The Reality
Your DoD Benefits Are Often Underestimated, and More Complex Than Any Single Government Resource Explains.
Short answer
DoD civilian retirement is a coordinated system of FERS pension, TSP, FEHB, Social Security, and military service credit. The decisions that drive lifetime income are made in the final months before retirement, and most cannot be reversed.
If you are a DoD civilian employee , your retirement is not built around a single account or a single decision. It is built around a coordinated system of benefits that interact with one another in ways that are rarely explained clearly, not by HR, not by OPM.gov, and not by a generic financial advisor who has never heard of the Thrift Savings Plan matching schedule or the FEHB 5-year rule .
Most federal employees spend 20 or 30 years building a career that entitles them to a substantial retirement package. Then, in the final months before they submit retirement paperwork, they discover how many decisions they wish they had made differently, or how many deadlines they cannot go back and change.
This page is designed to give you a clear, accurate, and honest overview of how DoD retirement benefits work, including the decisions that matter most, the deadlines that cannot be missed, and the places where a second opinion can make a measurable difference.
Ready to review your specific situation?
Schedule a Federal Retirement Strategy Session, 30 minutes, no pressure, no obligation. We will walk through your FERS estimate, TSP balance, and key elections together so you leave with clarity, not more questions.
Schedule a Strategy SessionWhat Makes DoD Different
What Makes Retirement Planning Different for DoD Civilian Employees?
The Department of Defense is the largest federal employer in the United States, with more than 900,000 civilian employees supporting operations across the country and around the world (U.S. Department of Defense, FY2024 Workforce Profile). That scale creates a workforce with career histories that are rarely straightforward.
Many DoD civilians bring prior military service into their federal civilian career. Others have served in overseas assignments, specialized operational roles, or mission-critical positions that raise specific questions about how earnings are calculated under the High-3 average salary formula .
Military-to-civilian transitions
Combining active-duty time with civilian service under FERS or CSRS.
Military service buyback
Decisions that affect both retirement eligibility and pension calculation.
Overseas assignment history
May affect service computation dates (SCD) and benefit elections.
Dual compensation
When retired military pay intersects with civilian federal salary.
Complex service histories
Require careful documentation before submitting retirement paperwork.
Specialized pay structures
Differentials, allowances, and hazard pay that affect the High-3 calculation.
The Real Problem
Your benefits and your financial plan should be one conversation. For many advisors, they're two.
Every resource on this page explains one benefit in isolation. Few explain how they move together, and in retirement, they always move together. The pension election affects the survivor decision. The TSP withdrawal order affects your tax bracket. The FEHB choice affects your Medicare cost for life. Coordinating them is the work, and it's the part a general financial advisor isn't always set up to do.
A general financial advisor
- May treat your TSP as just another account to roll over
- May be less familiar with the FERS Supplement earnings test
- May treat FEHB like ordinary insurance
- May hand you software output
An advisor who focuses on federal retirement
- Coordinates pension, TSP, FEHB/Medicare, and Social Security as one plan
- Works daily with the elections that are permanent the day you retire
- Builds around the decisions common to DoD civilians, buyback, dual comp, the High-3
- Provides a written plan you can understand and act on
FERS Pension
How Is the FERS Pension Calculated for DoD Civilian Employees?
Short answer
The FERS basic annuity equals your High-3 average salary × years of creditable service × 1% (or 1.1% if you retire at age 62 with at least 20 years). Eligibility is most commonly reached at MRA + 30 years, age 60 + 20, or age 62 + 5.
For most DoD civilians hired after January 1, 1984, the Federal Employees Retirement System (FERS) provides the foundation of retirement income. FERS is a three-part system: a lifetime pension, contributions to the Thrift Savings Plan (TSP) , and Social Security benefits.
