Health Insurance After Divorce: COBRA, ACA, and Employer Plans

Divorce triggers a coverage cliff most people don't see coming. Coverage on a spouse's employer plan typically ends on the last day of the month the divorce is finalized — or sometimes the same day. You have 60 days to elect COBRA from the date you receive notice, and 60 days from coverage loss to enroll in the ACA Marketplace. Miss those windows and your options narrow sharply.

Option 1: COBRA continuation coverage

COBRA (Consolidated Omnibus Budget Reconciliation Act) gives you the right to continue your spouse's employer group health plan after divorce.¹ The key features for divorce:

• Duration: 36 months. Divorce is a COBRA qualifying event that entitles a spouse — and covered dependent children — to up to 36 months of continuation. This is longer than the 18-month window that applies to job loss.
• Cost: 102% of the plan's full premium. "Full premium" means what the employee was paying plus what the employer was subsidizing, plus a 2% administrative fee. The employer subsidy disappears.² If your spouse's employer was paying $1,400/mo toward a $1,600/mo family plan, your COBRA premium is $1,600 × 1.02 = $1,632/mo — not $200/mo.
• Election window: 60 days. You have 60 days from the date you receive the COBRA election notice to decide. If you elect on day 59, coverage is retroactive to day 1 — meaning no coverage gap, but you owe all back premiums.
• First payment deadline: 45 days after election. Once you elect, you have 45 days to make the first payment covering all retroactive months. If you don't pay, coverage is treated as never having been elected.
• Same network, same doctors. COBRA is continuation of the exact same plan — no new underwriting, no network disruption. This matters if you're mid-treatment or have established care relationships.

What COBRA actually costs

Most people are surprised by the full premium once the employer's contribution is removed. Rough benchmarks (national averages vary widely by employer and plan type):

• Individual-only coverage: roughly $400–$900/month at 102% of employer plan cost
• Individual + spouse (before divorce, now just you): roughly $600–$1,100/month
• Family coverage: roughly $1,300–$2,200/month

These are directional. Call the plan administrator or HR to get the exact premium before you decide — it should be in the COBRA election notice itself.

Option 2: your own employer's plan

If you have a job with employer-sponsored coverage and were previously on a spouse's plan, divorce is a qualifying life event that opens a special enrollment period on your own employer's plan.³

• Window: 30–60 days from the qualifying event. Federal law (HIPAA) guarantees at least 30 days; many employers allow 60. Check your Summary Plan Description or contact HR immediately.
• Usually the best financial option. Employer-sponsored plans typically share 50–80% of the premium with employees. If you're eligible, enrolling in your own employer's plan almost always beats COBRA on cost.
• If your ex's plan covers your children: Divorce decrees routinely require both parents to maintain health coverage for dependents. Confirm who covers the children in the settlement, and whether your employer plan covers dependents at an acceptable cost versus a children-only COBRA election on your ex's plan.

Option 3: ACA Marketplace

Divorce or loss of health coverage due to divorce qualifies you for a Special Enrollment Period (SEP) on the ACA Marketplace — you don't have to wait for open enrollment.⁴

• Window: 60 days from coverage loss. Enroll at HealthCare.gov or your state marketplace within 60 days of the date your coverage ends.
• Premium tax credits (PTCs) for eligible incomes. If your modified AGI falls between 100% and 400% of the federal poverty level (~$15,650 to $62,600 for a single adult in 2026), you may qualify for premium tax credits that reduce your monthly premium.⁵
• Important 2026 change: enhanced PTCs expired. The enhanced Affordable Care Act subsidies that were available from 2021–2025 (via the American Rescue Plan and its extensions) expired at the end of 2025. Average marketplace premiums for mid-income enrollees are substantially higher in 2026 than in prior years. Do not assume 2025 premium estimates are accurate for a 2026 enrollment.⁵
• 2026 repayment change. Under the 2025 budget reconciliation law, repayment caps on excess premium tax credits were eliminated for plan year 2026. If your income turns out higher than you estimated at enrollment, you owe the full excess credit back when you file your taxes — not just a capped amount. This is material if your divorce-year income is uncertain (home sale proceeds, QDRO distributions, etc.).
• When ACA makes sense despite higher 2026 premiums: (a) if you have no employer plan, (b) if your income qualifies for PTCs, (c) if you prefer not to lock into a 36-month COBRA commitment while you evaluate your next employer situation.

Side-by-side comparison

Critical deadlines

If you're 60 or older: the IRMAA trap

This section applies if Medicare is close or already here.

If you're on Medicare, divorce doesn't disrupt your Medicare coverage. But it can trigger unexpected premium increases two years later. Medicare Part B and Part D premiums include an income-related surcharge (IRMAA) based on your MAGI from two years prior. In 2026, the base Part B premium is $202.90/month; IRMAA surcharges start at modified AGI above $109,000 for a single filer.⁶

The trap: your divorce year may produce unusual income spikes — home sale proceeds, QDRO distributions, IRA transfers, business-interest buyouts. Even if these are non-recurring, Medicare looks at that year's MAGI two years later. If your divorce-year income pushes you into an IRMAA tier, you'll see Part B surcharges of $629/month or more per person.

Remedy: SSA Form SSA-44 lets you request a reduction in IRMAA based on a "life-changing event" — divorce qualifies. File SSA-44 the year after the income spike using projected current-year income. SSA will recalculate. See the Divorce After 50 guide for the full IRMAA planning framework.

Health insurance and your overall post-divorce budget

Health insurance is often an underestimated line item in divorce financial planning. If you're moving from family COBRA at $1,800/month to individual coverage, that's a $21,600/year swing — more than most people's annual car payment. A CDFA-credentialed financial advisor will include healthcare costs in your post-divorce income and expense model, alongside housing, tax withholding changes, and retirement savings rates.

Common oversights:

• Not accounting for the full COBRA premium when modeling post-divorce monthly cash flow
• Assuming ACA subsidies will cover a large portion of costs (the enhanced subsidies expired end of 2025)
• Missing the employer plan enrollment window by a few days and having to wait for open enrollment
• Triggering IRMAA two years after divorce without planning for the appeal

Sources

1. U.S. Department of Labor — COBRA Continuation Coverage (ERISA §§ 601–608 / IRC § 4980B): divorce as qualifying event, 36-month max duration for spouses.
2. DOL — An Employee's Guide to Health Benefits Under COBRA: 102% of plan cost (employee + employer share + 2% admin), 60-day election window, 45-day payment deadline.
3. HealthCare.gov — Special Enrollment Periods: divorce and loss of coverage as qualifying life events, 60-day SEP window.
4. HealthCare.gov — Special Enrollment Period qualifying events list, including divorce/legal separation.
5. KFF — 8 Things to Watch for the 2026 ACA Open Enrollment Period: enhanced premium tax credit expiration, 2026 premium increases, and repayment cap elimination.
6. CMS — 2026 Medicare Parts A & B Premiums and Deductibles: Part B base premium $202.90/month, annual deductible $283; IRMAA surcharges for higher-income enrollees.

COBRA rules governed by ERISA §§ 601–608 and IRC § 4980B. ACA marketplace rules and premium amounts are subject to annual regulatory changes — verify at HealthCare.gov for your state and plan year. Medicare premiums verified against CMS 2026 fact sheet (October 2025). Healthcare costs and IRMAA thresholds current as of May 2026.