How and When an Employer Can Terminate COBRA Coverage

3/17/2026

An employer or plan can end COBRA coverage early, before the 18-, 29- or 36-month maximum, only for a reason the law allows. The reasons are: a premium is not paid in full within the grace period, the employer stops maintaining any group health plan, the qualified beneficiary becomes covered under another group health plan or entitled to Medicare after electing COBRA, a disability extension ends because Social Security finds the person is no longer disabled, or the beneficiary is terminated for cause on the same basis as an active employee would be. Every early termination requires a written notice to the beneficiary.

Permitted Grounds for Early Termination

1. Nonpayment of premium

This is the most common ground and the one most often mishandled. Coverage can end if the initial premium is not paid within 45 days after election, or a later premium is not paid by the end of its grace period of at least 30 days. Before terminating, confirm that:

You judged timeliness by the date payment was sent, not the date it arrived.
Any shortfall was significant. A shortfall that is not significant (no more than the lesser of $50 or 10 percent of the amount due) must be treated as full payment unless you notified the beneficiary and allowed 30 days to pay the difference.
The grace period you applied matches the plan document.

Billing and payment mechanics are covered in how to bill for COBRA premiums.

2. The employer stops offering any group health plan

COBRA continues coverage under the employer's plans. If the employer (including its controlled group) stops maintaining every group health plan, there is nothing left to continue and COBRA ends. Dropping one plan while keeping another does not qualify; beneficiaries in the dropped plan generally move to the remaining plan on the same basis as active employees who were moved.

3. Other group health coverage obtained after electing COBRA

Coverage can end when a qualified beneficiary first becomes covered under another group health plan after the date of the COBRA election, for example through a new employer or a spouse's employer. Two points matter:

Coverage the person already had before electing COBRA is not a ground for termination. A beneficiary who was on a spouse's plan when COBRA started can keep both.
Individual policies do not count. Enrolling in an individual Marketplace plan is not coverage under another group health plan, so it does not permit the plan to end COBRA. The beneficiary may choose to drop COBRA, but that is their decision.

4. Medicare entitlement after electing COBRA

Similarly, coverage can end when the qualified beneficiary becomes entitled to Medicare after the COBRA election. Entitlement generally means enrollment in Part A or Part B, not merely reaching eligibility age. Medicare entitlement that already existed at election is not a ground to end COBRA. Termination applies only to the person who became entitled; the spouse and children keep their COBRA rights.

5. End of a disability extension

Where coverage was extended to 29 months because of a disability, it can end if Social Security makes a final determination that the person is no longer disabled. Coverage can then stop on the first day of the month that begins more than 30 days after that determination, though not before the original 18 months run out. The beneficiary must tell the plan within 30 days of the determination.

6. Termination for cause

A plan may end COBRA coverage for cause, such as submitting fraudulent claims, on the same basis it would end coverage for a similarly situated active participant. The plan cannot create a stricter standard for COBRA participants.

What Is Not a Ground for Early Termination

Gross misconduct discovered after the fact. The gross misconduct exception determines whether a termination is a qualifying event in the first place. Discovering misconduct after COBRA has been elected and paid for is not on the list of permitted grounds, and cutting off coverage on that basis is high-risk. Take legal advice.
A beneficiary moving out of a region-specific plan's service area, without first checking alternatives. If the employer offers active employees in the new area other coverage, the beneficiary must be offered it too.
The employer's cost of claims. High claims do not permit ending COBRA early.
Late payment that was sent within the grace period. A payment postmarked in time is timely even if it arrives later.

The Early Termination Notice

When coverage ends before the maximum period, the plan administrator must send a notice as soon as practicable after deciding to end it. The notice must state:

The reason coverage is ending.
The date it ends.
Any rights the beneficiary has to elect other group or individual coverage, such as a conversion right under the plan.

Our post on notice requirements for terminating COBRA covers the notice content in more detail. Where a beneficiary asks for continuation that is not available at all, a separate notice of unavailability applies; see COBRA notice deadlines.

Retroactive Termination

A plan sometimes learns of a ground for termination late, for example that a beneficiary joined a new employer's plan months earlier. Whether coverage can be ended retroactively, and whether claims paid in the meantime can be recovered, depends on the plan document and the insurance contract. Check both before sending notice, and coordinate with the carrier so claims processing matches the termination date.

Documentation That Defends the Decision

For each early termination, the file should show the ground relied on and the evidence for it: the payment history and grace-period calculation for nonpayment, the date and source of information about other group coverage or Medicare entitlement, or the Social Security determination. It should also contain a copy of the termination notice and proof of mailing. When coverage ends at the normal maximum instead, record the calculation of that date; our post on how long COBRA coverage lasts explains how to work it out.

Frequently Asked Questions

Can an employer cancel COBRA if the former employee gets a new job?

Only if the person actually becomes covered under the new employer's group health plan after electing COBRA. A new job without new coverage is not a ground to end COBRA.

Does buying a Marketplace plan end COBRA automatically?

No. An individual policy is not another group health plan, so the plan cannot end COBRA on that basis. The beneficiary can stop paying or ask to cancel.

If the employee becomes entitled to Medicare, does family coverage end?

No. Only the person who becomes entitled loses COBRA on that ground. The spouse and dependents keep theirs.

Do we need a notice when coverage ends at the maximum period?

The early termination notice rule applies when coverage ends before the maximum. Sending a reminder as the maximum approaches is still good practice.

What if we terminated coverage by mistake?

Reinstate it promptly and work with the carrier to process claims for the gap. Delay makes the correction harder and the claim larger.