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FEHB enrollment timing

FEHB Open Season and qualifying life events

Open Season is the broad annual election window. A qualifying life event is a narrower, fact-specific opportunity outside that window. The event must permit the change you want, the election must be consistent with the event, and the filing deadline and effective date must be checked before you submit it.

Editorial review
Reviewed
Primary sources
OPM and other primary federal guidance

Direct answer

OPM's annual Open Season runs from the second Monday in November through the second Monday in December unless OPM announces a change. During Open Season, eligible employees can generally enroll or change plans, options, and enrollment types. Outside Open Season, a QLE may allow a specific change—often within a window measured around the event, not whenever the enrollee notices it.

Annual window
Second Monday Nov.–Dec.
Common QLE period
Often 60 days after
Control
OPM table + benefits office

Open Season and QLEs solve different problems

Open Season is the recurring opportunity for eligible employees to enroll, change plans or plan options, change enrollment type, or address premium conversion. OPM announces the dates and plan-year materials. The election generally becomes effective in the following year under the applicable employee or annuitant rules.

A QLE can permit a change outside Open Season because something material changed: family status, eligibility, employment status, residence or service area, other group coverage, Medicare status, or another event listed by OPM. The event code controls which actions are allowed; a QLE does not create an unlimited right to make any change.

When to use each FEHB enrollment path
PathTypical useWhat to verify
Open SeasonAnnual plan, option, or tier reviewAnnounced dates, enrollment channel, effective date
Qualifying life eventA permitted change tied to a specific eventEvent code, allowed action, filing window, evidence
New eligibilityNew appointment or move into an eligible positionEligibility date and initial enrollment deadline
Special OPM actionPlan termination or announced special enrollment periodOPM and agency instructions

Build the deadline from the event date

Many employee QLE opportunities allow filing within 60 days after the event, but some windows begin before the event and some effective-date rules are special. OPM's family-status rule, for example, generally allows a change during the period beginning 31 days before and ending 60 days after the event. Do not replace the official event table with a blanket 60-day rule.

The effective date is not always the date the form is filed. A birth or addition of a child can use the first day of the pay period in which the child becomes a family member, while other changes commonly begin with a pay period after receipt. A late filing can also create a gap even when the event would otherwise permit enrollment.

  • Write down the event date and the date you first became eligible to act.
  • Locate the exact OPM QLE code and permitted change, not just a similar example.
  • Ask the benefits office what documentation and enrollment channel it requires.
  • Save the submission confirmation and verify the new enrollment code on payroll or annuity records.

Common events still require a precise match

Marriage, divorce, birth, adoption, death of a spouse or dependent, a child losing eligibility, loss or gain of other group coverage, a move outside an HMO service area, and Medicare eligibility appear in OPM's enrollment rules. The available action can be an increase, decrease, plan change, enrollment, or cancellation depending on the event and premium-conversion status.

Open Season does not reopen every past missed QLE, and a QLE is not a substitute for a separation determination. If employment is ending, use the resignation, RIF, or retirement owner for the coverage-ending timeline and then apply the enrollment rules that belong to that path.

Questions about this FEHB decision

When is FEHB Open Season?

OPM's standing rule is the second Monday in November through the second Monday in December, unless OPM announces modified or additional dates. Verify the current announcement before filing.

Can I change FEHB after a qualifying life event?

Possibly. The OPM event table must permit the requested action, and the change generally must be consistent with the event and filed within the applicable period.

Is every FEHB QLE deadline 60 days?

No. Many rules use a 60-day period, but the start date, any pre-event window, allowed action, and effective date vary. Use the exact OPM event row.

Does becoming eligible for Medicare let me change FEHB plans?

OPM lists Medicare entitlement as an event that can permit a plan or option change. Confirm the one-time opportunity, filing date, and effective date with the administering office.

Primary sources

Reviewed August 25, 2026. Each source below is an official federal page used for the claims on this resource.

This is general educational information, not legal, tax, financial, medical, or enrollment advice. OPM, your employing office or retirement system, the carrier brochure, Medicare, and the plan administrator control your actual eligibility, timing, costs, and coverage.