FERS 5-Year Vesting: Refund vs Deferred Retirement

Last Updated: April 15, 2026 Reading Time: 7 min

A thread on r/govfire this week racked up 47 comments on one question: is the FERS pension worth anything after 5 years? The top-voted reply, 36 upvotes, put it bluntly: "It'll be 5% of your high-3, not indexed to inflation, which you'll start collecting at age 62. In other words, jack shit. You'll be better off rolling the FERS contributions into a Roth IRA."

The commenter was right on the bottom line. The math is actually worse.

Key Takeaways

• The Reddit commenter called it correctly on the bottom line, but the math has three hidden costs most feds don't know: no FERS Supplement for deferred retirees, FEHB lost permanently even when the pension starts, and sick leave credit gone.
• For a 37-year-old with 5 years of service and an $80K high-3, the deferred pension pays $4,000/year at 62. In today's dollars, that $4,000 buys roughly $1,908 worth of goods after 25 years of 3% inflation.
• Your refund amount varies dramatically by hire year. Pre-2013 feds get back about $3,200. Post-2014 FERS-FRAE hires get back about $17,600 on the same salary and service. That difference reshapes the entire decision.
• The FERS-FRAE refund invested in a Roth IRA at 7% over 25 years grows to roughly $95,400, producing about $3,816/year tax-free. That outpaces the frozen pension in both nominal and real terms.
• At 5 years, this is not a close call. By 10+ years, the math flips and the pension starts to look real.

What 5-Year Vesting Actually Means

"Vested" in FERS means you have met the minimum service requirement to qualify for a pension. Hit 5 years of creditable civilian service and you cannot be cashed out against your will. You have a right to a deferred annuity.

What it does not mean: the pension pays automatically. You have to apply yourself using form RI 92-19, about 60 days before your pension start date. OPM will not track you down. Feds who leave and forget to apply simply do not get paid.

And "vested" says nothing about how much the pension is worth. That calculation tells a different story.

The Deferred FERS Pension Formula (and the Silent Killer)

The formula is the same as an immediate retirement: 1% x High-3 Average Salary x Years of Service.

For 5 years of service and an $80,000 high-3: 1% x $80,000 x 5 = $4,000/year. That is $333/month. The Reddit comment calling it "5% of your high-3" was math-technically correct (5 years x 1% = 5% total), just framed confusingly.

The real problem is what happens between the day you leave and age 62. Your pension amount is frozen in nominal dollars at the high-3 from your last few years of employment. No inflation adjustment applies during the waiting period.

Run the math at 3% average annual inflation over a 25-year gap (a 37-year-old leaving today):

Point in Time	Nominal Pension	Real Value (2026 dollars)
2026 (you leave)	$4,000	$4,000
2036 (10 years later)	$4,000	~$2,974
2046 (20 years later)	$4,000	~$2,211
2051 (age 62, pension starts)	$4,000	~$1,908

That $4,000 will buy about $1,908 worth of groceries, rent, and healthcare by the time you start collecting. A 52% real-terms decline before you receive a single check.

Even after 62, FERS COLAs get trimmed. When CPI runs above 3%, FERS retirees get CPI minus 1 percentage point. CSRS retirees get the full amount. Over a 20-year retirement, that shortfall can eat another 15-25% of your real purchasing power.

Three Hidden Costs Most Feds Don't Know About

The no-COLA gap is the big one, but three other costs rarely come up in these Reddit threads.

1. No FERS Supplement, full stop. The FERS Annuity Supplement is the bridge payment the government makes to close the income gap between when you retire and when Social Security starts at 62. For many mid-career feds who retire at MRA, that supplement is worth $1,000-$2,000 per month. Deferred retirees get zero. OPM's rules are unambiguous: the supplement is only available with an immediate, unreduced annuity. When your pension starts at 62, you have been collecting Social Security long enough that the supplement no longer matters, but you also cannot access it between MRA and 62 the way an immediate retiree can.

2. FEHB is gone for good. Everyone loses FEHB coverage at separation. That part's normal. But deferred retirees have no path back in. When your pension starts at age 62, you still cannot re-enroll. Not ever. This hits hard if you end up without employer coverage in the private sector or without a spouse's plan. Over a 20-year retirement, the FEHB value you're forfeiting can top $300,000.

One exception worth knowing: MRA+10 postponed retirees, a different category covered below, can reinstate FEHB when their pension starts. Plain deferred retirees cannot.

3. Sick leave credit disappears. Immediate FERS retirees get their unused sick leave added to their service calculation. At the standard 2,087 hours per year conversion, 400 hours of unused sick leave adds roughly 2.5 months of service credit. Deferred retirees get none of that. It is lost at separation.

