Retirement pay for a lieutenant colonel (Lt Col) represents one of the most consequential financial decisions of a military career. According to the Department of Defense's 2024 Military Compensation Report, an O-5 retiring at 20 years of service receives a base pension that many financial planners value at well over $1.5 million in lifetime equivalent value.
Understanding your lt col retirement pay requires careful attention to system rules, service dates, and tax implications.
The challenge most officers face is navigating three competing retirement systems, understanding how disability ratings interact with longevity pay, and calculating taxes correctly. A single miscalculation can cost tens of thousands of dollars over a retirement lifetime.
This guide breaks down exactly how Lt Col retirement pay works under each system, what factors move the needle most, and the specific steps you can take today to maximize your benefit.
What Determines Lt Col Retirement Pay
Your retirement pay as a lieutenant colonel depends primarily on three variables: which retirement system you fall under, your years of creditable service, and your High-36 average base pay. These factors interact in ways that surprise many retiring officers. Getting your lt col retirement pay calculation right starts with understanding which system governs your benefit.
The Three Retirement Systems
The military has operated three distinct retirement systems since 1980. Which one applies to you depends on your Date of Initial Entry into Military Service (DIEMS).
- Final Pay: For those who entered before September 8, 1980. Your pension equals 50% of your final base pay at 20 years, plus 2.5% per additional year.
- High-36: For those who entered between September 8, 1980, and December 31, 2017. Your pension uses the average of your highest 36 months of base pay.
- Blended Retirement System (BRS): For those who entered on or after January 1, 2018, or who opted in during 2018. The multiplier drops to 2.0% per year, but you receive government matching contributions to your Thrift Savings Plan.
The Defense Finance and Accounting Service (DFAS) publishes current pay tables that show an O-5 at 20 years earns a base pay that shifts annually with cost-of-living adjustments. Your retirement calculation always starts from that base pay figure. Each system produces a different lt col retirement pay outcome, so knowing your DIEMS date is essential.
How to apply this: Log into MyPay and confirm your DIEMS date is correct. This single date determines which formula applies to your entire retirement calculation.
How the High-36 Calculation Actually Works
For most current lieutenant colonels, the High-36 system governs their retirement pay. The formula is straightforward, but the inputs require careful verification. Your lt col retirement pay under this system depends on two numbers you can verify before retiring.
The calculation multiplies your years of creditable service by 2.5%, then applies that percentage to your High-36 average base pay. At exactly 20 years, you receive 50% of your High-36 average. At 24 years, you receive 60%.
Your High-36 average is not simply your last three years of pay. It is the average of the 36 highest-paying months of your entire career, which for most officers are their final 36 months. However, if you took a reduction in grade or served in a role with special pays that affected base pay, your highest months might fall earlier.

Creditable service includes active duty time, certain reserve points converted to active duty equivalents, and academy time under specific conditions. Medical school time and some other training periods may not count unless you completed them under a contract that specifies creditable service. Reviewing these inputs carefully protects the accuracy of your lt col retirement pay.
How to apply this: Request a Retirement Points Statement (for reservists) or review your active duty service record through the Personnel Records Review system at least 24 months before your target retirement date. Correcting errors takes time.
Disability Ratings and Lt Col Retirement Pay
Many retiring lieutenant colonels qualify for both longevity retirement and VA disability compensation. Understanding how these interact prevents costly mistakes. Your lt col retirement pay can be significantly enhanced when disability benefits are properly coordinated.
Concurrent Retirement and Disability Pay (CRDP)
If your VA disability rating is 50% or higher, you qualify for Concurrent Retirement and Disability Pay. This means you receive your full longevity retirement pay from DFAS plus your full VA disability compensation. There is no offset.
Combat-Related Special Compensation (CRSC)
If your disability stems from combat-related conditions, you may qualify for CRSC even if your VA rating is below 50%. CRSC restores some or all of the retirement pay that would otherwise be offset. The Military Order of the Purple Heart provides a detailed guide on CRSC eligibility that many officers find helpful during the application process.
The VA disability rating itself does not change your retirement pay formula. It adds a separate, tax-free payment stream. A 70% VA rating for a lieutenant colonel can add a significant monthly amount that is entirely exempt from federal income tax. Maximizing your lt col retirement pay often means pursuing both longevity pension and disability compensation.
How to apply this: File your VA disability claim through the Benefits Delivery at Discharge (BDD) program 180 to 90 days before separation. This expedites your rating decision and reduces the gap between separation and receiving disability compensation.
Taxes and Withholding on Your Pension
Your Lt Col retirement pay is subject to federal income tax withholding, and depending on your state of residence, possibly state income tax as well. Planning for this before you retire prevents a surprise tax bill. Effective tax planning around your lt col retirement pay starts while you are still on active duty.
DFAS withholds federal taxes based on the W-4P form you submit. You can adjust this at any time through MyPay. Many retiring officers under-withhold during their first year because they do not account for the loss of tax-free allowances like BAH and BAS.
State tax treatment varies widely. States like Texas, Florida, and Nevada do not tax military retirement pay at all. Others offer partial exemptions. The DFAS Retired Military Pay page maintains current information on state tax withholding requirements and forms.

