Key Takeaways
- Four retirement systems exist based on your Date of Initial Entry into Military Service (DIEMS)
- High-36 (Legacy) pays 2.5% × years of service × average of highest 36 months of base pay
- BRS pays 2.0% × years of service, plus TSP matching up to 5% of base pay
- 20 years minimum service required for a military pension (medical retirement excepted)
- 2026 COLA is 2.8%, applied to all military retirement pay
- Your pension grows with annual COLA adjustments throughout retirement
Table of Contents
- Military Pension Calculator
- How to Use This Calculator
- Which Retirement System Applies to You?
- High-36 (Legacy) System
- Blended Retirement System (BRS)
- REDUX System
- Final Pay System
- How to Maximize Your Military Pension
- Frequently Asked Questions
Military Pension Calculator
Use this calculator to estimate your military retirement pay. Enter your information below to see your projected monthly and annual pension, plus a 20-year projection showing how your retirement income grows with cost-of-living adjustments (COLA).
BRS Total Retirement Income (Pension + TSP)
Your Calculation:
20-Year Retirement Income Projection (with 2.5% avg. COLA)
How Your Pension Compares Across Systems
| System | Multiplier | Monthly Pension | Annual Pension |
|---|
* BRS total includes estimated TSP withdrawals. REDUX reflects reduced multiplier (age-62 catch-up not shown).
This calculator provides estimates only. Actual retirement pay may vary based on exact service dates, pay history, and other factors. For official calculations, use the DoD retirement calculators or contact your branch’s retirement services office.
How to Use This Calculator
To get the most accurate estimate of your military pension, you’ll need a few pieces of information:
1. Determine your retirement system. Your Date of Initial Entry into Military Service (DIEMS) determines which system applies to you. Check your Leave and Earnings Statement (LES) or contact your personnel office if you’re unsure. See the retirement systems section below for details.
2. Estimate your years of service at retirement. You need at least 20 years of creditable service to qualify for a military pension (with exceptions for medical retirement). More years means a higher multiplier and larger pension.
3. Calculate your High-36 average. This is the average of your base pay for your highest 36 consecutive months of service—typically your last three years before retirement. Add up 36 months of base pay and divide by 36. Don’t include BAH, BAS, or special pays—only base pay counts toward your pension calculation.
4. For BRS members: Estimate your TSP balance at retirement. The calculator will show how TSP withdrawals supplement your reduced pension under the Blended Retirement System.
Which Retirement System Applies to You?
There are four military retirement systems. Your Date of Initial Entry into Military Service (DIEMS) determines which one applies to you—this date doesn’t change even if you leave and rejoin the military.
| Date of Initial Entry | Retirement System | Multiplier |
|---|---|---|
| Before Sept. 8, 1980 | Final Pay | 2.5% per year |
| Sept. 8, 1980 – July 31, 1986 | High-36 (High-3) | 2.5% per year |
| Aug. 1, 1986 – Dec. 31, 2017 | High-36 or REDUX* | 2.5% (or reduced) |
| Jan. 1, 2018 – Present | Blended Retirement System (BRS) | 2.0% per year |
*Service members who entered between Aug. 1, 1986 and Dec. 31, 2017 could choose REDUX (with $30,000 Career Status Bonus at 15 years) or remain under High-36. If you took the bonus, you’re under REDUX; if you declined it, you’re under High-36.
High-36 (Legacy) Retirement System
The High-36 system—also called “High-3″—is the most common legacy retirement system. It applies to service members who entered between September 8, 1980 and December 31, 2017 (who didn’t opt into BRS or take the REDUX bonus).
High-36 Formula
The “High-36” refers to the average of your highest 36 consecutive months of base pay. For most retirees, this is their final three years of service when they’re at their highest rank and longevity.
High-36 Multiplier Table
| Years | Multiplier | Years | Multiplier |
|---|---|---|---|
| 20 | 50% | 26 | 65% |
| 21 | 52.5% | 27 | 67.5% |
| 22 | 55% | 28 | 70% |
| 23 | 57.5% | 29 | 72.5% |
| 24 | 60% | 30 | 75% |
| 25 | 62.5% | 30+ | 75% max |
High-36 Example Calculation
Scenario: An E-7 retires after 24 years with a High-36 average of $5,800/month.
- Multiplier: 24 years × 2.5% = 60%
- Monthly pension: $5,800 × 60% = $3,480/month
- Annual pension: $3,480 × 12 = $41,760/year
For a complete breakdown of the High-36 system, including COLA history and tax implications, see our Military Retirement Pay 2026 Guide.
Blended Retirement System (BRS)
The Blended Retirement System applies to all service members who entered on or after January 1, 2018, plus those who opted in during the 2018 enrollment window. BRS “blends” a reduced pension with government contributions to your Thrift Savings Plan (TSP).
BRS Components
1. Defined Benefit (Pension)
Notice the multiplier is 2.0% per year (not 2.5%), resulting in a 40% pension at 20 years instead of 50%.
2. TSP Matching
- Automatic 1%: The government contributes 1% of your base pay to your TSP regardless of whether you contribute anything
- Matching up to 4%: If you contribute at least 5% of your base pay, the government matches up to 4% more
- Maximum government contribution: 5% of your base pay (1% automatic + 4% match)
3. Continuation Pay
A one-time bonus at your 12-year mark (typically 2.5× to 13× monthly base pay, depending on branch and specialty) in exchange for a 4-year service commitment.