The Refund Option, and Why Your Hire Year Matters Enormously

If you leave federal service before retiring, you can take your contributions back. File form SF-3106. OPM sends you a check for your employee-side deductions plus any interest earned if you worked more than a year. The government's matching share? That money was never yours. It stays with OPM regardless.

The refund amount looks wildly different depending on when you were hired, because Congress kept raising the employee contribution rate:

Hire Date	Contribution Rate	5 Years x $80K Avg Salary
Before 2013 (original FERS)	0.8%	~$3,200
2013 only (FERS-RAE)	3.1%	~$12,400
2014 and later (FERS-FRAE)	4.4%	~$17,600

If you were hired after 2014, you have been paying into FERS at 4.4% of every paycheck. That adds up fast. On a $80K salary over 5 years, you have contributed roughly $17,600 of your own money to the pension fund.

Taking that $17,600 back and rolling it into a Roth IRA is a fundamentally different conversation than the pre-2013 hire taking back $3,200.

The Numbers Side by Side

Let's put the same scenario through both paths. Person is 37 years old, $80,000 high-3, 5 years of service.

Path A: Keep the deferred pension

Pension at 62: $4,000/year. No COLA between now and then.

Real value at 62 in 2026 dollars: ~$1,908/year.

Also forfeited: FERS Supplement (not applicable as a deferred retiree), FEHB reinstatement (not available), sick leave credit (lost).

Path B: Take the refund and invest

Scenario	Refund	Roth IRA at 7% x 25 yrs	Annual Withdrawal (4%)
Pre-2013 hire (0.8%)	$3,200	~$17,400	~$696/yr tax-free
Post-2014 hire (4.4%)	$17,600	~$95,400	~$3,816/yr tax-free

The post-2014 refund invested in a Roth IRA at 7% annual return grows to about $95,400 by age 62. A 4% annual withdrawal from that balance produces $3,816 per year in real, inflation-adjusted, tax-free income. That beats the frozen $4,000/year pension on every metric: real value, tax treatment, and inflation protection.

The pre-2013 hire's situation is more nuanced. The $3,200 refund does not grow to a meaningful income stream, but the pension is only $4,000/year frozen for 25 years. Neither path is impressive. The inflation erosion argument is identical either way, and the three hidden costs (no supplement, no FEHB, no sick leave) apply regardless of hire year.

Want to run your own numbers? Use our FERS Retirement Calculator to see your exact deferred pension projection, and the High-3 Salary Calculator to confirm your high-3 before modeling both paths.

The Redeposit Pathway (If You Come Back)

The refund isn't necessarily permanent. Come back to federal service and you can buy the time back under Public Law 111-84 (2009).

A redeposit means paying back the original refund plus compound interest, roughly 3.75% annually based on 2024 rates. File form SF-3108 through your HR office while you're still employed. The restored service years count toward your pension as if you never left.

Whether a redeposit makes financial sense depends on how many years you are restoring and your salary at that point. For 5-year redeposits, the math is less compelling than for longer service breaks. Run the breakeven calculation with your HR benefits counselor before committing.

MRA+10 as an Alternative to Plain Deferred

If you have 10 or more years of service and you can time your departure to your Minimum Retirement Age (57 for anyone born after 1969, lower for earlier birth years), there is a third option worth knowing: MRA+10.

MRA+10 lets you start your pension immediately at MRA, though it comes with a 5% per year reduction for every year you are under 62. Alternatively, you can postpone your pension start date to reduce or eliminate that penalty.

The critical difference from plain deferred retirement: MRA+10 postponed retirees can reinstate FEHB when their pension begins. That alone makes MRA+10 postponed almost always better than plain deferred for anyone who qualifies.

	Plain Deferred (5-yr)	MRA+10 Postponed
Minimum service	5 years	10 years at MRA
Pension start	Age 62	Chosen date (up to 62)
FEHB at pension start	No	Yes
FERS Supplement	No	No
Age reduction	None (just wait to 62)	Eliminated if delayed to 62

If you are approaching 10 years of service and considering leaving, check whether you can time your exit to your MRA. That single decision can mean the difference between having or losing FEHB access for the rest of your retirement.

For more on the age and income differences across FERS retirement ages, see our guide on FERS retirement at 57 vs 60 vs 62.

When Refund Wins vs When Deferred Wins

Neither option is always right. Here is a plain-English framework.

