What happens to my health insurance in a divorce?
If you are covered through your spouse's employer plan, the divorce ends that coverage, and the deadlines that follow are among the least forgiving in the whole process. During the case you generally stay covered. The children stay covered regardless. Everything else needs a plan.
During the case: can my spouse cancel my insurance?
Mostly no, and in about a third of states a standing court order may already forbid it. Roughly fifteen states impose automatic orders when a case begins, and many of those freeze insurance and beneficiary changes until it ends. They bind the spouse who filed from the day of filing and the other spouse from the day they are served, so read the actual order that came with the papers rather than assuming either way. Elsewhere, a court can order coverage maintained as part of temporary orders, and judges respond badly to a spouse who stripped the other's health coverage mid-case. If it happens to you, tell your attorney the same week: this is exactly what temporary orders exist for.
If coverage is being threatened as pressure, that is financial control, and it often travels with other kinds. The safety resources page has the numbers.
At the decree: the part with the clock
Your eligibility as a spouse ends with the marriage. Federal benefits rules treat divorce as the event that removes an ex from employee coverage, and a plan will not knowingly carry an ineligible ex-spouse. Quietly leaving an ex on the plan is not a workaround: claims paid for an ineligible person can be denied or clawed back later.
COBRA can continue the same coverage for up to 36 months at up to 102% of the full premium, but only if the employer has 20 or more employees, and only if you notify the plan administrator yourself. The plan does not find out on its own, nobody does this for you, and missing that notice forfeits the right permanently. Send it the week the decree enters. And if you think you are already past sixty days, send it anyway: the clock runs from the latest of three dates, the divorce, the day you actually lose the coverage, and the day the plan told you this notice was your job, and plenty of people were never told at all. Only after notice does your separate 60-day election window open.
If your spouse dropped you from the plan during the separation, you did not lose this. Coverage taken away in anticipation of the divorce is disregarded when the plan works out whether the divorce is what cost you your coverage. You are still entitled to elect COBRA at the decree, and that same notice is what protects it.
The ACA marketplace opens for 60 days when you lose coverage, not when you divorce, and it also opens for the 60 days before a loss you already know is coming. Use that earlier window if you can: marketplace coverage generally starts the first of the following month, so enrolling before the old plan ends is what keeps you from spending a month uninsured. Canceling COBRA partway through does not reopen it. Price COBRA against a marketplace plan before electing either, and treat it as a one-time choice.
Your own employer's plan must give you at least 30 days to enroll after losing other coverage, and divorce lets your spouse remove only you from their election, not the children.
The children's coverage does not change
Divorce does not remove children from either parent's plan. Which parent carries them becomes a term of the support order, and it is federally enforced: the state child support agency sends the employer a National Medical Support Notice that requires enrolling the children and withholding the premiums from the obligated parent's pay. Two things before you rely on that. The notice comes from the agency, so if your order is a private one you may need to open a case with the agency before this route is available at all. And if the premium would push the withholding past the legal limit on what can be taken from a paycheck, the employer stops and tells the agency instead of enrolling, which is why it is worth naming CHIP or a marketplace plan as the fallback rather than leaving the children uncovered while enforcement runs. Put the children's coverage, and who pays uncovered medical costs, in the decree explicitly.
If your spouse is or was in the military
TRICARE has its own rules, and two are worth knowing by name: the 20/20/20 rule can preserve full coverage for a former spouse after a long overlap of marriage and service, and CHCBP is the military's COBRA equivalent for everyone who falls short of it.
The practical sequence
Get the actual COBRA premium from the benefits office during the settlement, not after, because who pays it is negotiable if somebody raises it. Compare the marketplace with your real income, which may be lower post-divorce and qualify you for subsidies. Calendar the 60-day notice the day the decree enters. And do not let a gap open: one uninsured month is exactly when things happen.
Deadlines are set by federal law and your plan's documents; the mid-case protections vary by state. Your spouse's benefits administrator can confirm the dates and premiums, and they are used to being asked. For what belongs in your agreement, talk to a licensed family-law attorney.