Blended Retirement System (BRS): Complete Optimization Guide
Bottom Line Up Front: BRS gives you TSP match (5% of base pay = $40,000-$200,000 lifetime value) + smaller pension (2% per year vs. 2.5% under Legacy High-3). To maximize BRS: Contribute 5%+ to TSP from day one, stay 20+ years for pension, invest TSP aggressively (C Fund), understand Continuation Pay at 12 years. BRS is better if you serve <20 years. Legacy is better if you retire at exactly 20.
BRS vs. Legacy High-3 (Quick Comparison)
| Feature | BRS (Blended Retirement System) | Legacy High-3 | |------------|-------------------------------------|-------------------| | Who it applies to | Joined after 2018 OR opted in before 2018 | Joined before 2006, OR 2006-2017 and didn't opt into BRS | | Pension multiplier | 2% per year of service | 2.5% per year | | TSP match | 5% match (automatic 1% + match 4%) | No match | | Continuation Pay | Lump sum at 12 years (2.5x-13x monthly base pay) | No continuation pay | | Best for | Those who might not do 20 years | Those staying exactly 20 years |
BRS Components
1. TSP Matching (The Big Benefit)
How it works:
- Automatic 1%: Military contributes 1% of your base pay even if you contribute $0
- Match up to 4%: If you contribute 5%, military matches 4% (total: 5% match)
- Vesting: After 2 years of service, match is YOURS forever
Lifetime value of 5% match:
Example: E-5 over 20-year career
- Average base pay: $3,500/month
- 5% match: $175/month
- Over 20 years: $42,000 contributed by military
- At 7% growth: $87,000 value by retirement
Example: O-3 over 20-year career
- Average base pay: $6,000/month
- 5% match: $300/month
- Over 20 years: $72,000 contributed by military
- At 7% growth: $149,000 value by retirement
2. Pension (Reduced Multiplier)
Formula:
BRS Pension = Final Base Pay × Years of Service × 2%
Example: E-7 retiring at 20 years
- Final base pay: $5,200/month
- Years: 20
- Pension: $5,200 × 20 × 2% = $2,080/month
Compare to Legacy High-3:
- Same E-7
- Pension under High-3: $5,200 × 20 × 2.5% = $2,600/month
- Difference: $520/month less under BRS
But don't forget TSP match! BRS has $87,000 in TSP that Legacy doesn't.
3. Continuation Pay (Lump Sum at 12 Years)
What it is:
- One-time lump sum payment if you commit to 4 more years (to 16 years total)
- Paid around year 12 mark
- Amount varies by branch and career field
Multiplier:
- Active duty: 2.5x - 13x monthly base pay (depending on branch/job)
- Reserve: 0.5x - 6x monthly base pay
Example: E-6 at 12 years
- Base pay: $4,000/month
- Continuation Pay: 2.5x = $10,000 (typical for most non-critical jobs)
- Must serve to 16 years
Example: Pilot (critical field)
- Base pay: $7,000/month
- Continuation Pay: 13x = $91,000
- Must serve to 16 years
Tax: Continuation Pay is taxable income (25% withheld usually)
BRS Optimization Strategy
Strategy #1: Contribute 5% from Day One
Why:
- Maximize TSP match
- $175-$300/month in free money
- Compounds over 20 years = $80,000-$150,000
How:
- Log into myPay
- Set TSP contribution to 5% (or more)
- Never drop below 5%
Strategy #2: Invest TSP in C Fund (100% Stocks)
Why:
- BRS relies more on TSP growth than Legacy
- C Fund averages 10-11% annually (vs. G Fund's 2-3%)
- You have 20-40 years for compounding
Example:
- $300/month for 20 years at 10% = $228,000
- Same at 2% (G Fund) = $88,000
- Difference: $140,000
Strategy #3: Take Continuation Pay, Stay to 20
Why:
- Get lump sum at 12 years ($10,000-$91,000)
- Serve to 20 for pension
- Total value: Pension + TSP + Continuation Pay
Example: E-7, 20 years, BRS
- Pension: $2,080/month = $24,960/year
- TSP (with match): $150,000 at retirement
- Continuation Pay: $10,000 at year 12
- Total retirement value: $174,960 + pension for life
Strategy #4: If Separating Before 20, BRS Is Better
Why:
- Legacy gives you $0 if you separate before 20 years
- BRS gives you TSP match (vested after 2 years)
Example: Serving 8 years, then separate
- BRS: Keep $35,000 TSP match + your contributions
- Legacy: Get $0 retirement benefit
- BRS wins
BRS vs. Legacy High-3 (Which Is Better?)