The FERS Pension Formula
- The multiplier is 1% in most cases
- 1.1% multiplier applies if you retire at age 62 or later with at least 20 years of service
- Your High-3 average salary is the highest average basic pay over any consecutive 36-month period in your career
| Scenario (High-3 $95,000) | Approx. Annual FERS Annuity |
|---|---|
| 28 years of service (1%) | $26,600 |
| 30 years of service (1%) | $28,500 |
| 32 years, age 62+ (1.1%) | $33,440 |
These are meaningful differences, and the gap widens over a 20- or 25-year retirement. Source: U.S. Office of Personnel Management, FERS Computation.
The example provided is hypothetical and for illustrative purposes only. This example does not reflect sales charges or other expenses that may be required for some investments. Rates of return will vary over time, particularly for long term investments.
Military Service Buyback
If you served on active duty before entering civilian federal service, you may be eligible to make a deposit, commonly called a military service buyback , to receive credit for that time toward your FERS retirement . This deposit can move your retirement eligibility date forward and increase your monthly pension.
FERS Retirement Eligibility
MRA + 30 years
Full, immediate pension
Age 60 + 20 years
Full, immediate pension
Age 62 + 5 years
Full, immediate pension (1.1% at 62 + 20)
MRA + 10 years
Immediate pension with 5%/year reduction under 62
Early retirement options, including Voluntary Early Retirement Authority (VERA) and Discontinued Service Retirement, may also be available depending on agency authorization.
Special Retirement Supplement (SRS)
If you retire before age 62 and meet eligibility requirements, you may receive the Special Retirement Supplement (SRS) . This is a temporary payment designed to approximate the Social Security benefit you have earned until you reach age 62. It is subject to an earnings test and ends at 62 regardless of whether you claim Social Security at that point.
Thrift Savings Plan
How Should DoD Employees Approach Their Thrift Savings Plan (TSP)?
Short answer
Contribute at least 5% of salary to capture the full FERS agency match. The 2026 elective deferral limit is $24,500 , with an $8,000 catch-up at age 50+ and $11,250 for ages 60–63. RMDs begin at age 73 on Traditional TSP balances.
The Thrift Savings Plan (TSP) is the federal government's defined contribution retirement plan, comparable to a 401(k), but with lower administrative fees and a straightforward fund lineup. For most DoD civilians, TSP accumulation represents their largest pool of flexible retirement assets.
2026 Contribution Limits and Agency Matching
$24,500
IRS elective deferral limit (2026)
$8,000
Catch-up at age 50+
$11,250
Catch-up for ages 60–63 (SECURE 2.0)
Source: IRS Notice on 2026 retirement plan limits; TSP.gov contribution limits.
Under FERS, the government matches your contributions dollar-for-dollar on the first 3% of salary, and 50 cents on the dollar for the next 2%. Contributions below the matching threshold leave government money on the table permanently.
Beginning in 2026, if your prior-year FICA wages exceeded $150,000, your catch-up contributions must be made as Roth.
Traditional TSP vs. Roth TSP
Traditional TSP
Contributions are pre-tax, reducing your taxable income today. Withdrawals in retirement are taxed as ordinary income.
Roth TSP
Contributions are made after tax. Qualified withdrawals in retirement, including earnings, are tax-free under IRS rules, provided the 5-year holding requirement and a qualifying event (age 59½, disability, or death) are met.
As of January 2026, the TSP supports in-plan Roth conversions , making it possible to convert Traditional TSP balances to Roth TSP without first moving funds outside the plan. For employees approaching retirement with significant TSP balances, in-plan conversions during the window between retirement and age 73, when Required Minimum Distributions begin, can be an effective tax strategy.
Converting from a traditional IRA or pre-tax retirement plan to a Roth account is a taxable event. Distributions from traditional IRAs and employer-sponsored retirement plans are taxed as ordinary income and, if taken prior to reaching age 59½, may be subject to an additional 10% IRS tax penalty.
TSP Withdrawals and Required Minimum Distributions
Once you separate from federal service, several TSP withdrawal options become available: partial withdrawals, installment payments, full distributions, and annuity purchases. Each carries different tax implications and flexibility trade-offs.
