Most FERS Employees Retire Too Late: The $246,816 Math

Q: What is the earliest age a FERS employee can retire with full benefits?

Your Minimum Retirement Age, which is 56 to 57 depending on birth year, with 30 years of service. MRA+30 is an immediate, unreduced annuity with the FERS Supplement included. There is no penalty and no waiting period. Employees born in 1970 or later have an MRA of 57.

Q: Is retiring at 62 worth 4 extra years of work?

Run the numbers before assuming yes. In our GS-12 worked example, waiting from 58 to 62 raises gross retirement income by about $273 per month, but costs $246,816 in pension, Supplement, and TSP income the 58-year-old retiree collects during those 4 years. Recovering that head start at $273 per month takes roughly 900 months. Waiting can still make sense for other reasons, but the raw income math rarely supports it.

Q: What is the FERS Supplement worth?

For a 30-year employee whose Social Security estimate at 62 is $18,000 per year, the Supplement pays about $1,125 per month from retirement until age 62. It is only paid on immediate retirements like MRA+30, not MRA+10 or deferred retirement, and it phases out if you earn more than $24,480 in 2026 wages.

Q: Does the 1.1% multiplier justify working to 62?

It helps, but it is smaller than it sounds. The bump from 1.0% to 1.1% requires retiring at 62 or later with at least 20 years. In our example it adds about $3,100 per year, which is real money but takes decades to offset the four years of foregone retirement income.

Q: Why do most federal employees keep working past eligibility?

GAO found only about one in five feds retires in the first year of eligibility, and OPM trend data shows nearly half are still working five years later. The common reasons are uncertainty about the math, health insurance worries the FEHB 5-year rule already answers for most people, and one-more-year syndrome. The average federal retirement age is 62.3, years past typical first eligibility.

Last Updated: August 9, 2026 Reading Time: 9 min

FedWeek ran a piece this month arguing most federal employees work longer than they actually need to. They're right, but they didn't show the math. This piece does: what "one more year" actually costs a FERS employee who is already eligible, and the numbers that decide when you can afford to leave.

FERS Employees Are Working Years Past Their Eligibility Date

The numbers on this are old, consistent, and striking. GAO found that only about 21 percent of eligible federal employees retire within their first year of eligibility. OPM trend data shows nearly half are still on the payroll five years after they could have walked. The average federal retirement age sits at 62.3 years, per OPM statistics, even though a career employee's Minimum Retirement Age is 56 or 57.

Some of that is choice: people like their work, or want a bigger TSP cushion. But a large share of it is simply not knowing the number. Retirement timing feels like a leap of faith, but for most FERS employees it is arithmetic.

The Worked Example: Retiring at 58 vs. Working to 62

Take a GS-12 Step 5 in the Rest of U.S. locality: $101,440 in total 2026 pay ($86,659 base plus 17.06% locality). Age 58, 30 years of service, 2,000 hours of sick leave, a $420,000 TSP, Social Security estimated at $18,000 a year at 62.

Option A: retire now at 58 (MRA+30, immediate and unreduced).

Income source	Math	Monthly
FERS pension	1.0% x $101,440 x 30.96 yrs (sick leave adds 0.96)	$2,617
FERS Supplement	$18,000 x 30/40	$1,125
TSP draw (4%)	$420,000 x 4% / 12	$1,400
Total gross		$5,142

Option B: work four more years, retire at 62 with 34 years. The 1.1% multiplier now applies, the High-3 grows to about $105,000, and the TSP compounds to roughly $642,000 with continued contributions.

Income source	Math	Monthly
FERS pension	1.1% x $105,000 x 34	$3,273
FERS Supplement	ends at 62	$0
TSP draw (4%)	$642,490 x 4% / 12	$2,142
Total gross		$5,415

Waiting wins by $273 a month. But during those four years, the age-58 retiree collected 48 months of $5,142: $246,816 the age-62 retiree never sees.

Divide the head start by the monthly advantage and the result is 904 months to break even. The later retiree pulls ahead somewhere past age 135. Even after taxes, survivor elections, and less favorable assumptions, the crossover lands decades beyond any actuarial table.

FedTools 2026 original analysis using OPM FERS formulas. Assumptions: 7% TSP growth, $23,000 annual contributions in Option B, Social Security timing held equal. Market returns and salary growth will vary; the shape of the result does not.

