Switch

A plan change mid-year adds a reconciliation step at tax time because your actual contributions have to line up with a prorated limit. The forms involved:

Form 8889, filed with your return to report contributions, calculate your deduction, and flag excess amounts. Direct contributions made outside payroll are deducted here.
Form 1099-SA, sent by your HSA custodian to report any distributions you took during the year.
Form 5498-SA, filed by your custodian with the IRS to report total contributions.
Form W-2, Box 12, Code W, showing employer and payroll contributions. These already reduce your taxable wages, so you don’t deduct them again on Form 8889.

The most common mistake after a mid-year switch is forgetting to adjust contributions downward. If you contributed through payroll all year but only had HDHP coverage for eight months, the last four months of contributions are excess. Catch it before the filing deadline and withdraw the overage to avoid the 6% excise tax.⁵ If you used the last-month rule and then failed the testing period, Form 8889 Part III is where the income inclusion and the 10% additional tax get reported.

1
Internal Revenue Service. Publication 969 (2025), Health Savings Accounts and Other Tax-Favored Health Plans
2
Internal Revenue Service. Notice 2026-5, Expanded Availability of Health Savings Accounts Under the One, Big, Beautiful Bill Act
3
Internal Revenue Service. Treasury, IRS Provide Guidance on New Tax Benefits for Health Savings Account Participants Under the One Big Beautiful Bill
4
Office of the Law Revision Counsel. 26 U.S. Code 223 – Health Savings Accounts
5
Internal Revenue Service. Instructions for Forms 1099-SA and 5498-SA (12/2026)