The refund tends to win when:

• You have exactly 5 years of service (small pension, long freeze, high purchasing power loss)
• You are in your 30s or early 40s (the 25+ year no-COLA gap is brutal)
• You are a post-2014 FERS-FRAE hire (you have meaningful cash to redeploy)
• You have no plans to return to federal service
• You can put the refund in a Roth IRA and let it grow
• Your TSP balance is already substantial (the pension is a small slice of your retirement picture)

The deferred pension tends to win when:

• You have 10 or more years of service (the pension starts climbing: $80K x 10% = $8,000/year)
• You are in your mid-to-late 40s or 50s (shorter freeze, less erosion)
• You are a pre-2013 hire with a small refund and a matching-size pension
• You may return to federal service (the deferred pension restores automatically on rehire)
• You want a pension floor completely separate from market risk
• You have 20+ years of service (eligible at 60, not 62; 1.1% multiplier may apply)

For context on how FEHB factors into the full retirement picture, read our post on federal benefits misconceptions that cost employees money. And for FERS Supplement details, see FERS Supplement and the earnings limit in 2026.

Calculate Your FERS Deferred Pension

The decision comes down to your specific numbers: years of service, high-3 salary, hire year, and how far you are from age 62. Use our free FERS Retirement Calculator to model your exact deferred pension and compare it against your potential refund invested over time. The calculator accounts for your current salary, years of service, and retirement age to give you a projection you can actually work with.

Frequently Asked Questions

How much is a FERS deferred pension worth after 5 years?

For a $80,000 high-3 salary, the pension is $4,000/year starting at age 62. No inflation adjustment applies between your separation date and age 62, so a 37-year-old leaving today would receive the equivalent of about $1,908 in 2026 dollars when they start collecting 25 years from now. Use the FERS Retirement Calculator to run your specific numbers.

What is the FERS pension refund amount after 5 years?

It depends on when you were hired. Pre-2013 hires contributed 0.8% of pay, netting roughly $3,200 for 5 years at an $80K average salary. Post-2014 FERS-FRAE hires contributed 4.4%, netting roughly $17,600. You receive employee contributions only, plus any interest earned. The government's matching share is not included.

Does a FERS deferred pension adjust for inflation while you wait?

No. The dollar amount is frozen at your high-3 at the time you leave. COLAs begin only after you reach age 62 and start collecting, and even then FERS COLAs are reduced compared to full CPI. A $4,000 annual pension in 2026 dollars will have roughly $1,908 in real purchasing power by 2051 at 3% annual inflation.

Can deferred FERS retirees get the FERS Annuity Supplement?

No. The FERS Supplement is only available to employees who retire with an immediate, unreduced annuity. Deferred retirees are completely excluded, which means no income bridge between MRA and Social Security eligibility at 62.

What happens to FEHB if I take deferred FERS retirement?

You lose FEHB at separation. When your deferred pension starts at age 62, you cannot re-enroll. That access is permanently gone for plain deferred retirees. Only MRA+10 postponed retirees can reinstate FEHB when their pension begins.

Can I take a FERS refund and restore the credit if I return to federal service?

Yes. Under Public Law 111-84 (2009), employees who return to federal service can make a redeposit: the refunded amount plus compound interest at approximately 3.75% annually (2024 rate). File form SF-3108 through your HR office while still employed.

What is MRA+10 and is it better than plain deferred retirement?

MRA+10 is available if you separate at or after your Minimum Retirement Age with 10 or more years of service. The key advantage: if you postpone your pension start date, you can reinstate FEHB when your pension begins. Plain deferred retirees cannot do this. If you have 10+ years and can time your separation to your MRA, MRA+10 postponed is almost always better than plain deferred.

Do I have to apply for my deferred FERS pension, or does OPM notify me?

You must apply yourself using form RI 92-19, about 60 days before your desired pension start date at age 62. OPM will not contact you. Feds who forget to apply simply do not receive payments until they file.

Related Resources

• FERS Retirement Calculator: Model your exact deferred pension and see how it compares to your refund invested
• High-3 Salary Calculator: Calculate your high-3 average salary before running any pension projections
• FERS Retirement at 57 vs 60 vs 62: How the age you retire affects your FERS pension amount
• FERS Supplement and the Earnings Limit in 2026: What you lose if you leave before qualifying for the supplement
• Federal Benefits Misconceptions That Cost Employees Money: Other expensive gaps in how feds understand their benefits

Sources

• OPM Types of Retirement: Official retirement categories and eligibility
• OPM Computation: Pension formula, multipliers, and MRA+10 reduction rules
• OPM COLA FAQ: COLA timing and FERS cap rules
• OPM Former Employees: FEHB loss, survivor benefits, and application process
• OPM Refund FAQ: Refund application process and tax treatment
• 5 CFR § 842.212 via Cornell LII: Regulatory text governing deferred retirement eligibility
• IRS Publication 721: Tax treatment of FERS refunds and rollovers
• PlanWell FP: FERS Refund vs Defer: Worked examples and contribution rate breakdown
• STWServe: FERS Redeposit Part III: Redeposit rules, interest rates, and SF-3108 process
• FedImpact: MRA+10: MRA+10 mechanics and FEHB benefit at pension start
• NARFE: COLA Falls Short: Diet COLA impact on FERS retiree purchasing power