Health Coverage
What Should DoD Employees Know About FEHB in Retirement?
Short answer
To carry FEHB into retirement you must be enrolled in the program for the 5 years immediately preceding retirement ; this rule has no exception process. At age 65 the Medicare Part B decision interacts with your FEHB plan and affects lifetime cost.
The Federal Employees Health Benefits (FEHB) program is a valuable, often misunderstood component of federal retirement. Unlike most private-sector health benefits, FEHB can continue into retirement with the government still contributing to the premium. For many DoD retirees, this can represent tens of thousands of dollars over a retirement lifetime.
Non-Negotiable
The 5-Year Enrollment Rule
To carry FEHB coverage into retirement , you must have been continuously enrolled in the program for the five years immediately preceding your retirement date, or since your first opportunity to enroll if that is less than five years. This is one of the few retirement rules with no exception process.
FEHB and Medicare Coordination
At age 65, most federal retirees become eligible for Medicare . The decision about whether to enroll in Medicare Part B is not automatic and not simple. Many FEHB plans reduce their cost-sharing significantly when a member has Medicare Part B as primary coverage; other plans provide less benefit from the coordination.
FEHB Survivor Coverage
To allow your spouse to continue FEHB coverage after your passing, a survivor annuity must generally be in place. Without the survivor annuity election, your spouse loses FEHB eligibility when you die.
Survivor Benefits
How Do Survivor Benefits Work for DoD Civilian Employees?
Short answer
A FERS survivor election is made once, at retirement , and cannot be changed afterward. A full survivor benefit pays your spouse 50% of your pension for life and reduces your annuity by about 10%. Without it, FEHB coverage for your spouse also ends at your death.
Under FERS, you may elect a survivor annuity for your spouse at the time of retirement. This decision is permanent, it cannot be changed after your retirement begins. Electing a survivor benefit reduces your own monthly pension during retirement, but provides continued income to your spouse after your death.
Survivor Annuity Options and Cost
| Election | To Spouse | Cost to Your Annuity |
|---|---|---|
| Full | 50% | ~10% reduction |
| Partial | 25% | ~5% reduction |
| None | $0 | No reduction (no spousal income) |
For a DoD employee with a $2,500 monthly pension, the full survivor election costs approximately $250 per month. Whether that trade-off is appropriate depends on your spouse's own income, life expectancy considerations, and other assets. There is no universal answer.
The example provided is hypothetical and for illustrative purposes only. This example does not reflect sales charges or other expenses that may be required for some investments. Rates of return will vary over time, particularly for long term investments. Source: U.S. Office of Personnel Management, FERS Survivor Benefits.
TSP Beneficiary Designations
Your TSP account is distributed according to your TSP beneficiary designations , not your will. Review and update these designations regularly, particularly after marriage, divorce, or a family death.
Tax Strategy
What Tax Considerations Should DoD Employees Evaluate Before Retirement?
Short answer
FERS pension and Traditional TSP withdrawals are taxed as ordinary federal income; Roth TSP qualified withdrawals are tax-free; up to 85% of Social Security may be taxable. The window between retirement and age 73 is often the lowest-bracket period of a federal retiree's life.
Federal retirement income for DoD civilian employees typically comes from three or four distinct sources, each taxed differently. Understanding how these interact is an important step to take in the years before retirement.
How Each Income Source Is Taxed
FERS pension
Ordinary federal income tax. A small after-tax portion may be returned tax-free using the Simplified Method.
Traditional TSP withdrawals
Taxed as ordinary income at your marginal rate in the year of withdrawal.
Roth TSP withdrawals
Qualified distributions are federal income tax-free.
Social Security benefits
Up to 85% may be taxable if combined income exceeds $34,000 (single) or $44,000 (married filing jointly). Source: SSA, Income Taxes And Your Social Security Benefit.
