Military Retirement Pay — How It’s Calculated in 2026
Military retirement pay is one of the most valuable long-term financial benefits of a military career — a guaranteed monthly pension for life, adjusted annually for inflation. But understanding how it’s calculated, what system applies to you, and how to maximize it requires knowing which retirement system you’re under and how the formulas work. This guide explains military retirement pay calculation for 2026.
The Three Military Retirement Systems
Which retirement system you’re under depends on when you entered service:
- Final Pay: Entered before September 8, 1980 — retirement pay based on final month’s base pay
- High-3 (Legacy): Entered September 8, 1980 – December 31, 2017 — retirement pay based on average of highest 36 months of basic pay
- Blended Retirement System (BRS): Entered January 1, 2018 or later (or opted in earlier) — reduced pension plus TSP matching contributions
Most currently serving members are under High-3 or BRS. Final Pay applies only to veterans who entered service over 45 years ago.
High-3 Retirement Pay Calculation
The High-3 (Legacy) system is the most common system for current and recent retirees:
Formula: 2.5% × Years of Service × Average of Highest 36 Months of Basic Pay
Example — E-8 with 22 years of service:
- Average of highest 36 months of basic pay: $5,200/month
- 2.5% × 22 years = 55%
- Monthly retirement pay: 55% × $5,200 = $2,860/month
Example — O-5 with 20 years of service:
- Average of highest 36 months of basic pay: $9,100/month
- 2.5% × 20 years = 50%
- Monthly retirement pay: 50% × $9,100 = $4,550/month
The multiplier maxes out at 75% (30 years of service). After 30 years: 2.5% × 30 = 75% of high-3 average.
Blended Retirement System (BRS) Calculation
BRS uses a lower pension multiplier but adds TSP matching contributions:
Formula: 2.0% × Years of Service × Average of Highest 36 Months of Basic Pay
Example — E-7 with 20 years under BRS:
- Average of highest 36 months of basic pay: $4,200/month
- 2.0% × 20 years = 40%
- Monthly retirement pay: 40% × $4,200 = $1,680/month
Compare to the same soldier under High-3: 50% × $4,200 = $2,100/month — the BRS pension is $420/month lower at 20 years.
The BRS pension reduction is offset by TSP matching contributions (up to 5% of basic pay) accumulated over a career. Whether BRS or High-3 is “better” depends on how long you serve, how aggressively you contribute to TSP, and investment returns — for shorter careers, BRS TSP matching can compensate; for longer careers with full pension, High-3 generally produces more total lifetime income.
Retirement Pay at 20 Years vs Longer Service
| Years of Service | High-3 Multiplier | BRS Multiplier |
|---|---|---|
| 20 years | 50% | 40% |
| 22 years | 55% | 44% |
| 24 years | 60% | 48% |
| 26 years | 65% | 52% |
| 28 years | 70% | 56% |
| 30 years (max) | 75% | 60% |
Each additional year of service beyond 20 adds 2.5% (High-3) or 2.0% (BRS) to your retirement multiplier — making additional service financially valuable.
How Basic Pay Affects Retirement
Military retirement pay is calculated from basic pay only — not the full compensation package that includes BAH (housing allowance) and BAS (subsistence). This is an important distinction: a service member whose total compensation is $7,000/month may have basic pay of only $4,500, and retirement calculations use that $4,500 figure.
Promotions near the end of a career significantly impact retirement pay by increasing the “highest 36 months” average. Finishing your final years at a higher pay grade — even briefly — raises your retirement base.
Cost-of-Living Adjustments (COLA)
Military retirement pay receives annual COLA adjustments based on the Consumer Price Index (CPI):
- High-3 and Final Pay retirees: Full CPI COLA annually
- BRS retirees: Full CPI COLA annually
- Redux retirees (a now-discontinued plan): CPI minus 1% annually until age 62, then a one-time catch-up
COLA is applied automatically every December 1 — no action required. Over a 30-year retirement, COLA adjustments roughly double the purchasing power of retirement pay compared to a fixed payment.
Tax Treatment of Military Retirement Pay
Military retirement pay is taxable income at the federal level — unlike VA disability compensation, which is tax-free. However:
- Some states exempt military retirement pay from state income tax — check your state’s rules
- Veterans receiving both retirement pay and VA disability compensation may elect Combat-Related Special Compensation (CRSC) or Concurrent Retirement and Disability Pay (CRDP) to receive both simultaneously without offset
CRSC and CRDP — Receiving Both Retirement and Disability Pay
Historically, military retirees receiving VA disability compensation had their retirement pay reduced dollar-for-dollar by the amount of VA compensation received — the “VA waiver.” This was significantly addressed through two programs:
Concurrent Retirement and Disability Pay (CRDP): Allows retirees with 20+ years and a VA disability rating of 50%+ to receive both full retirement pay and full VA disability compensation simultaneously. No offset. Most retirees with 50%+ ratings receive CRDP automatically.
Combat-Related Special Compensation (CRSC): For retirees with combat-related disabilities — provides tax-free compensation for the combat-related portion of disability, which can be more valuable than CRDP in some situations. Must apply through your service branch.
If you’re a military retiree with a VA disability rating, confirm whether you’re receiving CRDP and whether CRSC might be more beneficial for your specific situation.
When Does Military Retirement Pay Start?
Military retirement pay begins the day after your final day of active duty service (the date your retirement is effective). It’s paid monthly, typically on the first of each month for the prior month’s entitlement, through DFAS (Defense Finance and Accounting Service) direct deposit.
Using a Military Retirement Pay Calculator
The most accurate way to estimate your military retirement pay is through the official DoD calculator at militarypay.defense.gov/Calculators. You’ll need:
- Your retirement system (High-3 or BRS)
- Planned years of service at retirement
- Current basic pay by grade and years of service
- Expected final grade
The Bottom Line
Military retirement pay is a guaranteed, inflation-adjusted pension for life — one of the most valuable compensation packages available to any American worker. Understanding your system (High-3 or BRS), how the multiplier builds with each additional year, and how to maximize your high-3 average through promotions and service length helps you make informed career decisions and plan accurately for retirement. For retirees also receiving VA disability compensation, confirming CRDP or CRSC eligibility ensures you’re receiving the full benefit of both earned income streams.