How to Qualify for the ACA Family Glitch Fix in 2026: The 9.96% Family-Coverage Affordability Test, Splitting Coverage, and Proving It on HealthCare.gov

For nearly a decade after the Affordable Care Act took effect, one of its most frustrating quirks trapped millions of working families. If an employer offered an employee "affordable" self-only health coverage, the entire family was locked out of marketplace premium tax credits — even when family coverage through the same employer cost as much as a car payment. That trap was called the "family glitch," and Treasury and the IRS finally fixed it in a final rule that took effect January 1, 2023. Three plan years later, in 2026, the fix is still one of the most useful and least understood tools in the ACA.

Here is the short version. If your employer's family coverage costs more than 9.96% of your household income in 2026, your spouse and children can shop the marketplace with premium tax credits while you stay on the employer plan. You do not have to drop employer coverage. You do not have to move the whole family. You just split coverage: the employee keeps the cheap self-only employer plan, and the family members go to the marketplace where their premiums are subsidized. Done correctly, split coverage saves a household two thousand to twelve thousand dollars a year.

The original ACA statute says employer coverage is "affordable" if the employee's required contribution for the lowest-cost plan does not exceed a threshold percentage of household income (about 9.5% originally, indexed each year). If employer coverage is affordable, no one in the household can receive marketplace premium tax credits. That test worked as intended for the employee. The problem was that Treasury regulations from 2013 measured affordability only against the self-only premium, even when deciding eligibility for the employee's spouse and children.

Result: an employee whose self-only premium was 4% of income was considered to have "affordable" coverage — and so were spouses and children — even if the family tier of the same plan cost 20% or 25% of household income. Roughly 5 million people were caught in this trap, most of them working-class families in which one parent had an employer plan that priced family members off the plan.

The 2022 final rule (Treasury Decision 9968, effective January 1, 2023) kept the employee test the same but created a separate affordability test for family members based on the cost of family coverage. If family coverage costs more than the threshold percentage of household income (9.96% for plan years starting in 2026), the family members are treated as if employer coverage is unaffordable and can qualify for marketplace subsidies. The employee, still tested against self-only, usually remains on the employer plan.

The families most likely to qualify share three traits. Run through the checklist and see how many fit your household.

1. The employee has family coverage available but rarely uses it. Many employers offer family coverage as an option but pass through most of the family cost to the employee. If your HR portal shows a family premium that's four or five times your self-only premium, this test is worth running.
2. Household income is between about 150% and 400% of the Federal Poverty Level. For a family of four in the 48 contiguous states in 2026, that's about $48,750 to $130,000. Below 150%, marketplace subsidies get very generous and Medicaid is often available for the kids instead. Above 400%, the pre-2021 subsidy cliff is back in force for 2026 and blocks any subsidy at all until income drops back below the cliff.
3. The employer's family premium exceeds 9.96% of household income. This is the mechanical test. Example: household income $85,000, employer family premium $12,000/year (approximately $1,000/month) — that's 14.1% of income, well above the threshold. The family qualifies.

The most common family-glitch-fix arrangement is a split household. Picture a family of four: two working parents and two kids under 18. Parent A works for a company that offers reasonable self-only coverage ($2,400/year, or 3% of a $80,000 household income) but expensive family coverage ($16,800/year, or 21% of income). Parent B works part-time without benefits.

Before the fix, the whole family was locked out of subsidies because Parent A's self-only coverage was "affordable." After the fix, only Parent A is locked out. Parent B and both kids can shop marketplace subsidized silver plans. The household ends up looking like this:

Compare that to the pre-fix world where the whole family was on the employer plan at $16,800/year with no subsidy option. The fix saves this household roughly $11,000 per year and doesn't require Parent A to change jobs, drop coverage, or take any risk with their own care.

When you fill out the marketplace application on HealthCare.gov (or your state exchange), you are asked whether any family member has access to employer coverage and, if so, what the employee's contribution for the lowest-cost family plan would be. This is the number the marketplace divides by household income to run the 9.96% test. The exact figure is on the employer's benefits summary — usually shown as monthly or annual employee contribution for "family" or "employee + spouse + children" tier.

Getting the right number is worth ten minutes of effort:

1. Log into your employer benefits portal. Look for a page labeled "cost of coverage," "benefit tier pricing," or "your contribution." Family tier is the one you want.
2. Confirm it is the lowest-cost family plan. If your employer offers multiple plans (HMO, PPO, HDHP), the marketplace test uses the least expensive plan that provides minimum value. The lowest-cost family premium — usually the HDHP tier — is what feeds the 9.96% test.
3. Ask HR for a written confirmation. A short email from HR quoting the number is enough for the marketplace to accept during eligibility verification. Save it in the same folder as your marketplace paperwork.
4. Include only the employee's share of the family premium. Not the total price the employer pays the insurance carrier. The 9.96% test is against what the employee would actually pay out of pocket for family coverage.

The marketplace calculates the affordability check automatically once you input income and family premium cost. If the family fails the affordability check, family members are moved to the "eligible for premium tax credit" bucket in the application flow and are shown subsidized plan quotes.

Between 2021 and 2025, the American Rescue Plan and Inflation Reduction Act removed the 400% Federal Poverty Level subsidy cliff. That temporary provision expired December 31, 2025. For plan year 2026, the pre-2021 rules are back: household income above 400% of FPL means the marketplace premium tax credit drops to zero. Passing the family-glitch affordability test does not save you from the cliff — the fix opens the marketplace door, and the FPL check decides whether the subsidy on the other side is above zero.

