Military Retirement Systems

There are three military retirement systems: Final Pay (for those who entered before September 8, 1980), High-36 (entered between 1980 and 2017), and the Blended Retirement System (BRS, the default for those entering after January 1, 2018). Each calculates your pension differently.

Final Pay Retirement

Under Final Pay, your retirement pension is 2.5% times your years of service, multiplied by your final base pay at retirement. With 20 years, that's 50% of your final base pay. This is the most generous system but only applies to the oldest cohort of retirees.

Learn more about Final Pay →

High-36 Retirement

High-36 calculates your pension using the average of your highest 36 months of base pay instead of your final pay. The formula is the same — 2.5% per year of service — but the base amount is typically slightly lower than Final Pay since it averages three years rather than using the peak.

Learn more about High-36 →

Blended Retirement System (BRS)

BRS reduces the pension multiplier to 2.0% per year (40% at 20 years instead of 50%) but adds government matching to the Thrift Savings Plan (TSP) of up to 5% of base pay. For service members who don't serve a full 20 years, BRS is significantly better than the legacy systems since they keep their TSP contributions.

Learn more about BRS →

Disability Retirement

Service members medically separated with a disability rating of 30% or higher receive disability retirement pay. Chapter 61 retirement uses a different calculation — either the standard formula or 2.5% times your disability rating, whichever is higher. Understanding the difference between medical retirement and VA disability compensation is critical for maximizing your benefits.

Learn more about disability retirement →

Reserve & Guard Retirement

Reserve and National Guard members earn retirement points instead of active-duty years. You need a minimum of 20 qualifying years (good years with at least 50 points each). Reserve retirement pay typically begins at age 60, though qualifying deployments after 2008 can reduce that age.

Learn more about reserve retirement →

Survivor Benefit Plan (SBP)

SBP provides up to 55% of your retirement pay to your surviving spouse or dependents after your death. The cost is 6.5% of your chosen base amount, deducted from your retirement pay. You must elect SBP at retirement — declining requires your spouse's written consent.

Learn more about SBP →

CRSC & CRDP (Concurrent Receipt)

Federal law historically required a dollar-for-dollar offset between military retirement and VA disability pay. CRDP restores this offset for retirees with 50%+ VA ratings, while CRSC provides tax-free payments for combat-related disabilities. You can receive one but not both — understanding which pays more is essential.

Learn more about CRSC & CRDP →

See also: BRS vs High-3: Military Retirement Systems Compared 2026

Military Retirement Eligibility: When Can You Retire?

Active-duty service members become eligible for military retirement after completing a minimum of 20 years of qualifying active service.

Key eligibility rules by category:

  • Active Duty (20-year minimum): The standard threshold for all branches. Service members who complete 20 years of active duty are entitled to immediate retired pay upon separation.
  • Early Retirement via TERA: The Temporary Early Retirement Authority allowed retirement at 15–19 years during force drawdown periods. TERA is not currently active as of 2026 — it requires specific congressional authorization.
  • Guard and Reserve: Requires 20 qualifying years (years in which at least 50 retirement points were earned through drill weekends, annual training, and active-duty periods) plus reaching retirement age — typically age 60, reduced to age 58 for reservists who completed 90+ consecutive days of deployment post-2001.
  • BRS Grandfathering: BRS members with 12 or more years of service on or before January 1, 2018, were automatically grandfathered under the High-36 system and did not enroll in BRS.
  • Disability Retirement (Chapter 61): Any service member with a permanent disability rating of 30% or higher may receive disability retired pay regardless of years served — even before the 20-year threshold.

Learn more about Reserve retirement points or disability retirement vs. Chapter 61.

Military Retirement Process Timeline

The military retirement process begins up to 18 months before your anticipated separation date and involves several coordinated steps across your branch, DFAS, and TRICARE.

  • Step 1 — 12–18 months out: Attend the Transition Assistance Program (TAP), a mandatory pre-separation course. Begin your retirement application in your service's HR system: IPPS-A for Army, MyNavyHR for Navy/Marine Corps, myPers for Air Force/Space Force.
  • Step 2 — 6 months out: Submit your official retirement request. Your command approves it and you receive your terminal leave options — unused leave days are typically paid out or used to extend your final date on base.
  • Step 3 — DD-214 issuance: Your DD-214 (Certificate of Release or Discharge from Active Duty) is issued at final out-processing. This document triggers DFAS to initiate retirement pay processing.
  • Step 4 — DFAS enrollment: Register at mypay.dfas.mil to set up direct deposit, tax withholding elections, and SBP premium deductions.
  • Step 5 — First retirement check: Typically arrives within 30–60 days of your separation date. If no payment is received by day 60, contact DFAS customer service directly — delays often stem from incomplete DD-214 data.

Additional post-retirement actions: Enroll in TRICARE within 90 days of separation. If you elected the Survivor Benefit Plan (SBP), your spouse must have provided written concurrence if you chose to decline or reduce coverage — elections are generally irrevocable at retirement.

Is Military Retirement a Pension or a Different Benefit?

Military retirement is a defined-benefit pension — a guaranteed monthly payment for life determined by years of service and base pay, not by investment returns or market conditions.

This is an important distinction:

  • Defined-benefit pension (legacy High-36 / Final Pay): The government guarantees a fixed monthly amount for life, with annual Cost of Living Adjustments (COLA). There is no investment risk for the retiree.
  • Defined-contribution plan (TSP): Similar to a 401(k) — the retiree's payout depends on how much was contributed and how investments performed. The TSP exists separately from the pension under all retirement systems.
  • Blended Retirement System (BRS): Combines both — a reduced 40% pension at 20 years PLUS TSP with DoD matching up to 5% of base pay. This hybrid approach benefits members who leave before 20 years more than the legacy system.

Critically, the military pension is unfunded — it is paid directly from the U.S. Treasury rather than from a dedicated pension fund. This makes it structurally more secure than a corporate pension (no risk of fund insolvency or benefit cuts from poor fund management).

Use our Military Retirement Calculator to estimate your monthly pension, or read our deep-dive on the Blended Retirement System.