You can always shop for health coverage in the Marketplace. However, your employer-provided coverage is considered “affordable.” That’s because the affordability of employer sponsored coverage is only measured with respect to self-only coverage. Because your employer pays the entire cost of the employee-only coverage, you are technically considered to have affordable coverage (even though practically speaking, it was unaffordable to you.) As a result, neither you nor your spouse and children are eligible to apply for premium tax credits in the Marketplace. Sometimes this rule is referred to as “the family glitch.”
If you find yourself in this situation, depending on your family income, your children might qualify for the Children’s Health Insurance Program in your state. Check with your state Marketplace to find out if your children may be eligible for CHIP.