BRS vs. High-36: Key Differences
| Feature | High-36 | BRS |
|---|---|---|
| Pension multiplier | 2.5% per year | 2.0% per year |
| 20-year pension | 50% of High-36 | 40% of High-36 |
| TSP matching | None | Up to 5% |
| Continuation pay | No | Yes (at 12 years) |
| Benefits if <20 years | None | Keep TSP contributions |
| Lump sum option | No | Yes (25% or 50%) |
The BRS trade-off: You receive a smaller pension, but the TSP matching (if you contribute 5% throughout your career) can potentially offset or exceed the difference—especially if you invest in the higher-return TSP funds. Additionally, if you leave before 20 years, you keep your TSP contributions and matching, whereas under High-36 you’d walk away with nothing.
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For more on maximizing your TSP, see our Military TSP Guide 2026.
REDUX Retirement System
REDUX applies to service members who entered between August 1, 1986 and December 31, 2017 AND chose to accept the $30,000 Career Status Bonus (CSB) at their 15-year mark. If you took the bonus, you’re under REDUX; if you declined it, you remained under High-36.
REDUX Penalties
- Reduced multiplier: The pension multiplier is reduced by 1 percentage point for each year under 30 years of service at retirement
- Reduced COLA: Annual COLA is CPI minus 1 percentage point (so 2026’s 2.8% COLA becomes 1.8% for REDUX retirees)
- Age-62 catch-up: At age 62, your pension is recalculated to what it would have been under High-36, but the reduced COLA then resumes
REDUX Example
For a 20-year retirement:
- High-36: 20 × 2.5% = 50% multiplier
- REDUX: 50% − 10% (penalty for 10 years under 30) = 40% multiplier
Most financial analyses show that declining the $30,000 CSB and remaining under High-36 was the better long-term choice for those who served 20+ years. The bonus rarely compensated for the lifetime reduction in pension and COLA.
TRENDING: See Today’s VA Loan Rates
Final Pay Retirement System
The Final Pay system applies only to service members who entered before September 8, 1980. Very few active-duty members remain under this system today.
Final Pay Formula
The key difference from High-36: retirement is calculated using your final base pay at retirement, not the 36-month average. This typically results in a slightly higher pension since it uses your peak pay rather than an average.
How to Maximize Your Military Pension
While you can’t change which retirement system applies to you, there are several strategies to maximize your retirement income:
1. Serve longer if possible. Each additional year adds 2.0-2.5% to your multiplier. The difference between retiring at 20 years (50% under High-36) versus 24 years (60%) is significant over a 30+ year retirement.
2. Pursue promotions. Higher rank means higher base pay, which directly increases your High-36 average and your pension. An E-8 retiring at 24 years will have a substantially larger pension than an E-7 with the same time in service.
3. Maximize TSP contributions. Whether you’re under BRS (with matching) or a legacy system (no matching), TSP contributions grow tax-advantaged and supplement your pension. Aim to contribute at least 5% to capture the full BRS match if applicable.
4. Consider the Survivor Benefit Plan (SBP). SBP ensures your spouse or dependents receive 55% of your retirement pay if you pass away. While it costs 6.5% of your pension, it provides guaranteed lifetime income for your survivors. Learn more in our Survivor Benefit Plan Guide.
5. Understand CRSC and CRDP. If you have a VA disability rating, you may qualify for Concurrent Retirement and Disability Pay (CRDP) or Combat-Related Special Compensation (CRSC), which can restore some or all of the VA offset. See our CRSC vs CRDP Guide for details.
6. Choose your retirement state wisely. Some states fully exempt military retirement pay from state income tax, while others tax it fully. This can mean thousands of dollars in savings annually. Check our State Veteran Benefits pages for tax details by state.
Frequently Asked Questions
You need at least 20 years of creditable service to qualify for a military retirement pension. The exception is medical retirement—if you’re found medically unfit for duty with a DoD disability rating of at least 30%, you may qualify for medical retirement even without 20 years of service.
Reserve component members use a different calculation based on retirement points rather than years of service. You need 20 “good years” (years with at least 50 retirement points) to qualify, but you don’t receive retired pay until age 60 (or earlier if you have qualifying active duty service under the Early Retirement provision).
Military retirement pay is subject to federal income tax. State tax treatment varies—some states fully exempt military retirement pay, while others tax it partially or fully. VA disability compensation is always tax-free at both federal and state levels.
Yes. Military retirement pay and Social Security are completely separate benefits with no offset or reduction between them. You can (and should) collect both. However, your combined income may affect the taxation of your Social Security benefits.
The 2026 cost-of-living adjustment (COLA) is 2.8% for most military retirees. REDUX retirees receive 1.8% (CPI minus 1%). The COLA was applied to December 2025 entitlements, typically paid around January 1, 2026.
This calculator provides estimates based on the standard retirement formulas. Actual retirement pay may vary based on exact service dates, pay history, disability ratings, and other factors. For official calculations, use the DoD retirement calculators or contact your branch’s retirement services office.
Your High-36 is the average of your highest 36 consecutive months of base pay. You can estimate this by looking at the base pay tables for your rank over your final three years, or by reviewing your Leave and Earnings Statements (LES). Your finance office can provide an official calculation as you approach retirement.
Related Resources:
- 2026 Military Retirement Pay: COLA, Calculator & Complete Guide
- Military TSP Guide 2026: Contribution Limits & Investment Strategy
- CRSC vs CRDP 2026: Concurrent Retirement and Disability Pay Guide
- Survivor Benefit Plan (SBP) Guide
- Military Retirement Planning Hub
Disclaimer: This article is provided by USMilitary.org, an independent educational resource. We are not affiliated with the Department of Defense, DFAS, or any government agency. For official retirement pay information, visit DFAS.mil or contact your branch’s retirement services office. This content is for informational purposes only and does not constitute financial advice.
