FEHB now makes you prove your family members are eligible — every time
A quiet but consequential change took effect July 1, 2026: OPM now requires documentation proving eligibility for any family member you add to FEHB or Postal Service Health Benefits — not just after a birth or marriage, but every time, including during Open Season. The standard flipped from “the agency may ask for proof” to “you must provide it.” It comes from a 2022 finding that the government may be spending up to $1 billion a year covering people who don’t qualify. For most enrollees the impact is modest — but two traps catch people off guard: the married-over-12-months second-proof requirement, and the ex-spouse still on the plan. Here’s what’s eligible, what documents count, and an eligibility checker.
2026
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1. What changed
The rule implements Section 90101 of the FEHB Protection Act of 2025 (enacted in Public Law 119-21) and took effect July 1, 2026. Before, you only had to prove a family member’s eligibility for a qualifying life event, though an agency or carrier could ask at any time. Now:
The change traces to a 2022 GAO report that found OPM had no mechanism to identify or remove ineligible family members — costing the program an estimated up to $1 billion a year, shared by the government and by every enrollee through higher premiums (which rose 13.5% in 2025 and 12.3% in 2026).
2. Who’s eligible — and who isn’t
Importantly, the rule did not change who is eligible — only how strictly it’s verified. The categories:
- Eligible: your spouse; children under 26 (biological, adopted, step, or foster); and a disabled adult child 26+ who is incapable of self-support due to a disability that began before age 26.
- Not eligible: grandchildren (unless they qualify as a foster child), parents, a former spouse, and a domestic partner — even if they live with you and depend on you.
3. The documents that count
Acceptable proof depends on the relationship. In general:
- Spouse: government-issued marriage certificate (plus a second proof if married 12+ months — see below).
- Child under 26: birth certificate naming you as parent; for a stepchild, also the marriage certificate to the child’s parent.
- Adopted / foster child: adoption or foster-placement paperwork.
- Disabled adult child (26+): a medical certification of incapacity for self-support, with disability onset before 26.
4. The married-12-months trap
This is the requirement most people miss. If you’ve been married more than 12 months, a marriage certificate proves you got married — not that you’re still married. OPM generally requires a second, current proof, most commonly the front page of your most recent federal tax return showing a married filing status, or a set of documents showing shared residency and finances. Before Open Season, pull both: the certificate and the current proof.
5. The ex-spouse trap
The biggest single category of ineligible coverage — and the one this rule is really hunting — is the former spouse still on the plan. A former spouse is not an eligible family member; coverage ends at the end of the month the divorce becomes final. Leaving an ex on your FEHB can trigger demands to repay premiums and claims, and knowingly keeping an ineligible person on a federal health plan carries legal exposure. If you’re divorced, remove the ex-spouse promptly — and note they may be able to pursue their own coverage through spouse-equity provisions or a temporary continuation option.
6. Check a family member
Pick a relationship to see whether they’re eligible and what documents you’ll need to add them.
The family member
Eligibility rules come from 5 U.S.C. 8901(5) and the FEHB Handbook; document specifics can vary by employing office. Confirm with your HR (active), USPS (postal), or OPM Retirement Services (annuitants). Not legal advice.
7. How removal works
If you don’t provide acceptable documentation, your employing office — or OPM Retirement Services if you’re an annuitant — can decline the addition or remove a covered member. You get 60 calendar days from the request to respond; if a member is removed, you have one chance to request reconsideration, and that decision is final. Removing an ineligible member can also let you drop to a cheaper enrollment tier (Self Only or Self Plus One). The lesson: respond to any verification letter promptly, because coverage for anyone you can’t document ends.
8. The audit is coming
The verification-at-add rule is the first piece of the FEHB Protection Act. OPM has said it is still preparing the law’s bigger provision: a full audit of existing enrollments to verify that family members already on the rolls remain eligible — the mechanism that will actually reach the estimated 2–3% of the roughly 4 million covered family members who don’t qualify. If you have any doubt about someone already on your plan — an adult child who aged out, an ex-spouse, a grandchild — it’s far better to fix it now than to be flagged in the audit. Review your enrollment alongside the 2026 FEHB changes.
9. Frequently asked questions
What is the new FEHB family-member verification rule?
Effective July 1, 2026, OPM requires FEHB and PSHB enrollees to submit documentation proving the eligibility of any family member added to their coverage — every time, including during Open Season, not just for a qualifying life event. The rule implements Section 90101 of the FEHB Protection Act of 2025 (part of Public Law 119-21) and changes the standard from “the agency may request proof” to “the enrollee must provide proof.” It follows a 2022 GAO report estimating the government could be spending up to $1 billion a year covering ineligible family members.
Who counts as an eligible FEHB family member?
Eligible family members are your spouse and your children under age 26 — including biological children, adopted children, stepchildren, and foster children — plus a disabled adult child age 26 or older who is incapable of self-support due to a disability that began before age 26. Not eligible: grandchildren (unless they qualify as foster children), your parents, a former spouse, and a domestic partner — even if they live with you and depend on you financially. The rule didn’t change who is eligible; it changed how strictly eligibility is verified.
What documents do I need to add a spouse?
A government-issued marriage certificate is the starting point. The trap that catches many people: if you’ve been married more than 12 months, OPM generally requires a second, current proof that the marriage is ongoing — most commonly the front page of your most recent federal tax return showing married filing status, or a set of documents showing shared residency and finances. A marriage certificate alone proves you got married, not that you’re still married, which is exactly the gap the rule is designed to close.
What happens to an ex-spouse still on my FEHB?
A former spouse is not an eligible family member — coverage ends at the end of the month in which the divorce becomes final. Leaving an ex-spouse on your FEHB is the single most common ineligibility category, and it’s exactly what the verification rule and the coming audit are built to catch. Keeping an ineligible person on the plan can trigger demands to repay premiums and claims, and knowingly doing so can carry legal exposure. If you’re divorced, remove the ex-spouse promptly; they may be able to pursue separate coverage such as spouse equity or a temporary continuation option.
What if I can't provide the documents in time?
If you don’t submit acceptable documentation, your employing office (or OPM Retirement Services for annuitants) can decline to add the family member or remove one already covered. You generally have 60 calendar days from the request to respond, and if a member is removed you get one opportunity to request reconsideration, with a decision that is final. The practical takeaway: gather documents before Open Season or a life event, respond to any verification request quickly, and don’t let a paperwork gap end coverage for an eligible dependent.