If you have a job offer of health insurance and you are also eyeing the ACA marketplace, the two interact in ways that decide whether you save money or leave money on the table. The rules hinge on two IRS tests: affordability and minimum value.
The core rule
If your employer offers coverage that is both affordable and meets minimum value, you generally cannot get a premium tax credit on a marketplace plan. You can still buy a marketplace plan, but you would pay full price, which is almost always worse than the subsidized employer plan.
If the employer offer fails either test, you may qualify for marketplace subsidies instead.
So the whole decision starts with checking those two tests.
The affordability test
The IRS sets a percentage of household income each year. If the premium for employee-only coverage on your employer lowest-cost plan that meets minimum value is at or below that percentage of your household income, the offer is affordable.
Two things to note:
- The test uses the employee-only premium, even if you are buying family coverage. This is the part that used to create the family glitch.
- The percentage moves every year, so check the current figure on the IRS or HealthCare.gov before you assume.
The minimum value test
A plan meets minimum value if it pays at least 60 percent of total allowed costs and provides substantial coverage of hospital and physician services. Almost all real employer medical plans meet minimum value. Skinny plans and some limited products may not.
The family glitch fix
For years, the affordability test looked only at the cost to cover the employee, not the family. That meant a worker could have affordable self-only coverage but unaffordable family coverage, and the family still could not get marketplace subsidies. That was the family glitch.
Starting in 2023, the rule changed. Affordability for family members is now measured against the cost to cover the whole family. Some families who were previously locked out of subsidies became eligible. If you have a family and your employer family premium is steep, it is worth re-checking your marketplace eligibility under the current rule.
How to compare the real cost
Once you know whether you qualify for subsidies, compare the total annual cost of each path.
For the employer plan:
- Annual premium (your share, after any employer contribution)
- Plus expected out-of-pocket spending given the deductible, copays, and out-of-pocket maximum
For the marketplace plan (only competitive if you qualify for a subsidy):
- Annual premium after the premium tax credit
- Plus expected out-of-pocket spending
Then compare networks. Employer plans and marketplace plans often use different provider networks. If your doctors are only in one, that can decide it.
A worked example. A single worker is offered an employer plan where the employee-only premium is affordable under the IRS test. They check the marketplace and find they do not qualify for a subsidy because the offer is affordable. The employer plan, with its employer contribution, costs them far less than a full-price marketplace plan. The employer plan wins easily.
A different example. A married worker with two kids has an affordable self-only employer premium but a very expensive family premium. Under the post-2023 family-glitch fix, the family is measured against the family cost. The family premium is unaffordable, so the spouse and kids may qualify for marketplace subsidies. The worker stays on the employer plan; the family goes to the subsidized marketplace. This split can save thousands.
When dropping employer coverage backfires
Voluntarily dropping affordable employer coverage usually does two harmful things:
- It does not trigger a Special Enrollment Period on the marketplace, so you may have to wait for Open Enrollment.
- It does not make you eligible for a premium tax credit, because the affordable offer still counts against you.
So dropping a good employer plan to chase a marketplace plan rarely works out. The marketplace becomes the better option mainly when the employer offer is genuinely unaffordable or fails minimum value, or when you lose the job (which is a different situation; see our COBRA vs marketplace guide).
Special cases
Part-time or variable hours. If your hours drop below the threshold for benefit eligibility, you may lose the employer offer and gain marketplace eligibility.
Two working spouses. Compare each employer offer plus the marketplace. Sometimes the cheapest setup is each spouse on their own employer plan, or one spouse plus kids on one plan.
Self-employed with a side W-2 job. The W-2 job offer, if affordable, can block subsidies on your self-employment marketplace plan. See our self-employed coverage guide.
What to do next
Ask your HR or benefits team for the employee-only premium of the lowest-cost plan that meets minimum value. That is the number the affordability test uses.
Run the HealthCare.gov estimator with your household income to see whether you qualify for a subsidy given that employer offer.
Compare total annual cost and networks for each realistic path.
For related reading, see premium tax credit income and how to compare health insurance plans.
Sources
Frequently asked questions
Can I get a marketplace subsidy if my job offers insurance?
Only if the job-based offer is not considered affordable or does not meet minimum value under IRS rules. If your employer offer is affordable and meets minimum value, you generally cannot get a premium tax credit on a marketplace plan.
What does affordable mean for employer coverage?
The IRS sets a percentage of household income each year. If the employee-only premium for the lowest-cost plan that meets minimum value is at or below that percentage of your household income, the offer is affordable. The percentage changes annually.
Does the family glitch still apply?
A rule change starting in 2023 fixed the so-called family glitch. Affordability for family members is now based on the cost to cover the family, not just the employee. This opened marketplace subsidies to some families who were previously locked out. Confirm current rules.
Can I drop employer coverage to get a marketplace plan?
You can, but voluntarily dropping affordable employer coverage usually means you will not qualify for a premium tax credit, and it may not trigger a Special Enrollment Period. Think carefully before dropping a job plan.
