Quick answer: In most cases, retiring at 57 provides higher or equal income until around age 77, thanks to the FERS Supplement. After 77, retiring at 62 produces more total lifetime income — especially when factoring in the higher pension multiplier and additional TSP growth. The break-even point depends on your specific numbers.

Read on for the full math. In this example, the break-even is 77. In real scenarios, we've seen it range from 72 to 84 depending on salary, TSP balance, and retirement timing. Your number is almost certainly different.

The Question Every FERS Employee Eventually Asks

You've hit your Minimum Retirement Age. You have 30 years of service. You're eligible to retire at 57.

But your colleague is staying until 62. She says the extra five years are "worth it." Your brother-in-law retired from the private sector at 55 and can't understand why you're still going in.

Who's right?

The answer depends entirely on numbers — your numbers. But we can show you exactly how the math works, using a realistic GS-13 example, so you can apply the same framework to your own situation.

First: What Changes Between 57 and 62?

Under FERS, retiring at 57 vs. 62 affects four things simultaneously — and most people only focus on the first:

  1. Your base annuity multiplier — 1% per year of service (or 1.1% if you retire at 62+ with 20+ years)
  2. Your FERS Supplement — available at MRA with 30 years, but subject to an earned income test and it ends at 62 regardless
  3. Your High-3 average salary — five more years of (likely higher) pay increases your pension base
  4. Your TSP balance — five more years of contributions and compounding

The real difference lives in all four.

Should You Retire at 57 If You Have 30 Years of Service?

Having 30 years at your MRA is the clean scenario — no early retirement penalty, full FERS Supplement eligibility, and FEHB carried into retirement. But "eligible" and "optimal" aren't the same thing.

The honest answer is: retiring at 57 with 30 years is financially viable for most GS-13+ employees, primarily because the FERS Supplement closes most of the income gap until age 62. The question is what happens after the supplement disappears.

The Example: A GS-13, Step 6 Employee

Let's use a concrete scenario.

If you're a GS-12 to GS-14 with 25–35 years of service, this scenario will be directionally similar to your situation — the income numbers will differ, but the structure of the tradeoff is the same.

Profile:

Scenario A: Retire at 57

FERS Annuity Calculation:

1% × 30 years × $112,000 High-3 = $33,600/year ($2,800/month)

Note: The 1.1% multiplier does not apply here — that bonus only kicks in at age 62 with 20+ years of service.

FERS Supplement:

The FERS Supplement bridges the gap to Social Security eligibility. For this employee, the estimated supplement is approximately $1,050/month, based on 30 years of FERS-covered service.

The supplement ends at age 62, regardless of whether you claim Social Security. It also phases out dollar-for-dollar above the annual earned income exempt amount — adjusted each year by the Social Security Administration (check SSA.gov for the current limit).

Monthly Income at 57 (before tax):

Scenario B: Retire at 62

FERS Annuity Calculation:

1.1% × 35 years × $121,000 High-3 = $46,585/year ($3,882/month)

That 1.1% multiplier matters — and so does the higher High-3 salary. Together they're responsible for over $1,000/month more in pension income, before factoring in TSP.

FERS Supplement:

None. The supplement ends at 62. But at 62, you can begin Social Security if you choose, which for this employee might add $1,400–$1,800/month depending on their earnings record.

TSP Balance at 62 (if still contributing):

$420,000 growing at 6% + $23,000/year in new contributions over 5 years ≈ $692,000

That's roughly $272,000 more in TSP than if you retired at 57 and stopped contributing.

Monthly Income at 62 (before tax, no Social Security yet):

Side-by-Side Comparison

Retire at 57Retire at 62
FERS multiplier1.0%1.1%
Years of service3035
High-3 salary$112,000$121,000
Monthly annuity$2,800$3,882
FERS Supplement (age 57–62)$1,050/moN/A
Monthly income at retirement~$3,850~$3,882
TSP balance at retirement$420,000~$692,000
Monthly income at age 63+~$2,800 (supplement gone)~$3,882+

Is It Worth Waiting Until 62 Under FERS?

For most federal employees, waiting until 62 produces more lifetime income — but only if you live past the break-even point. The trade-off isn't just financial: it's five years of your best health, the freedom to leave a job you're done with, and the peace of mind of knowing your retirement is funded.

The case for waiting is strongest when: your High-3 is still climbing (recent promotion, locality pay adjustment), you plan to do paid consulting work after retiring, or your family health history suggests longevity past 80.

The Break-Even Analysis

Here's where it gets interesting.

Between ages 57 and 62, the early retiree actually has higher or equal monthly income thanks to the FERS Supplement. It's after age 62 — when the supplement disappears — that the gap opens up permanently.

Cumulative pension income comparison (pension + supplement only, no TSP):

AgeRetire at 57 (cumulative)Retire at 62 (cumulative)
62~$231,000$0 (just retired)
65~$331,800~$139,752
70~$499,800~$372,720
75~$667,800~$605,688
77~$759,000~$745,000
80~$835,800~$838,656
$0K$196K$391K$587K$783K$978KBreak-even77576062657075778082Cumulative Pension IncomeAgeRetire at 57Retire at 62

Figure 1: Cumulative pension income (no TSP). Break-even crossing at approximately age 77.

This is the entire decision in one number: ~77.

Live longer than that, and waiting until 62 wins — you'll collect more total lifetime pension income. Retire earlier, and leaving at 57 was the better financial move. Everything in this article is really just context for that single crossover point.