For 2026, using the FPL numbers from the 2025 poverty guidelines that determine 2026 marketplace subsidies, the 400% cliff for a family of four is approximately $128,600. Households close to the line have real options to stay under it:

• Traditional 401(k) or 403(b) contributions lower Modified Adjusted Gross Income dollar for dollar. The 2026 employee contribution limit is $24,500 (approximate; verify with your plan) plus catch-up at age 50 and above.
• Traditional IRA contributions up to $7,500 in 2026 (approximate, subject to income deduction phase-outs).
• HSA contributions are the cleanest lever if you have an HDHP. 2026 family HSA limit is $8,750; self-only limit is $4,400. HSA contributions come off MAGI whether made through payroll or after-tax through a personal HSA.
• Timing income and deductions. If a bonus or Roth conversion would push you over the cliff, delay it into the following year. If you have deductible business expenses on a schedule C, accelerate them.

One spouse's employer offers coverage, the other's does not

Run the family-glitch fix against the spouse whose employer offers family coverage. If the family test fails on affordability, the non-employee spouse and children shop the marketplace. If both spouses' employers offer family coverage, the test uses the cheaper of the two family premiums.

Employer offers only self-only coverage

The family-glitch fix does not apply because there is no family premium to test. Family members were never offered employer coverage, so they can shop the marketplace with subsidies without any affordability calculation.

Employer contributes a flat dollar amount

Some employers make a fixed dollar contribution to any tier of coverage. The family premium test still uses the employee's out-of-pocket cost after the employer contribution is applied. A generous flat contribution can bring family coverage inside the 9.96% threshold and shut down the family-glitch fix; a small flat contribution usually leaves family coverage well above the threshold.

Employer offers HRA or ICHRA

Health Reimbursement Arrangements and Individual Coverage HRAs have their own affordability tests separate from the family-glitch fix. If the employer offers an affordable ICHRA, family members can still shop the marketplace but cannot combine the ICHRA reimbursement with a premium tax credit. Choose one or the other.

Employee is enrolled in an HDHP with an HSA

Family members moving to a marketplace plan does not affect the employee's HSA eligibility. The employee remains HSA-eligible as long as they are enrolled only in an HDHP with no other disqualifying coverage. The self-only HSA contribution limit ($4,400 in 2026) applies unless the employee remains on family HDHP coverage — but with family members moved off, the employee is on self-only HDHP and the self-only limit applies.

Mid-year employer coverage change

If your employer changes family premiums mid-year and family coverage crosses the affordability line, that qualifying change often opens a marketplace Special Enrollment Period. Contact the marketplace within 60 days of the change with documentation from HR.

1. Get the family premium number from HR. Written confirmation of the lowest-cost family tier premium, employee share only.
2. Project household MAGI for the year. Include wages, self-employment income, interest, dividends, tax-exempt bond interest, and Social Security. Subtract HSA contributions, deductible IRA contributions, student loan interest, and 401(k) contributions.
3. Divide family premium by projected MAGI. If the ratio exceeds 9.96%, the family fails affordability and qualifies for the fix.
4. Check the 400% FPL cliff. Confirm household MAGI is below 400% FPL for household size. If close to the cliff, plan pre-tax adjustments to stay under.
5. Open a marketplace application for the family members only. On HealthCare.gov, indicate the employee has other affordable coverage and does not need marketplace enrollment. Enroll the spouse and children as household members seeking coverage.
6. Compare marketplace plan networks against the family's providers. Silver plans generally give the best price-to-cost-sharing tradeoff, and cost-sharing reductions kick in below 250% of FPL.
7. Enroll and set up automatic payment. Marketplace coverage begins the first of the month after enrollment if you enroll by the last day of the month.
8. File Form 8962 with next year's tax return. The marketplace mails Form 1095-A in January showing the total premium tax credits received during the year. Form 8962 reconciles that against actual income and either refunds you (if income came in lower) or requires repayment up to a cap (if income came in higher).

Two clarifications to prevent surprises. First, the family-glitch fix does not change the individual mandate. There is no federal individual mandate penalty in 2026, though a handful of states (California, Massachusetts, New Jersey, Rhode Island, Vermont, and D.C.) have their own coverage requirements. Second, the fix does not force the marketplace to give family members a subsidy — it just makes them eligible to be scored. Whether the subsidy is $50/month or $800/month depends on the family's income relative to the second-lowest-cost silver plan in the local area.

The fix also does not automatically apply. Some households qualify but never learn about it because they never fill out a marketplace application while the employee is on employer coverage. If you have not tested for eligibility since 2023, run the numbers now — the 2022 rule is permanent and does not sunset.

The family-glitch fix is the ACA feature most likely to be leaving money on your kitchen table. If your employer offers reasonable self-only coverage but expensive family coverage, run the 9.96% test today. A split-coverage arrangement can save a working family thousands of dollars a year without asking the employed spouse to change jobs, drop coverage, or take on network risk with their own care. The paperwork is a marketplace application plus a copy of the employer benefits page — an afternoon of work for one of the largest annual savings the tax code lets a middle-income family capture.

Pay attention to two things in 2026 specifically: the 400% FPL cliff is back, and it is unforgiving. And the affordability threshold is 9.96% this year — not the 8.5% cap that applied under the enhanced credits. Both change the math slightly compared to 2024 and 2025. Rerun your numbers even if you qualified last year.