The Roth Conversion Window
The period between your federal retirement date and age 73, when Required Minimum Distributions begin, is often the lowest tax bracket of a federal retiree's life. Before Social Security and RMDs layer on top, there may be room in lower tax brackets to convert Traditional TSP or IRA funds to Roth accounts.
Distributions from traditional IRAs and employer-sponsored retirement plans are taxed as ordinary income and, if taken prior to reaching age 59½, may be subject to an additional 10% IRS tax penalty. Converting from a traditional IRA to a Roth IRA is a taxable event. Qualified Roth distributions require a 5-year holding period and a qualifying event (age 59½, disability, or death).
State Tax Considerations
State tax treatment of federal retirement income varies significantly. As of 2026, approximately nine states impose no broad-based income tax at all, and several others fully exempt federal pension income from state taxation. For DoD employees who relocate in retirement, state tax can represent a meaningful variable in long-term income planning. Source: Tax Foundation, State Individual Income Tax Rates.
Take the next step
Schedule Your Federal Retirement Strategy Session
30 minutes with someone who understands DoD benefits specifically. Bring your FERS estimate, your TSP balance, and your questions, leave with clarity.
The People Behind the Plan
You'll work with an advisor who focuses on federal retirement every day.
Micah Shilanski, CFP®
Partner at Shilanski & Associates and a CERTIFIED FINANCIAL PLANNER™ professional. Micah focuses his practice on federal employee retirement planning and co-hosts the Plan Your Federal Retirement® podcast.
How We Help
How We Help Department of Defense Employees Prepare for Retirement
At Plan Your Federal Retirement, we focus exclusively on federal retirement education and structured planning conversations. We have worked with DoD civilian employees, transitioning service members, and federal retirees across career stages , from employees who are 10 years out to those who are 60 days from their retirement date and need to confirm their elections are correct.
We are not affiliated with the Department of Defense or any federal agency. We are upfront about how we are compensated. Before any work begins, we explain exactly how our fees work so you can decide whether the relationship makes sense for your situation.
What a Strategy Session Covers
-
1
Review your projected monthly pension
So you know what your actual FERS benefit estimate looks like, not an approximation.
-
2
Map your earliest eligibility date
Including how military service credit, MRA rules, and the Special Retirement Supplement affect your specific timeline.
-
3
Look at your income, and your tax picture, year by year
Including TSP withdrawal sequencing and tax bracket management across pension, TSP, and Social Security.
-
4
Walk through the three permanent decisions
Survivor benefit, FEHB-to-Medicare coordination, and military buyback, the elections that are permanent once retirement begins.
-
5
Surface the deadlines that are easy to miss
Military buyback timelines, FEHB enrollment status, and TSP beneficiary designations.
FAQ
Frequently Asked Questions About DoD Retirement
When can DoD civilian employees retire under FERS?
Eligibility depends on your age and years of creditable service. The most common pathways are: MRA with 30 years , age 60 with 20 years , or age 62 with at least 5 years . Your Minimum Retirement Age is between 55 and 57 depending on your birth year.
Can I buy back my military service time?
In most cases, yes. The deposit is calculated based on your military earnings and accrues interest over time, so earlier is generally better. Completing a military service buyback can increase your total years of creditable service and increase your monthly pension.
How is the FERS pension taxed?
FERS pension income is taxed as ordinary income at the federal level. A small portion, representing your employee contributions made with after-tax dollars, may be returned tax-free over time using the IRS Simplified Method. State tax treatment varies.
Can I keep FEHB after retirement?
Yes, if you have been continuously enrolled in FEHB for the five years immediately before retirement. This requirement has no exception process.
What happens to my TSP when I retire?
Your TSP account remains yours after you leave federal service. You can keep the funds in the TSP, begin taking withdrawals, roll the account into an IRA, or choose a combination.
Should I roll my TSP into an IRA?
Not automatically. The TSP has among the lowest administrative fees of any retirement account available. A clear answer depends on your goals, fee tolerance, income strategy, and tax circumstances.