The Three Levers Most Feds Undervalue

The FERS Supplement. Retire on an immediate annuity before 62 and FERS pays you a bridge worth your service years divided by 40, times your age-62 Social Security estimate. For our 30-year GS-12, that's $13,500 a year, roughly $1,125 a month that exists only because they retired early. It phases out if you earn wages above $24,480 (2026 limit), and it never applies to MRA+10 or deferred retirements.

Sick leave. Unused sick leave converts to service credit at 2,087 hours per year. Two thousand hours added nearly a full year to our example's pension, permanently. You cannot use it to reach eligibility, but it raises the check for life.

The 1.1% multiplier, honestly weighed. Retiring at 62 or later with 20+ years bumps every service year from 1.0% to 1.1% of High-3. In our example that's worth about $3,140 a year. Real money, but the four years it takes to claim it cost a quarter of a million dollars in foregone income. The multiplier is a tiebreaker, not a reason.

The Two FERS Rules That Actually Constrain Your Date

The FEHB 5-year rule. To carry health insurance into retirement, you must be enrolled in FEHB for the five consecutive years immediately before your date, per OPM. For most career feds this is already satisfied. If you recently switched from a spouse's plan, this rule, not the pension math, may set your earliest date.

MRA+10 is not the same deal. Retiring at your MRA with 10 to 29 years takes a 5% permanent cut for every year under 62 and forfeits the Supplement. MRA+30 has neither. If you're a few years short of 30, the value of bridging to that line is enormous compared to leaving under MRA+10.

What About CSRS?

The shrinking CSRS population faces a friendlier version of the same question. CSRS annuities replace far more income (up to 80 percent of high-3 at 41 years and 11 months of service), and every year past that point adds almost nothing to the pension while still costing a year of retirement. A CSRS employee at the 80 percent cap is, in the bluntest terms, working for their salary minus the annuity they could already be collecting. The break-even logic above applies with even more force.

How to Find Your FERS Number This Week

Pull your latest SF-50 and your Social Security statement (ssa.gov).
Compute High-3, service years including sick leave, and your multiplier.
Price your three income streams at your earliest eligible date: pension, Supplement, TSP at a 4% draw.
Compare against your actual monthly spending, not your salary. Most retirees need far less than their gross pay once TSP contributions, FERS deductions, and payroll taxes stop.
Repeat at one-year increments and look at what each extra year really buys.

Calculate Your Earliest Affordable Date

Use the free FERS Retirement Calculator to run your pension at any retirement date, then compare dates side by side. The High-3 Calculator pins down your average salary, and the TSP Calculator models your balance at different draw rates.

Frequently Asked Questions

What is the earliest age a FERS employee can retire with full benefits?

Your MRA (56 to 57 by birth year) with 30 years of service. MRA+30 is immediate, unreduced, and includes the FERS Supplement. Age 60 with 20 years and age 62 with 5 years are the other unreduced routes.

Is retiring at 62 worth 4 extra years of work?

Do the math for your own numbers first. In our example, waiting bought $273 a month at a cost of $246,816 in foregone income, a break-even of roughly 900 months. Non-financial reasons to stay are legitimate; the income math alone rarely is.

What is the FERS Supplement worth?

Service years divided by 40, times your age-62 Social Security estimate. Thirty years with an $18,000 estimate pays about $1,125 a month until 62. Immediate retirements only, and the 2026 earnings test starts at $24,480.

Does the 1.1% multiplier justify working to 62?

It adds about 10% to the pension for those who qualify, roughly $3,100 a year in our example. Weigh it against what the extra years cost you in collected income; it usually loses.

Why do most federal employees keep working past eligibility?

Uncertainty, mostly. GAO puts first-year-of-eligibility retirements at about 21 percent, and half of eligible feds are still working five years later. The employees who leave confidently are the ones who ran the numbers.

Best Dates to Retire in 2026: Picking the exact day once you've picked the year
TSP Milestone Benchmarks by Age: Whether your balance is on track for your date
FERS Sick Leave Value: What your hours are worth at retirement
State of Federal Retirement Readiness 2026: The full data picture

Sources: OPM FERS eligibility and computation, GAO-01-509, FRTIB 2024 Annual Report.