Military Retirement and the Blended Retirement System
The National Defense Authorization Act for Fiscal Year 2016 created the Blended Retirement System, fundamentally restructuring military retirement for service members entering active duty on or after January 1, 2018. The traditional High-3 system continued for those already in service, with a one-time opt-in window for those with fewer than 12 years of service as of December 31, 2017. The BRS reduces the pension multiplier from 2.5% to 2.0% per year of service in exchange for a TSP match — restoring some retirement value to the 81% of service members who separate before the 20-year cliff.
The two systems compared
| Component | High-3 (legacy) | Blended Retirement System |
|---|---|---|
| Pension multiplier | 2.5% per year | 2.0% per year |
| Pension cliff | 20 years | 20 years |
| TSP match | None | Automatic 1%, match up to 5% (after 2 years of service) |
| Continuation pay | None | 2.5×–13× monthly basic pay at 12 years for additional 4-year commitment |
| Lump-sum option at retirement | None | 25% or 50% of remaining pension PV, paid as lump sum |
Pension formula
Monthly retired pay = high-3 average basic pay × years of service × multiplier
For a member with 20 years of service:
- High-3 system: 20 × 2.5% = 50% of high-3 basic pay for life.
- BRS: 20 × 2.0% = 40% of high-3 basic pay for life, plus accumulated TSP balance.
"Basic pay" is the published pay-grade base, not allowances. BAH, BAS, and special pays do not count.
TSP for service members
Service members participate in the same TSP as federal civilians, with parallel rules:
- Employee deferral up to §402(g) limit: $23,500 in 2025.
- Combat-zone tax-excluded contributions can exceed the §402(g) limit up to the §415(c) limit ($70,000), with the excess flowing into an after-tax Roth-like component (the "combat-zone Roth").
- Government contributions for BRS members: Automatic 1% starts after 60 days of service; matching begins after 2 years of service.
- 5% employee contribution + 4% match + 1% automatic = 10% of basic pay into TSP for a fully participating BRS service member.
Continuation pay
At the 12-year point, BRS service members receive a one-time bonus in exchange for a 4-year service commitment. Active duty: 2.5× to 13× monthly basic pay (service-set, currently 2.5× DOD-wide). Reserve component: 0.5× to 6× monthly basic pay. The bonus is taxable in the year received unless rolled into the TSP. For a senior NCO this is typically $10,000–$30,000.
Lump-sum option at retirement
BRS retirees may elect at retirement (must elect no later than 90 days before retirement) to take 25% or 50% of the present value of the pension stream as a lump sum, reducing monthly retired pay correspondingly until full Social Security retirement age (currently 67). At SS FRA the full pension restarts. The DOD discount rate used in the lump-sum calculation has historically been 6.99%–7.30% — meaningfully higher than market rates, making the lump-sum option unfavorable for most retirees. A 20-year retiree taking 50% lump sum typically forfeits 5–8% of lifetime pension value.
Worked example: 20-year BRS retirement at E-7
E-7 (Sergeant First Class / Petty Officer 1st Class), high-3 basic pay $5,500/month. 20 years of service.
- Pension: $5,500 × 20 × 0.02 = $2,200/month ($26,400/year), COLA-adjusted for life.
- TSP (5% contribution + 5% match, 20 years, 7% real return): approximately $290,000–$340,000.
- Continuation pay at year 12: $13,750 (2.5× $5,500).
- Total lifetime value (age 38 retirement, life expectancy 80): Pension PV approximately $720,000 (4% discount) + TSP $300,000 + continuation $14,000 = roughly $1,030,000.
Reserve component differences
Reserve retirement uses a points system. 50 points required per year for a creditable year toward retirement. Reserve retired pay is paid beginning at age 60 (reduced age applies for active-duty mobilizations after 2008 under 10 U.S.C. §12731(f)). Multiplier and TSP rules parallel active duty.
Common mistakes
- Failing to contribute at least 5% to TSP for BRS. A BRS service member contributing 0% receives the 1% automatic but forfeits the 4% match — a 4% pay cut, every pay period.
- Taking the lump-sum at retirement. Almost always unfavorable. The DOD discount rate is higher than the rate the retiree can reliably earn after tax.
- Not opting into BRS during the 2018 window if separation was likely. Members who departed before 20 years lost all pension value under High-3 but would have kept the TSP balance under BRS.
- Forgetting Tricare and concurrent receipt. Military retiree healthcare (Tricare for Life at 65) and DOD-VA concurrent receipt rules add substantial value not captured in the pension number.
- Failing to track creditable points (reservists). A year with 49 points is not creditable; planning around drill schedules and active-duty orders matters.
- Underestimating COLA. Military pensions receive full CPI-W COLA adjustments, a feature largely absent from private-sector pensions. Over a 40-year retirement the present-value lift is enormous.
Sources
- 10 U.S.C. §§1401–1410 (military retired pay): law.cornell.edu §§1401–1410
- NDAA FY 2016, Pub. L. 114-92, §631 (BRS): congress.gov/bill/114th-congress/senate-bill/1356
- Department of Defense, BRS Resource Center: militarypay.defense.gov/BlendedRetirement/
- DoDI 1340.27, Military Retired Pay: esd.whs.mil DoDI 1340.27
- TSP for Uniformed Services: tsp.gov tspbk08
Military retirement combines pension, TSP, and benefits in ways that are easy to underestimate. Explore the free educational tool.