If you like your federal job but you’re tired, you’re not alone. A lot of people want to slow down without giving up the paycheck, health insurance, and the pension they worked years to earn. That’s where federal phased retirement can help. It’s a “middle path” that lets some employees work part-time while starting to draw part of their FERS pension. It can feel like a gradual federal retirement instead of a cliff.
The tricky part is the math. Your pay changes. Your pension changes. Taxes change. And your TSP and Social Security choices matter too. The fastest way to see your own numbers is to run a side-by-side comparison with the free calculator at IsMyJobWorthIt.com. It helps you spot the tradeoffs before you lock in a plan.
Background: What “Federal Phased Retirement” Really Means
Phased retirement is a program run under OPM rules. It lets eligible federal employees move from full-time to part-time work, while also receiving a partial retirement benefit. Most people talking about this mean FERS phased retirement.
Here’s the basic idea in plain words:
- You keep working, but on a part-time schedule (often 50%).
- You get paid for the hours you work.
- You also get a phased retirement annuity, which is usually 50% of the FERS pension you would have received if you fully retired that day.
- Later, when you fully retire, OPM recalculates your final pension using your added service time.
This is not automatic. Your agency has to approve it, and not every job is a good fit.
Official starting points:
Also, phased retirement touches other big benefits:
- TSP rules and withdrawals: TSP.gov
- Social Security timing: SSA.gov
- Taxes (withholding, pension taxation): IRS.gov
- Medicare decisions later on: CMS.gov
If you’re a military retiree now working as a civilian, phased retirement can still apply to your civilian FERS retirement. Your military retired pay is a separate stream (paid by DFAS): DFAS.
Main Content 1: How FERS Phased Retirement Pay and Pension Work (With Simple Math)
What you get paid during part time federal retirement
In part time federal retirement under phased retirement, you usually have two income pieces:
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Part-time salary
If you go to 50% time, you get about 50% of your basic pay (plus any part-time adjustments for locality, etc., based on your agency’s rules).
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Phased retirement annuity
This is commonly 50% of the annuity you’d get if you retired fully on the start date.
A clear example with real numbers
Let’s say:
- High-3 average pay: $100,000
- Creditable FERS service: 30 years
- You’re eligible for an immediate FERS retirement (example case)
Basic FERS pension estimate (common formula):
- 1% × high-3 × years
= 1% × $100,000 × 30
= $30,000 per year (about $2,500/month) before taxes and insurance.
If you enter phased retirement at 50% time:
- Part-time salary: 50% × $100,000 = $50,000/year
- Phased annuity: about 50% × $30,000 = $15,000/year
So your rough total gross income becomes:
- $50,000 + $15,000 = $65,000/year
That’s less than $100,000, but you also get time back. That’s the trade.
What about FEHB and other benefits?
Many people care most about keeping health insurance. In general, phased retirees can keep FEHB and FEGLI if they meet the usual rules (like being enrolled for the required time). But details can vary by case, so confirm with your HR and OPM guidance at OPM.gov.
If you want more help on benefit basics, you might also like:
Main Content 2: When Gradual Federal Retirement Helps Most (And When It Doesn’t)
Situations where federal phased retirement can be a win
1) You’re burned out but not ready to quit.
Phased retirement can give you a “soft landing.” You work fewer hours but still keep a job identity and a steady check.
2) You want to delay Social Security.
Many people try to wait until age 70 for the bigger Social Security check. Phased retirement income can help cover the gap. Learn timing basics at SSA.gov.
3) You want to reduce TSP withdrawals.
If you can live on part-time pay + partial pension, you may avoid pulling big money from your TSP early. That can help your balance last longer. TSP rules and options are at TSP.gov.
4) You’re a military retiree with a second career.
Example: You did 20 years, retired, and now you’re a GS employee under FERS. Federal phased retirement can let you slow down while still stacking income from:
- Military retired pay (DFAS)
- Part-time civilian pay
- Partial FERS annuity
Situations where it may not be worth it
1) Your agency won’t approve it.
Phased retirement is not a right. It’s an option. Your job has to support a part-time schedule and the mentoring requirements.
2) You need full-time pay.
If your budget is tight, the drop from full-time salary to part-time salary can hurt, even with the partial annuity.
3) You’re close to a better pension multiplier.
Some FERS employees get 1.1% per year instead of 1% if they retire at 62+ with 20+ years. If you’re near that point, the timing matters a lot. Running both paths in IsMyJobWorthIt.com can make the decision much clearer.
For news and real-world stories (not official rules), these can be helpful:
Practical Examples (Real Dollar Scenarios You Can Compare)
Below are three “what if” examples. These are simplified, but they show the moving parts.