BRS Is Better If:
- ✅ You're unsure if you'll do 20 years
- ✅ You're disciplined with TSP investing (5%+, C Fund)
- ✅ You want flexibility (TSP is portable, pension isn't)
- ✅ You value lump sum continuation pay
Legacy High-3 Is Better If:
- ✅ You're 100% certain you'll retire at exactly 20 years
- ✅ You want higher guaranteed pension ($520/month more for E-7)
- ✅ You're risk-averse (prefer guaranteed pension over TSP)
Break-Even Analysis
At 20 years:
- BRS pension: $24,960/year
- Legacy pension: $31,200/year
- Difference: $6,240/year in favor of Legacy
But BRS has:
- TSP match: $87,000-$150,000
- Continuation Pay: $10,000-$91,000
To break even:
- If you live 14-24 years in retirement, Legacy catches up in total value
- But if you invest TSP well, BRS can still win
Common BRS Mistakes
❌ Mistake #1: Not Contributing 5% to TSP
Reality: You contribute 0%. You lose $175-$300/month in free match = $87,000-$150,000 over career.
Fix: Contribute AT LEAST 5%. Ideally 10-15%.
❌ Mistake #2: Putting TSP in G Fund
Reality: You put TSP in "safe" G Fund (2.4% return). You lose $140,000 in growth vs. C Fund.
Fix: Put TSP in C Fund (or L Fund if you want autopilot).
❌ Mistake #3: Separating Before 2 Years (Lose TSP Match)
Reality: You separate at 18 months. TSP match isn't vested. Government takes back $3,000.
Fix: Serve at least 2 years to vest TSP match.
❌ Mistake #4: Declining Continuation Pay
Reality: You decline continuation pay at year 12. You leave $10,000-$91,000 on table.
Fix: Accept continuation pay IF you plan to serve to 16+ years anyway.
❌ Mistake #5: Thinking BRS = Less Money
Reality: "BRS gives smaller pension, so Legacy is better."
Truth: BRS pension is smaller, but TSP match + Continuation Pay often make up for it (and then some).
Opt-In Decision (For Pre-2018 Service Members)
Who Had the Choice?
- Joined between 2006-2017
- Had option to opt into BRS in 2018
Most Chose to Stay in Legacy
Why:
- Already had 5-15 years served
- Closer to 20-year retirement
- Pension reduction hurt more than TSP match helped (for them)
If You Opted Into BRS
Make sure you:
- Contribute 5%+ to TSP immediately
- Invest in C Fund
- Take continuation pay at year 12
Action Steps
If You're Under BRS:
- ✅ Log into myPay, set TSP to 5%+ (do this TODAY)
- ✅ Log into TSP.gov, change allocation to C Fund (or L 2060/2065)
- ✅ Plan to take continuation pay at year 12
If You're Deciding BRS vs. Career Length:
- ✅ Use BRS calculator (militarypay.defense.gov/calculators)
- ✅ Compare scenarios (10 years vs. 20 years vs. 30 years)
- ✅ Make informed decision about career length
Annually:
- ✅ Check TSP balance
- ✅ Verify 5% contributions still happening
- ✅ Rebalance to C Fund if needed
Verification & Sources
Official Sources:
- DoD BRS Calculator: militarypay.defense.gov/calculators
- DFAS BRS Information
- TSP.gov BRS guidance
Last Updated: October 31, 2025
Related Guides
- TSP Fund Allocation by Career Stage
- TSP Roth vs Traditional
- Military Retirement: High-3 vs. BRS Complete Comparison
Remember: BRS trades guaranteed pension for flexibility and portability. If you're disciplined with TSP (contribute 5%+, invest in stocks, stay 20+ years), BRS is fantastic. If you're 100% doing 20 years and want simplicity, Legacy High-3 gives higher pension. Either way, max that TSP match — it's free money.
