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:
- Your base annuity multiplier — 1% per year of service (or 1.1% if you retire at 62+ with 20+ years)
- Your FERS Supplement — available at MRA with 30 years, but subject to an earned income test and it ends at 62 regardless
- Your High-3 average salary — five more years of (likely higher) pay increases your pension base
- 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:
- Age at potential retirement: 57
- Years of service: 30
- High-3 average salary at 57: $112,000
- High-3 average salary at 62 (projected): $121,000
- TSP balance at 57: $420,000
- Annual TSP contributions (if continuing): $23,000/year
- Assumed TSP growth rate: 6% annually
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):
- FERS annuity: $2,800
- FERS Supplement: $1,050
- TSP withdrawals (optional): varies
- Total pension income: ~$3,850/month
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):
- FERS annuity: $3,882
- TSP withdrawals (optional): varies
- Total pension income: ~$3,882/month (pension alone)
Side-by-Side Comparison
| Retire at 57 | Retire at 62 | |
|---|---|---|
| FERS multiplier | 1.0% | 1.1% |
| Years of service | 30 | 35 |
| High-3 salary | $112,000 | $121,000 |
| Monthly annuity | $2,800 | $3,882 |
| FERS Supplement (age 57–62) | $1,050/mo | N/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):
| Age | Retire 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 |
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:
- You have 30 years and MRA eligibility — you've earned it
- The FERS Supplement closes most of the income gap for five years
- The break-even isn't until your mid-to-late 70s
- Five years of your best health is worth something real
The case for waiting until 62:
- The 1.1% multiplier is the best guaranteed investment available to you
- Your High-3 salary is likely higher, further amplifying every year of service
- $272,000 in additional TSP compounding is difficult to replicate
- No earned income restriction — you can consult freely
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.
Join the waitlist to run your scenario →
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?
Is there an early retirement penalty under FERS?
How is the High-3 salary calculated for FERS retirement?
Does the FERS Supplement count as earned income?
Can I work after retiring from federal service?
When do FERS COLA adjustments begin?
What happens to my FEHB coverage if I retire before 62?
What is the difference between FERS and CSRS?
Early Access
See your actual numbers — not a rule of thumb.
FedHorizon models your specific FERS pension, Supplement, and TSP across every retirement scenario. Join the waitlist for early access.
Get Early Access