Example 1: GS-13 under FERS, 50% schedule
Assume:
- High-3: $120,000
- Service: 25 years
- FERS formula: 1% × high-3 × years
Step 1: Full retirement annuity estimate
1% × $120,000 × 25 = $30,000/year
Step 2: Phased annuity (50%)
50% × $30,000 = $15,000/year
Step 3: Part-time salary (50%)
50% × $120,000 = $60,000/year
Step 4: Total gross during phased retirement
$60,000 + $15,000 = $75,000/year
Why this might help: You cut work in half, but income drops by 37.5%, not 50%.
Example 2: FERS employee deciding between full retirement vs phased for 2 years
Assume:
- High-3: $95,000
- Service now: 29 years
- Considering phased retirement for 2 years at 50% time
If retire now (simple estimate):
- 1% × $95,000 × 29 = $27,550/year
If phased for 2 years:
- Part-time pay: 50% × $95,000 = $47,500/year
- Phased annuity: 50% × $27,550 = $13,775/year
- Total during those 2 years: $47,500 + $13,775 = $61,275/year
Now the “later” part: after 2 years at 50% time, you add about 1 year of full-time equivalent service (because 2 years × 50% = 1 year).
New service credit: 30 years (roughly)
New full retirement annuity estimate later:
- 1% × $95,000 × 30 = $28,500/year
So you gave up some income compared to full-time work, but:
- You got 2 years of lighter schedule
- You still increased your final pension a bit
This is exactly the kind of compare-and-decide problem the calculator at IsMyJobWorthIt.com is good at, because it can help you test “2 years phased” vs “retire now” vs “work full time 2 more years.”
Example 3: Military retiree + GS job (stacking income)
Assume:
- Military retired pay: $2,200/month = $26,400/year (paid by DFAS)
- Civilian high-3: $110,000
- Civilian FERS service: 20 years
- Phased retirement at 50%
Civilian full annuity estimate:
- 1% × $110,000 × 20 = $22,000/year
Phased annuity (50%):
- 50% × $22,000 = $11,000/year
Part-time civilian salary:
- 50% × $110,000 = $55,000/year
Total gross income during phased retirement:
- Military retired pay: $26,400
- Part-time civilian pay: $55,000
- Phased FERS annuity: $11,000
Grand total: $92,400/year
This is why phased retirement can be powerful for some prior-service folks. You can slow down and still have strong cash flow. For military pay questions, the official source is DFAS.
Common Mistakes and Misconceptions (Avoid These)
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“Phased retirement is guaranteed if I qualify.”
Not true. Your agency has to approve it. Staffing needs matter.
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“My pension won’t change later.”
It usually gets recalculated when you fully retire. Your extra service time counts, but part-time time counts differently.
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“I should start Social Security as soon as I go part-time.”
Maybe, maybe not. Starting early can mean a smaller check for life. Check your plan at SSA.gov.
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“TSP will automatically cover the gap.”
TSP withdrawals can raise taxes and reduce future growth. Review options at TSP.gov.
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“FEHB will be the same no matter what.”
Often you can keep FEHB, but the rules are strict. Confirm with HR and OPM.gov.
Step-by-Step: How to Decide if Federal Phased Retirement Fits You
Step 1: Confirm basic eligibility and agency support
- Read the official rules at OPM Phased Retirement
- Ask HR if your agency has a phased retirement policy and process
- Ask if your position can support part-time work and mentoring
Step 2: Gather your numbers (don’t guess)
You’ll want:
- Your estimated high-3
- Your creditable service (years and months)
- Your current salary and locality pay
- Your FEHB plan cost
- Your TSP balance and contribution rate
Step 3: Run side-by-side scenarios
At a minimum, compare:
- Keep working full-time until date X
- Start FERS phased retirement at 50% for 1–3 years, then fully retire
- Fully retire now, and use TSP as needed
The easiest way to do this quickly is IsMyJobWorthIt.com because it forces you to look at the full picture, not just one number.
Step 4: Check the “other systems” that can surprise you
- Taxes and withholding: IRS.gov
- Social Security timing: SSA.gov
- Medicare planning if you’re nearing 65: CMS.gov
Step 5: Put it in writing and pick a date
- Work backward from your target retirement date
- Build a simple budget for the phased period
- Submit the paperwork through your agency process
Key Takeaways / Bottom Line
Federal phased retirement can be a great tool if you want a gradual federal retirement instead of stopping work all at once. You may be able to do part time federal retirement while drawing about half of your FERS pension. The upside is more time and less stress. The downside is lower income than full-time work, plus extra planning.
Before you decide, compare at least three paths: full-time work, phased retirement, and full retirement. Use official sources like OPM.gov and TSP.gov for rules. Then run your personal numbers with IsMyJobWorthIt.com to see what actually happens to your pay, pension, and timeline.