How to Handle Form 1095-A When Married Filing Separately

When spouses file separate returns after being covered together on a Marketplace plan, Form 1095-A for married filing separately gets split 50/50 between the two returns, and in most cases both spouses lose eligibility for the premium tax credit and must repay their share of the advance payments. Federal law requires married taxpayers to file jointly to claim the credit, so choosing Married Filing Separately (MFS) usually means paying back every dollar of advance premium tax credit (APTC) the government sent to your insurer. A few narrow exceptions preserve the credit, and for tax year 2026 the repayment caps that used to soften this blow are gone.

The Mandatory 50/50 Allocation

Your Form 1095-A reports three monthly figures: enrollment premiums in Column A, the second-lowest-cost silver plan premium in Column B, and APTC paid in Column C.¹ When you file separately, those figures have to be divided between the two returns, and the IRS does not let you negotiate the split. Married couples filing separately use a fixed 50/50 allocation. Each spouse files their own Form 8962 and reports their half in Part IV.

How you fill out the form depends on whether you qualify for an exception that preserves credit eligibility.

If You Qualify for an Exception

Allocate 50% of the enrollment premiums and 50% of the APTC to each spouse. You do not allocate Column B. Instead, each spouse looks up the applicable silver plan premium for their own coverage family and enters that figure directly on their Form 8962. In Part IV, enter “0.50” in the columns for enrollment premiums and APTC allocation.²

If You Do Not Qualify for an Exception

You only allocate the APTC. Enter “0.50” in the APTC allocation column of Part IV and leave the enrollment premium and silver plan columns blank, because you are not calculating a credit. Form 8962 will simply compute your repayment based on your 50% share of the advance payments.²

Both spouses file their own Form 8962, and the IRS cross-checks the returns. The allocations must be consistent: if one spouse reports 50% of the APTC, the other spouse’s return has to reflect the remaining 50%.

Can You Still Claim the Credit Filing Separately?

The premium tax credit is only available to “applicable taxpayers,” and Section 36B(c)(1)(C) of the Internal Revenue Code treats a married person as an applicable taxpayer only if they file jointly.³ Four routes let you keep the credit without a joint return.

Head of Household

Check this first. Under IRC Section 7703(b), a married person who meets three tests is treated as “not married” for tax purposes, which unlocks both Head of Household status and full premium tax credit eligibility.⁴ You must maintain a home that is the principal residence of a dependent child for more than half the year, pay more than half the cost of keeping up that home, and have lived apart from your spouse for the last six months of the tax year. IRS Publication 974 lists this as “Exception 1” for premium tax credit purposes.⁵ If your situation fits, you file as Head of Household rather than MFS and claim the full credit against your own household income.

Domestic Abuse or Spousal Abandonment

If Head of Household is not available, Treasury Regulation Section 1.36B-2(b)(2)(ii) provides a separate exception that lets you file MFS and still claim the credit.⁶ You must be living apart from your spouse at the time you file, you must be unable to file jointly because you are a victim of domestic abuse or your spouse has abandoned you, and you must certify your status by checking the box at the top of Form 8962.

Domestic abuse is defined broadly and includes physical, psychological, sexual, and emotional abuse. The living-apart test is measured at filing, not across the whole tax year, so leaving an abusive situation partway through the year and living separately when you prepare the return can still qualify you.⁷ There is a ceiling: if you claimed this exception for each of the three preceding tax years, you cannot use it again in the current year.⁶

Legal Separation

A decree of divorce or separate maintenance takes you out of the MFS problem entirely. Under IRC Section 7703(a)(2), someone legally separated under a court decree is not considered married for tax purposes, so you file as Single or Head of Household and the joint-filing requirement does not apply.⁴ An informal or voluntary separation with no court order does not count.

Nonresident Alien Spouse

Federal law generally bars a joint return when either spouse is a nonresident alien during the tax year. Your spouse can elect to be treated as a U.S. resident under IRC Section 6013(g), which allows a joint return and preserves credit eligibility. If your spouse will not make that election, you are left with MFS and no special exception for premium tax credit purposes.

2026 Repayment: The Caps Are Gone

Filing MFS without an exception has always meant repaying your allocated share of APTC. What changed for 2026 is how much of it you actually owe.

Through tax year 2025, the IRS applied statutory caps that limited excess APTC repayment for filers under 400% of the federal poverty line, scaled by income. Starting with tax year 2026, Congress removed those caps. The limiting language in Section 36B(f)(2) was struck by Pub. L. 119-21, effective for taxable years beginning after December 31, 2025.³ If your allocated share of APTC is $3,000, you repay $3,000. If it is $8,000, you repay $8,000. The IRS has confirmed that for 2026 and beyond, the full difference between advance payments and your allowable credit is added to your tax bill.⁸

The same legislation let the Inflation Reduction Act’s enhanced credits expire after 2025. For 2026, eligibility returns to the original income band of 100% to 400% of the federal poverty line. Household income above 400% of the poverty line means no credit at all and full repayment of every advance payment. Between eliminated caps and narrower eligibility, the cost of filing MFS in 2026 is materially higher than in recent years.⁷

You Still Have To File Form 8962

Every taxpayer who received APTC must file Form 8962 with their return, even when the full amount is owed back. Skipping the form does not avoid the repayment; it creates a second problem.

The IRS will send Letter 12C asking for the missing form. Respond to the letter with a copy of your Form 1095-A and a completed Form 8962. Do not file an amended return on Form 1040-X.⁹

The bigger cost is forward-looking. Failing to reconcile your APTC by filing Form 8962 makes you ineligible for advance premium tax credits and cost-sharing reductions for the following calendar year.⁹ Your Marketplace premiums can jump to full price until you file the missing reconciliation. For someone already carrying a repayment bill, losing next year’s subsidies on top of it is a serious hit.

If You Got Married During the Year, Run the Numbers Jointly First

Couples who married partway through 2026 have a specific reason to consider a joint return before defaulting to MFS. The alternative calculation for year of marriage in Form 8962 Part V can reduce the amount of excess APTC you repay, but only if you file jointly.¹⁰

To qualify, both spouses must have been unmarried on January 1, married by December 31, and filing jointly. Someone in the tax family must have been enrolled in a Marketplace plan and received APTC before the first full month of marriage, and the advance payments must exceed the actual credit. The calculation recomputes the required contribution for the pre-marriage months using each spouse’s individual income rather than combined household income. When one spouse had low income before the wedding, that recomputation can shrink the repayment substantially. If one of you carried a subsidized Marketplace plan before the wedding, work the joint return with the alternative calculation before settling on MFS.

1
HealthCare.gov. How to Reconcile Your Premium Tax Credit
2
Internal Revenue Service. 2025 Instructions for Form 8962
3
Office of the Law Revision Counsel. 26 USC 36B – Refundable Credit for Coverage Under a Qualified Health Plan
4
Office of the Law Revision Counsel. 26 USC 7703 – Determination of Marital Status
5
Internal Revenue Service. Publication 974 – Premium Tax Credit
6
eCFR. 26 CFR 1.36B-2 – Eligibility for Premium Tax Credit
7
Internal Revenue Service. FS-2025-10 – Updates to Questions and Answers About the Premium Tax Credit
8
FAQs for Marketplace Agents and Brokers. Are There Limits to How Much Excess Advance Payments of the Premium Tax Credit Consumers Must Pay Back
9
Internal Revenue Service. Reconciling Your Advance Payments of the Premium Tax Credit
10
Internal Revenue Service. Instructions for Form 8962 – 2025