Health Insurance After Divorce in Illinois: COBRA, Marketplace, and Other Options

If you're covered under your spouse's employer health plan, your divorce finalizes a "qualifying event" that terminates your coverage. You don't lose insurance the day you file — you lose it when the divorce judgment is entered. That gives you time to plan, but not unlimited time.

Here are your actual options, what each costs, and the deadlines that matter.

COBRA: The 36-Month Bridge

The Consolidated Omnibus Budget Reconciliation Act (COBRA) requires employers with 20 or more employees to offer continuation coverage to ex-spouses for up to 36 months after divorce. Illinois's state mini-COBRA law extends similar protections to employees of smaller employers (those with fewer than 20 employees) for up to 12 months.

How it works. After the divorce judgment is entered, the plan administrator must be notified within 60 days. You then have 60 days from the notification date to elect COBRA coverage. Coverage is retroactive to the date your employer coverage ended, so there's no gap — but you'll owe premiums for the retroactive period.

The cost. COBRA lets you keep the exact same plan, but you pay the full premium (employee + employer share) plus a 2% administrative fee. For a family plan that costs the employer $1,800 per month, you'd pay approximately $1,836 per month. Individual coverage typically runs $600 to $900 per month depending on the plan tier.

That's expensive, but COBRA has one major advantage: no underwriting, no pre-existing condition exclusions, and no waiting period. If you're mid-treatment for a medical condition, COBRA preserves your provider network and plan benefits without interruption.

Negotiate COBRA reimbursement in your settlement. Under Illinois law, health insurance costs can be factored into the spousal maintenance calculation. If you're receiving maintenance, your attorney or mediator can negotiate that your ex-spouse covers COBRA premiums for a defined period (typically 12-24 months) as part of the marital settlement agreement. This is separate from the maintenance formula — it's an additional obligation tied to the specific cost of maintaining coverage.

ACA Marketplace Plans

The Health Insurance Marketplace (healthcare.gov) offers plans with income-based premium subsidies. Divorce is a qualifying life event that triggers a 60-day Special Enrollment Period — you don't have to wait for the annual Open Enrollment window.

When the marketplace beats COBRA. If your post-divorce income qualifies for premium tax credits, a marketplace Silver plan can cost significantly less than COBRA. A single person earning $40,000 might pay $200 to $400 per month for a Silver plan with subsidies, compared to $600 to $900 for COBRA.

When COBRA beats the marketplace. If you have a specialist or surgeon you need to continue seeing, COBRA keeps your existing provider network. Marketplace plans use their own networks, and your current doctors may not participate. If you're mid-treatment, switching networks mid-course can mean starting over with new providers.

Illinois-specific note. Illinois uses the federal marketplace (healthcare.gov). The state expanded Medicaid under the ACA, so individuals earning up to 138% of the federal poverty level ($20,783 for a single person in 2026) qualify for Medicaid at no cost. If your income drops significantly post-divorce, check Medicaid eligibility before paying for COBRA.

Employer Coverage Through Your Own Job

If you work and your employer offers health insurance, divorce is a qualifying event that lets you enroll in your own employer's plan outside the normal enrollment window. This is often the cheapest option — employer-sponsored plans average $600 to $700 per month for family coverage, but employers typically pay 70-80% of the premium.

If you've been out of the workforce during the marriage, re-entering employment with benefits becomes a practical priority. Factor the timeline into your settlement negotiations: if you'll need 6-12 months to find employment with benefits, COBRA or maintenance-funded marketplace coverage bridges the gap.

Children's Coverage

Children's health insurance is handled separately from spousal coverage in Illinois divorce. Under 750 ILCS 5/505.2, the court can order either or both parents to maintain health insurance for minor children. The cost of children's health insurance premiums is factored into the child support calculation under the Illinois Income Shares model.

If neither parent has employer coverage available, children may qualify for the Illinois All Kids program, which provides comprehensive coverage regardless of immigration status, with premiums scaled to family income.

Planning Your Coverage Transition

The worst outcome is a coverage gap — a period without insurance that exposes you to catastrophic medical costs. Start planning before the divorce is final:

1. Get a copy of your current plan documents (Summary of Benefits and Coverage) so you know exactly what you're comparing against
2. Run the numbers on COBRA vs. marketplace using healthcare.gov's subsidy calculator with your projected post-divorce income
3. Check your employer's enrollment rules if you have your own job with benefits
4. Negotiate insurance costs in your settlement — whether as a COBRA reimbursement clause or as a factor in maintenance

The Illinois Divorce Financial Split Guide includes a post-divorce expense worksheet that factors in health insurance costs alongside housing, transportation, and other budget items — so you can model your actual financial picture before agreeing to a settlement.

See more Illinois guides →