Social Security and Medicare taxes are not withheld from military retirement pay. However, if you take a civilian job after retirement, those wages will be subject to FICA taxes, which can push you into a higher effective tax bracket than you experienced on active duty. Understanding how taxes affect your lt col retirement pay helps you plan withholdings accurately.
How to apply this: Use the IRS Tax Withholding Estimator in your first month of retirement to check whether your DFAS withholding is adequate. Adjust your W-4P immediately if the estimator shows a shortfall.
Survivor Benefit Plan and Lt Col Retirement Pay
The Survivor Benefit Plan (SBP) is the single most important decision you will make alongside your retirement pay election. It provides up to 55% of your retirement pay to your surviving spouse or designated beneficiary after your death. Your lt col retirement pay election directly determines what your survivor will receive.
SBP premiums are deducted from your gross retirement pay before taxes, which reduces your taxable income. The premium is 6.5% of the base amount you elect to cover. For a lieutenant colonel, this typically represents a meaningful monthly deduction.
You can elect full coverage, reduced coverage, or decline SBP entirely. If you are married, declining requires your spouse's notarized written consent. The default election if you do nothing is full spouse coverage.
The key tradeoff: SBP premiums reduce your monthly retirement pay today, but they guarantee a lifetime income stream for your survivor. The Military Compensation SBP page explains the election options and deadlines in detail. Protecting your lt col retirement pay for your family's future often means accepting the SBP premium cost.
How to apply this: Schedule a meeting with a financial counselor at your installation's Military and Family Support Center before your retirement date. They can model different SBP election scenarios using your actual pay figures.
Comparison: Retirement Systems at 20 Years for an O-5
| System | Multiplier at 20 Years | Key Feature | Action to Take |
|---|---|---|---|
| Final Pay | 50% of final base pay | No averaging, uses last month's pay | Verify DIEMS date on MyPay |
| High-36 | 50% of High-36 average | Averages highest 36 months | Request pay history review |
| BRS | 40% of High-36 average | Includes TSP matching and continuation pay | Check TSP contribution rate |
| Disability (50%+ VA) | Adds tax-free payment | No offset with CRDP | File BDD claim before separation |
| CRSC | Restores offset pay | Combat-related conditions only | Submit DD Form 2860 |
Each row above represents a different path to maximizing your lt col retirement pay depending on your individual circumstances.
Frequently Asked Questions About lt col retirement pay
How does a reserve lieutenant colonel's retirement pay differ from active duty?
A reserve O-5 uses a point-based system rather than years of service. You accumulate retirement points through drills, annual training, and active duty periods. Your retirement pay begins at age 60, or earlier if you qualify for reduced-age retirement under certain mobilization authorities. The calculation divides your total points by 360 to determine equivalent years of service.
Reserve lt col retirement pay calculations require careful tracking of all retirement points throughout your career.

Can I receive lt col retirement pay and VA disability at the same time?
Yes, if your VA rating is 50% or higher, you receive both payments in full through Concurrent Retirement and Disability Pay. Below 50%, your retirement pay is reduced dollar-for-dollar by the amount of VA disability compensation you receive. Combat-related conditions may qualify for CRSC, which restores the offset regardless of rating percentage.
Coordinating these benefits properly ensures you receive the maximum lt col retirement pay available to you.
What happens to my lt col retirement pay if I take a federal civilian job?
Your military retirement pay continues without reduction if you take a federal civilian position. However, you cannot count your military service toward both your military pension and your civilian FERS pension unless you make a military service deposit. This deposit buys back your military time for FERS credit and is typically worth it for officers retiring at 20 years.
Your lt col retirement pay remains a stable income source regardless of your civilian employment choices.
How does divorce affect lt col retirement pay?
State courts can divide military retirement pay as marital property under the Uniformed Services Former Spouses' Protection Act. A former spouse may receive up to 50% of your disposable retirement pay if the marriage overlapped at least 10 years of creditable service. DFAS will honor a properly drafted court order that meets the requirements in the law.
Understanding how divorce affects lt col retirement pay is essential for financial planning after separation.
When does my first lt col retirement pay check arrive?
Your first retirement payment typically arrives 30 to 45 days after your official retirement date. DFAS processes your retirement account once your final DD Form 214 is submitted and your pay record is audited.
To bridge the gap, many officers set aside 2 to 3 months of living expenses before their retirement date, since your final active duty paycheck also undergoes a separate audit. Planning for the timing of your first lt col retirement pay check prevents cash flow gaps.
Conclusion
Retirement pay for a lieutenant colonel is a substantial financial asset that rewards careful planning and early verification. Your lt col retirement pay represents decades of service and deserves the same attention you gave your military career.
- Your DIEMS date locks in which retirement formula applies — confirm it now
- High-36 averages your best 36 months, not necessarily your last 36
- VA disability of 50% or higher means full concurrent receipt with no offset
- SBP is a permanent election that affects your survivor's lifetime income
- Tax planning before retirement prevents under-withholding surprises
The next step is to pull your personnel records, verify your service dates, and schedule a retirement counseling session. Every month you delay verification is a month that errors can compound. Start with MyPay today.