What is the Special Retirement Supplement?
The SRS is a temporary benefit paid to eligible FERS retirees who retire before age 62. It approximates a portion of your earned Social Security benefit, is subject to an earnings test, and ends at age 62.
How does Social Security coordinate with my FERS pension?
Your Social Security benefits and FERS pension are separate income sources you receive concurrently. When you claim Social Security can affect your total lifetime income and tax exposure meaningfully.
Does retiring before 62 reduce my FERS pension?
It depends on your eligibility category. Under the MRA+10 provision , your pension is reduced by 5% for each year you are under age 62, a 25% reduction at 57. Other categories do not carry this reduction.
Is the FERS pension enough to live on?
For most DoD employees, the FERS pension provides a meaningful and predictable income floor, but it is designed as one component of a three-part system alongside TSP and Social Security.
Is Plan Your Federal Retirement affiliated with the Department of Defense?
No. We are an independent financial services firm and are not affiliated with, endorsed by, or approved by the U.S. Department of Defense or any federal agency.
Within 10 Years of Retirement?
This conversation is worth having.
- Within 10 years of your target retirement date and want to understand your projected income
- Actively evaluating your retirement date and weighing timing trade-offs
- Recently retired and reviewing your income sequencing and tax strategy
- Uncertain about a specific election, survivor benefit, FEHB continuity, military buyback
Sources & Further Reading
References
The information on this page is drawn from official U.S. government publications and recognized policy resources. We encourage you to verify any rule that applies to your situation directly with the issuing agency.
- 01. U.S. Office of Personnel Management. (n.d.). FERS information: Computation . Retrieved from www.opm.gov/retirement-center/fers-information/computation/
- 02. U.S. Office of Personnel Management. (n.d.). FERS information: Eligibility . Retrieved from www.opm.gov/retirement-center/fers-information/eligibility/
- 03. U.S. Office of Personnel Management. (n.d.). Creditable service for FERS . Retrieved from www.opm.gov/retirement-center/fers-information/creditable-service/
- 04. Federal Retirement Thrift Investment Board. (2025). Contribution limits . Thrift Savings Plan. Retrieved from www.tsp.gov/making-contributions/contribution-limits/
- 05. Federal Retirement Thrift Investment Board. (n.d.). Agency and service contributions . Thrift Savings Plan. Retrieved from www.tsp.gov/making-contributions/contribution-types/
- 06. U.S. Office of Personnel Management. (n.d.). Federal Employees Health Benefits (FEHB) handbook . Retrieved from www.opm.gov/healthcare-insurance/healthcare/reference-materials/reference/federal-employees-health-benefits-fehb-handbook/
- 07. U.S. Office of Personnel Management. (n.d.). Medicare and FEHB . Retrieved from www.opm.gov/healthcare-insurance/healthcare/medicare/
- 08. U.S. Office of Personnel Management. (n.d.). Survivor benefits under FERS . Retrieved from www.opm.gov/retirement-center/fers-information/survivors/
- 09. U.S. Office of Personnel Management. (n.d.). Military service credit deposit . Retrieved from www.opm.gov/retirement-center/fers-information/military-retired-pay/
- 10. Internal Revenue Service. (n.d.). Retirement plan and IRA required minimum distributions FAQs . Retrieved from www.irs.gov/retirement-plans/retirement-plan-and-ira-required-minimum-distributions-faqs
- 11. Social Security Administration. (n.d.). Income taxes and your Social Security benefit . Retrieved from www.ssa.gov/benefits/retirement/planner/taxes.html
- 12. U.S. Department of Defense. (2024). Civilian workforce profile . Office of the Under Secretary of Defense for Personnel and Readiness. Retrieved from www.dcpas.osd.mil/
- 13. Tax Foundation. (2026). State individual income tax rates and brackets . Retrieved from taxfoundation.org/data/all/state/state-income-tax-rates/
External links open in a new tab. References are formatted per APA 7th edition.