OPM Open Season 2027 is open: Nov 9 to Dec 14, 2026. What to check before Dec 14

Health

Keeping FEHB in retirement, Medicare Part B, and Open Season.

Last updated November 12, 2026

Open Season 2027: Nov 9 to Dec 14, 2026

2027 FEHB enrollee premiums are up 10.9% on average. Review your plan's 2027 costs before Dec 14.

The 5-year rule

To keep FEHB in retirement, you generally must retire on an immediate annuity and have been enrolled for the 5 years immediately before retirement, or continuously since your first opportunity to enroll.

FEHB and Medicare Part B

At 65, decide whether to add Medicare Part B. FEHB plans coordinate with Medicare differently. Postal retirees in PSHB generally must enroll in Part B to keep PSHB.

Self Plus One vs. Self and Family

Match your enrollment type to who needs coverage. Premiums differ significantly.

Keeping FEHB for a surviving spouse

A spouse can generally keep FEHB only if you elect a survivor annuity and stay enrolled in Self Plus One or Self and Family.