Health insurance after divorce, to Medicare
Key numbers
- Divorce or legal separation is a COBRA qualifying event, and for a spouse the maximum continuation period is 36 months (source: US Department of Labor, An Employee’s Guide to Health Benefits Under COBRA).
- A plan can charge up to 102% of the full cost of the coverage under COBRA, which is the whole premium plus 2% for administration (source: US Department of Labor).
- Your plan’s deadline to notify it of a divorce cannot be shorter than 60 days, and the plan must give you at least 60 days to decide whether to elect COBRA (source: US Department of Labor).
- Losing coverage opens a 60-day special enrollment period on the ACA marketplace, and savings there are based on your income estimate for the coverage year rather than last year (source: HealthCare.gov, HealthCare.gov).
For a lot of women divorcing in their fifties, this is the bill nobody warned them about. You have been on your husband’s employer plan for twenty years. The payroll deduction was small because the employer paid most of it, and you never saw the real price. The divorce ends that coverage, and Medicare does not start until 65 (Medicare.gov). Everything in between is a bridge you build and pay for. There are two main ones. Here is how each works, what each costs, and the deadlines that decide whether you get to choose at all.
Bridge 1: COBRA continuation of the same plan
COBRA lets you keep the exact plan you already have, same network, same doctors, same deductible progress for the year. The Department of Labor lists divorce or legal separation among the qualifying events, and for a spouse or dependent child the maximum continuation period is 36 months (DOL employee guide). Job loss, by comparison, carries 18 months.
The price is the catch. The plan can charge up to 102% of the cost to the plan, and the DOL is explicit that the calculation can include what you paid plus what your employer paid plus 2% for administrative costs (DOL). The coverage did not change, the employer subsidy vanished.
Illustrative arithmetic, not a quote and not from any calculator of ours: if the full cost of your coverage to the plan is $700 a month and your payroll deduction was $150, COBRA at 102% is about $714 a month. Same plan, nearly five times the bill you were used to seeing. Ask HR for the actual full cost figure so you can do this with your own number.
The deadline that catches people. For divorce, the employer does not notify the plan, you do. The plan sets a time limit for that notice, and the DOL says it cannot be shorter than 60 days, counted from the latest of the divorce date, the date you lose or would lose coverage, or the date you were told of the duty to notify. Separately, once the election notice arrives, the plan must give you at least 60 days to decide. Two 60-day clocks, and your own plan document sets the exact rule.
Bridge 2: an ACA marketplace plan
The marketplace at HealthCare.gov, or your state’s own exchange, is where most people in this situation end up, and it is often the cheaper bridge by a wide margin. You normally can only enroll during open enrollment, but a qualifying life event opens a special enrollment period. HealthCare.gov is precise about what counts, and the precision matters: it lists getting divorced or legally separated and losing health insurance, and states that divorce without losing coverage does not qualify you. Losing coverage through a family member’s employer plan is itself a qualifying event, and the window is 60 days (HealthCare.gov). For most divorcing women, the loss of the spousal plan is the event that opens the door.
The part that changes the math is the premium tax credit. HealthCare.gov says it directly: savings are based on your income estimate for the year you want coverage, not last year (HealthCare.gov). That is the whole point for someone who has just divorced. The household income that used to include your husband’s salary is now only yours. A lower income estimate generally means a larger credit, measured on this year’s expected number rather than the joint return you filed last spring. It is also why comparing the two on sticker price gives the wrong answer: COBRA has one price, while a marketplace plan has a list price and a price after the credit, and only the second is what you pay.
COBRA versus marketplace, side by side
| COBRA | ACA marketplace plan | |
|---|---|---|
| What you pay | Up to 102% of the full cost of the plan, meaning your old payroll deduction plus the employer’s share plus 2% admin. | The plan premium, reduced by a premium tax credit that depends on your estimated income for the coverage year. |
| How long it lasts | Up to 36 months after a divorce or legal separation. | As long as you keep paying and remain eligible, renewing each year to 65 and beyond. |
| Enrollment window | You notify the plan (the limit cannot be under 60 days), then get at least 60 days from the election notice to decide. | 60 days around the loss of coverage. Voluntarily dropping COBRA later does not reopen it. |
| The coverage itself | Identical plan, identical network, and any deductible you have already met this year keeps counting. | A new plan with its own network and its own deductible, which restarts. |
| When it usually wins | Mid-treatment, attached to a specialist in that network, already met a large deductible, or you only need a few months. | Most other cases, especially when your own income after the divorce is well below the former household income. |
Why this belongs in the settlement conversation
Whatever the bridge costs, it is a monthly number for every year that separates you from 65, and it belongs in the budget discussion next to the mortgage rather than being discovered afterwards. Our Retirement Runway Calculator lets you put that premium into the spending line and see what it does to how long your money lasts.
It also interacts with the house decision. A premium of several hundred dollars a month is exactly the kind of new bill that turns a just-about-affordable mortgage into an unaffordable one. Read keeping the house at 55 next, and compare the house against the retirement money after tax with the House vs. 401(k) Comparison.
Frequently asked questions
Can I stay on my ex-husband’s employer health plan after the divorce?
Not as a spouse. Once the divorce is final you are no longer his dependent under the plan, so that coverage ends. You can elect COBRA continuation of the same plan, which the Department of Labor lists divorce as a qualifying event for, or buy your own plan through the ACA marketplace.
How long does COBRA last after a divorce?
For a spouse or dependent child, divorce or legal separation carries a maximum continuation period of 36 months, according to the Department of Labor’s employee guide to COBRA. That is longer than the 18 months that applies to job loss, but it only reaches Medicare at 65 if the divorce happens after about 62.
Do I have to tell the plan about the divorce, and by when?
Yes, and this is the deadline people miss. For divorce, you rather than the employer must notify the plan. The plan sets the time limit, but the Department of Labor says it cannot be shorter than 60 days. Check your plan’s summary for its exact rule.
Why is COBRA so expensive when the coverage is identical?
Because you now pay the whole cost. While married, the employer paid a large share and your payroll deduction was only the rest. Under COBRA the plan can charge up to 102% of the full cost, meaning the combined employer and employee cost plus 2% for administration. The subsidy disappeared, not the coverage.
Does divorce let me buy a marketplace plan outside open enrollment?
It does when it causes you to lose coverage. HealthCare.gov is specific: divorce that leaves you without health insurance opens a special enrollment period, while divorce without losing coverage does not. Losing coverage through a family member’s employer plan is itself a qualifying event, with a 60-day window.
What happens at 65?
Medicare is health insurance for people 65 or older who meet the citizenship or residency requirements, so 65 is the finish line. Everything before it is a bridge, and the question is which bridge costs less.
Sources: US Department of Labor, An Employee’s Guide to Health Benefits Under COBRA · US Department of Labor, COBRA continuation coverage · HealthCare.gov, special enrollment periods · HealthCare.gov, qualifying life event · HealthCare.gov, COBRA and the Marketplace · HealthCare.gov, lower costs · Medicare.gov, Get started with Medicare. All fetched and checked September 2026. Plans differ, and your own plan document controls its deadlines. This page explains how the rules work and is not legal, tax, or insurance advice for your situation.
Next: see how long your money lasts →