Short answer
The first question is who still needs FEHB coverage.
OPM explains that Self Plus One covers the enrollee and one eligible family member, while Self Only covers only the enrollee. OPM enrollment rules decide when coverage changes can be made.
Start here
What you actually came to find out
Plain answers first. Sources stay below for checking details.
What does Self Plus One cover?
OPM says it covers the enrollee and one eligible family member.
What does Self Only cover?
It covers only the enrollee.
When can it change?
OPM enrollment rules explain Open Season and qualifying events.
Why does it matter?
The premium line can fall, but coverage for a spouse or survivor can also change.
Self Plus One
Two people
OPM explains the Self Plus One enrollment type.
Source trail: OPM
Self Only
One person
OPM enrollment sources explain FEHB coverage choices.
Source trail: OPM
Medicare
Separate layer
OPM explains Medicare and FEHB interaction.
Source trail: OPM
Enrollment timing
Open Season
OPM explains when enrollment changes can happen.
Source trail: OPM
A neutral FEHB check separates premium savings from coverage risk: who is covered, when Medicare starts, and what happens if one spouse dies or changes plans.
Neutral landscape
The shape of the question
The enrollment-type source is OPM Self Plus One guidance. It explains the enrollee plus one eligible family member structure.
Source trail: OPM
The timing source is OPM enrollment guidance. It explains Open Season, qualifying events, and retirement continuation context.
Source trail: OPM
The Medicare source is OPM Medicare and FEHB guidance because federal retirees often compare FEHB with Medicare enrollment.
Source trail: OPM
The plan source is the health-cost line: premiums, deductibles, out-of-pocket risk, and who remains covered.
Source trail: Medicare.gov, OPM
Curator core
What the authorities say
These sources are here for the reader who wants to check the work. The plain-English answer stays above them.
Source 01
OPM
Self Plus One
OPM explains the FEHB Self Plus One enrollment type, eligible family member context, and premium contribution framework.
Source framing
OPM explains that Self Plus One covers the enrollee and one eligible family member.
Strongest for: official FEHB Self Plus One rules
Read at OPMSource 02
OPM
Enrollment
OPM explains FEHB enrollment changes, Open Season, qualifying life events, and retirement continuation context.
Source framing
OPM explains when FEHB enrollment can change and how coverage continues into retirement.
Strongest for: official FEHB enrollment change rules
Read at OPMSource 03
OPM
Medicare and FEHB
OPM explains how Medicare and the Federal Employees Health Benefits Program interact for federal retirees.
Source framing
OPM frames Medicare and FEHB as overlapping coverage decisions for federal retirees.
Strongest for: official FEHB and Medicare interaction
Read at OPMSource 04
OPM
Medicare vs FEHB Enrollment
OPM explains FEHB and Medicare enrollment interactions and why retirees compare the coverage paths.
Source framing
OPM separates Medicare enrollment from FEHB enrollment so retirees can see the moving parts.
Strongest for: FEHB enrollment decision points
Read at OPMSource 05
Medicare.gov
Medicare Costs
Medicare.gov explains premiums, deductibles, copayments, coinsurance, and cost vocabulary.
Source framing
Medicare.gov is the consumer source for Medicare cost categories and premium terms.
Strongest for: Medicare cost vocabulary
Read at Medicare.govSource 06
SSA.gov
When to Sign Up for Medicare
SSA explains Medicare sign-up timing, automatic enrollment context, special enrollment periods, and possible penalties.
Source framing
SSA frames Medicare sign-up as a timing question tied to age 65, Social Security benefits, and employer coverage.
Strongest for: SSA view of Medicare timing and employer coverage
Read at SSA.govPlain-English forks
The forks people face
Most retirement questions hide a few smaller decisions. These are the practical pieces that change the plan.
Who needs coverage right now?
Why it matters: Self Only covers one person. Self Plus One covers the enrollee and one eligible family member.
In real life: This fork decides whether dropping coverage leaves someone uncovered.
What to look at: What to look at: OPM enrollment type rules.
Is either spouse on Medicare?
Why it matters: Medicare can change the cost and coverage comparison.
In real life: This fork changes the health-cost stack.
What to look at: What to look at: OPM Medicare and FEHB guidance.
When can enrollment change?
Why it matters: Open Season and qualifying events control timing.
In real life: This fork changes when premium savings could begin.
What to look at: What to look at: OPM enrollment guidance.
What happens to survivor coverage?
Why it matters: A spouse or survivor situation can make coverage continuity matter more than the monthly premium.
In real life: This fork changes the one-spouse road.
What to look at: What to look at: OPM survivor and FEHB rules.
Common questions
Quick answers
Short, plain answers for the questions people usually have next. The source trail stays available below.
What is FEHB Self Plus One?+
OPM explains that Self Plus One covers the enrollee and one eligible family member.
What is FEHB Self Only?+
Self Only covers only the enrollee under FEHB enrollment rules.
Can retirees change FEHB enrollment?+
OPM enrollment guidance explains Open Season, qualifying events, and retirement continuation context.
Does Medicare replace FEHB?+
OPM explains how Medicare and FEHB interact for federal retirees. The coverage paths can overlap.
Why not always pick the lower premium?+
The lower premium may change who is covered and what risk remains, so the full health-cost line matters.
Where does this belong in the plan?+
It belongs in recurring health premiums, Medicare timing, survivor coverage, and one-spouse scenarios.
How this page is curated
This page uses OPM Self Plus One guidance, OPM enrollment guidance, OPM Medicare and FEHB sources, Medicare.gov cost vocabulary, and SSA Medicare sign-up guidance.
Read the planner methodologyTrust anchor
Sources used on this page
Every source named above is listed here in one place.
Medicare.gov. Medicare Costs
https://www.medicare.gov/basics/costs/medicare-costsOPM. Self Plus One
https://www.opm.gov/healthcare-insurance/special-initiatives/self-plus-one/OPM. Enrollment
https://www.opm.gov/healthcare-insurance/healthcare/enrollment/OPM. Medicare and FEHB
https://www.opm.gov/healthcare-insurance/healthcare/medicare/OPM. Medicare vs FEHB Enrollment
https://www.opm.gov/healthcare-insurance/healthcare/medicare/medicare-vs-fehb-enrollment/SSA.gov. When to Sign Up for Medicare
https://www.ssa.gov/medicare/plan/when-to-sign-up
Before you act on this
This plan is educational. It is not personalized financial, tax, or insurance advice. Projections illustrate the math, they do not predict the future. Talk to your own licensed financial professional before acting on any of it.