Short answer
Postponed usually starts from MRA+10. Deferred starts after leaving without an immediate annuity.
OPM says a postponed annuity can reduce or eliminate the MRA+10 age reduction by starting the annuity later. OPM describes deferred retirement as the path for a former FERS employee who was not entitled to an annuity when leaving federal service, but becomes entitled later.
Start here
What you actually came to find out
Plain answers first. Sources stay below for checking details.
What is postponed?
A later annuity start date tied to an MRA+10 path, used to reduce or remove the age reduction.
What is deferred?
A later annuity for a former FERS employee who was not entitled to an immediate annuity at separation.
What changes most?
FEHB, FEGLI, supplement eligibility, and the bridge years before income starts.
What does the map need?
Separation age, annuity start age, service years, TSP, health coverage, and monthly spending.
Postponed
MRA+10
OPM says postponing can reduce or eliminate the MRA+10 age reduction.
Deferred
Later annuity
OPM describes deferred retirement for former employees not entitled to an annuity at separation.
Source trail: OPM
Coverage
Different
OPM says deferred annuitants are not eligible to continue health, life, dental, or vision benefits.
Source trail: OPM
Supplement
No for deferred
OPM says former employees receiving deferred annuities are not eligible for the retiree annuity supplement.
Source trail: OPM
The clean read is separation first, annuity start second, and benefit coverage third.
Neutral landscape
The shape of the question
The first source is OPM retirement-type guidance because the labels carry different benefit consequences.
Source trail: OPM
The second source is OPM computation guidance because the MRA+10 age reduction follows the annuity commencing date.
Source trail: OPM
The third source is OPM benefit-continuation language because health and life coverage can be the real cost of the choice.
The fourth source is TSP withdrawal guidance because the gap between separation and annuity start still needs cash flow.
Source trail: Thrift Savings Plan
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
FERS Information: Types of Retirement
OPM explains FERS retirement types, eligibility ages, service rules, and special retirement supplement context.
Source framing
OPM is the official source for FERS retirement eligibility and supplement framing.
Strongest for: FERS retirement eligibility and supplement context
Read at OPMSource 02
OPM
FERS Information: Computation
OPM explains FERS annuity computation and related retirement benefit mechanics.
Source framing
OPM explains how FERS retirement benefits are calculated from service, age, and salary inputs.
Strongest for: FERS calculation vocabulary
Read at OPMSource 03
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 04
Thrift Savings Plan
Withdrawals in Retirement
The TSP explains withdrawal options for participants in retirement.
Source framing
The TSP explains that retirement withdrawals can be structured in different ways after separation.
Strongest for: retirement withdrawal options
Read at Thrift Savings PlanPlain-English forks
The forks people face
Most retirement questions hide a few smaller decisions. These are the practical pieces that change the plan.
Were you eligible for an immediate annuity when you left?
Why it matters: That is the first split between postponed and deferred language.
In real life: This fork names the path.
What to look at: What to look at: OPM FERS retirement types.
When does the annuity begin?
Why it matters: The age reduction follows the annuity commencing date.
In real life: This fork changes the pension amount.
What to look at: What to look at: MRA, age 60, age 62, and service years.
What happens to FEHB and FEGLI?
Why it matters: OPM treats postponed and deferred coverage differently.
In real life: This fork can change the real monthly cost.
What to look at: What to look at: benefit continuation rules at separation.
What pays the bridge years?
Why it matters: A later annuity start date leaves a cash-flow interval.
In real life: This fork changes the map before the pension starts.
What to look at: What to look at: TSP, cash, work income, and spending.
Common questions
Quick answers
Short, plain answers for the questions people usually have next. The source trail stays available below.
Is postponed FERS retirement the same as deferred retirement?+
No. OPM uses postponed language around reducing the MRA+10 age reduction. Deferred retirement is for former employees who were not entitled to an annuity upon separation but may be entitled later.
Can postponing reduce the MRA+10 penalty?+
Yes. OPM says postponing the annuity beginning date can reduce or eliminate the age reduction.
Does deferred retirement keep FEHB?+
OPM says a deferred annuitant is not eligible to continue health benefits, life insurance coverage, dental, or vision benefits held while employed.
Does deferred retirement get the FERS supplement?+
OPM says former employees who receive a deferred annuity are not eligible for the retiree annuity supplement.
What if I have 20 years and wait until 60?+
OPM says the age reduction is eliminated if you have 20 years of creditable service and elect to have the annuity commence at age 60.
Where does this belong in the map?+
It belongs in the federal timing layer beside TSP, health coverage, life insurance, taxes, and spending.
How this page is curated
This page uses OPM FERS retirement-type guidance, OPM FERS computation guidance, FEHB enrollment context, and TSP withdrawal guidance. It separates separation date from annuity start date because that is where the benefit consequences change.
Read the planner methodologyTrust anchor
Sources used on this page
Every source named above is listed here in one place.
OPM. FERS Information: Types of Retirement
https://www.opm.gov/retirement-center/fers-information/types-of-retirement/OPM. FERS Information: Computation
https://www.opm.gov/retirement-center/fers-information/computation/OPM. Enrollment
https://www.opm.gov/healthcare-insurance/healthcare/enrollment/Thrift Savings Plan. Withdrawals in Retirement
https://www.tsp.gov/withdrawals-in-retirement/
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.