The TSP differential ($272,000 more at age 62) pushes the break-even point even later, since that money can generate additional income throughout retirement.

What the Numbers Don't Capture

The break-even analysis above is real — but it's incomplete. Here's what it misses:

Health: Can you still get FEHB in retirement? To carry Federal Employee Health Benefits (FEHB) into retirement, you must have been continuously enrolled (or covered as a family member) for the five years immediately before retirement. Retiring at 57 after 30 years almost certainly meets this requirement. Confirm with your HR office.

The earned income test on the supplement. If you retire at 57 and pick up any part-time consulting or freelance work, the FERS Supplement phases out at $1 for every $2 earned above the SSA annual exempt amount. A single consulting contract could wipe out $6,000–$12,000 in annual supplement income.

The 1.1% multiplier is permanent. That extra 0.1% isn't a one-time bonus — it compounds across every year of your retirement. For a 35-year employee, the difference between 1.0% and 1.1% is $4,235/year every year for the rest of your life.

COLAs in retirement. FERS retirees under age 62 receive no COLA. Once you reach 62, COLAs kick in — but at a reduced rate compared to CSRS. The longer your pre-62 retirement window, the more purchasing power you lose without COLA protection.

Social Security timing. Neither scenario above includes Social Security. For most federal employees, the optimal Social Security claiming strategy is independent of your FERS retirement date. But if you retire at 57 and need income, you may feel pressure to claim Social Security early — locking in a permanently reduced benefit. That's a separate decision worth modeling carefully.

So: 57 or 62?

There's no universal answer — but here's the honest framework:

The case for retiring at 57:

The case for waiting until 62:

The question to actually ask yourself: Not "which scenario produces more money at age 80?" but rather: "What is my expected health trajectory, what will I do with my time, and how much does the income difference actually change my quality of life?"

For most GS-13 employees, the difference between $2,800 and $3,882/month is meaningful but not life-altering. For a GS-7 employee with a much lower pension base, the supplement and the multiplier math may land very differently.

We'll calculate your exact break-even age, income difference, and scenario outcomes based on your real numbers.

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FedHorizon is a decision-support tool, not a financial advisor. All calculations use published OPM formulas and FERS regulations. FERS Supplement estimates are approximations based on years of FERS-covered service. Actual supplement amounts are determined by OPM at retirement. Earned income test thresholds are adjusted annually by the Social Security Administration — visit SSA.gov for the current year's limit. For guidance on your specific situation, consult a fee-only financial advisor familiar with federal benefits, or contact your agency's HR Benefits office.


Frequently Asked Questions

What is the Minimum Retirement Age (MRA) for FERS employees?
Your MRA depends on your birth year. For most current federal employees (born 1970 or later), the MRA is 57. Employees born between 1953 and 1969 have MRAs ranging from 55 to 56 years and 11 months. To retire at your MRA with an immediate, unreduced pension, you need at least 30 years of service. With 20 years of service, you can retire at age 60.
Is there an early retirement penalty under FERS?
Yes, under certain conditions. If you retire at your MRA with fewer than 30 years of service (but at least 10), your pension is reduced by 5% for each year you are under age 62 — a significant FERS early retirement penalty. However, if you have 30 years at MRA or 20 years at age 60, there is no reduction. The scenarios in this article assume 30 years of service at MRA, so no penalty applies.
How is the High-3 salary calculated for FERS retirement?
Your High-3 average salary is the average of your highest three consecutive years of base pay — most often your final three years, but not always. It excludes overtime, bonuses, and most allowances. Because the High-3 salary calculation is the multiplied base of your entire pension formula, even modest salary growth in your final years has compounding long-term value.
Does the FERS Supplement count as earned income?
No. The FERS Supplement itself is not earned income and does not trigger the supplement's own earnings test. However, wages, self-employment income, or consulting fees you earn after retiring can reduce or eliminate the supplement. The supplement phases out at $1 for every $2 earned above the SSA's annual exempt amount. Investment income and rental income are not counted.
Can I work after retiring from federal service?
Yes, with one important caveat before age 62. If you're receiving the FERS Supplement, earned income above the SSA's annual exempt threshold will reduce it. Once the supplement ends at 62, there is no income restriction on your FERS annuity. Re-employment with the federal government in certain cases can also affect your annuity — check OPM guidance if that's a possibility.
When do FERS COLA adjustments begin?
FERS annuity COLAs begin at age 62, regardless of when you retired. If you retire at 57, your pension receives zero inflation protection for five years. Once COLAs begin, FERS retirees receive the full CPI increase if inflation is 2% or less, CPI minus 1 point if between 2%–3%, and a flat 2% if inflation exceeds 3%. This is less generous than the full COLA protection provided to CSRS retirees.
What happens to my FEHB coverage if I retire before 62?
You can carry Federal Employee Health Benefits (FEHB) into retirement as long as you were continuously enrolled (or covered as a family member) for the five years immediately before your retirement date. Retiring at 57 after 30 years nearly always satisfies this requirement. In retirement, FEHB premiums are deducted directly from your annuity and the government continues paying its share of the premium.
What is the difference between FERS and CSRS?
FERS (Federal Employees Retirement System) covers most employees hired after 1983 and features a smaller defined-benefit pension, Social Security, and the Thrift Savings Plan (TSP). CSRS (Civil Service Retirement System) covers employees hired before 1984 and provides a larger pension but no Social Security or government TSP match. If you're reading this article, you almost certainly fall under FERS.

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