BRS vs High-3: Optimize Your Military Retirement (2026)

Last Updated: June 27, 2026 Reading Time: 9 min

If you joined the military on or after January 1, 2018, you are in the Blended Retirement System (BRS), and BRS optimization is the single biggest lever you control over your retirement. About 75% of all active-duty service members are now in BRS. The old opt-in debate that fills most articles closed at the end of 2018. The real question for 2026 is not which system to pick. It is how to squeeze the most out of the one you already have.

Key Takeaways

  • If you entered service after January 1, 2018, you are in BRS automatically. There is no choice left to make.
  • BRS pays a smaller pension (40% at 20 years vs 50% under legacy High-3), but adds a TSP match and continuation pay the legacy system never offered.
  • The most expensive BRS mistake is front-loading your TSP and losing months of the 5% DoD match. It can cost $1,000 to $2,500 a year, every year.
  • Continuation pay rules changed in 2026, and the Guard/Reserve multiplier was slashed from 2.5x to 0.5x. The eligibility window narrows again in 2027.
  • Run your own numbers with the FedTools TSP Calculator before you change anything.

Which System Are You Actually In?

The line is simple:

  • Entered service on or after January 1, 2018: You are in BRS. Full stop.
  • Had between 1 and 12 years of service on January 1, 2018: You had an opt-in choice that closed December 31, 2018.
  • Entered before 2006, or did not opt in: You are in the legacy High-3 system.

Everything below is for the first group, the majority of the force, who are in BRS and want to make it work harder.

BRS has three parts, called pillars: a pension, a TSP match, and continuation pay. Most members only think about the pension. The other two are where the money is left on the table.

Pillar 1: The Pension (And Why 40% Isn't the Whole Story)

The BRS pension formula is 2.0% times your years of service times your High-3 average basic pay. At 20 years, that is 40% of your High-3. The legacy system used 2.5% per year, so legacy pays 50% at 20 years.

That 10-percentage-point gap is real. On a $95,000 High-3 average, it is $9,500 a year, or about $790 a month. But two facts soften it:

  • BRS members get the full annual COLA, same as legacy High-3. (REDUX, an older option, cuts COLA by one point. Do not confuse it with BRS.)
  • The gap is not unique to 20 years. Serve to 25 and BRS pays 50%, the same percentage a legacy member gets at 20.

The pension is only one pillar. The match is what changes the math.

Pillar 2: The TSP Match (Don't Leave It on the Table)

This is the heart of BRS optimization. Under BRS, the DoD contributes to your Thrift Savings Plan:

  • 1% automatic contribution after 60 days, whether you contribute or not.
  • Up to 4% matching once you hit your 25th month of service, when you contribute 5% of basic pay.

Contribute 5%, get 5% from the government. That is free money that compounds for decades. But there is a trap.

The Front-Loading Trap

The match is paid monthly, not annually. To get the full match, you must contribute at least 5% of basic pay in every single pay period. If you front-load your contributions and hit the 2026 limit of $24,500 in, say, July, your contributions stop for August through December, and the DoD matches $0 for those five months.

Here is what that mistake costs, by rank, in 2026:

Rank Years 2026 Monthly Basic Pay Annual Match Lost 10-Year Compounded Loss (7%)
E-5 6 $4,110 $1,028 ~$14,300
E-6 10 $4,760 $1,190 ~$16,600
E-7 10 $5,300 $1,325 ~$18,500
O-3 6 $7,737 $1,934 ~$27,000
O-4 8 $8,816 $2,204 ~$30,700
O-5 10 $9,929 $2,482 ~$34,600

FedTools calculation using verified 2026 basic pay (navycs.com) and the $24,500 IRS deferral limit. The 10-year figure assumes the lost match would have grown at 7%. Illustrative, not guaranteed.

An O-4 who maxes out by July forfeits about $2,200 in matching that year. Compounded over 10 years at 7%, that one mistake costs an estimated $30,700.

The Fix: Pace Your Contributions

To capture every dollar of match, spread your contributions so you hit $24,500 in December, not before. Divide $24,500 by 12, which is $2,042 a month. Set the matching percentage in myPay or IPPS-A:

Rank Years Monthly Basic Pay Contribution % to Hit Limit in December
E-7 10 $5,300 38.5%
O-3 8 $8,125 25.1%
O-4 8 $8,816 23.2%
O-5 10 $9,929 20.6%

Matching contributions do not count toward the $24,500 limit. For junior enlisted, maxing out is often not realistic, and that is fine. The priority is always to contribute at least 5% to capture the match. Everything above 5% is optional.

Does the TSP Match Close the Pension Gap?

This is the question every BRS member asks. We ran the numbers across three career profiles at different return assumptions. The honest answer: the match alone does not fully close the 10-point pension gap, but the match plus your own 5% contribution overtakes it.

Profile (High-3 avg) TSP at 8% (match only) TSP at 8% (match + your 5%) 30-Year Pension Gap
E-7 (~$60,000) $137,000 $274,000 $180,000
O-3/O-4 (~$95,000) $216,800 $433,600 $285,000
O-5 (~$115,000) $262,400 $524,800 $345,000

FedTools original projection based on 2026 pay data. Nominal dollars over a 30-year retirement, simplified annual compounding. The DoD BRS Comparison Calculator at militarypay.defense.gov is the authoritative tool for your personal estimate.

The takeaway: the match is free money, but your own contributions are the multiplier. A BRS member who contributes 5% and captures the full DoD match ends up ahead of the pension gap at an 8% return for every profile above. Do nothing extra and you stay behind.

Pillar 3: Continuation Pay (And the 2026 Changes Nobody Mentions)

Continuation pay is a cash bonus that only BRS members get, paid between 7 and 12 years of service (Army CY2026 window) in exchange for committing to 4 more years.

  • Active duty: minimum 2.5 times monthly basic pay. An O-4 at 8 years gets about $22,000 before taxes.
  • Guard/Reserve drilling status: the minimum multiplier was cut from 2.5x to 0.5x effective January 1, 2026. An E-6 who would have received about $11,900 in 2025 now gets closer to $2,380. The exception: 270 or more days of involuntary mobilization in a 730-day window restores the 2.5x rate.

Two timing points matter. First, continuation pay is taxable income, withheld at the 22% supplemental rate, though it may be tax-free if received in a combat zone. Second, the eligibility window narrows to 7 to 10 years in 2027. If you are approaching 10 years of service in 2026 and have not applied, do it before year-end.

Continuation pay rates and multipliers vary by service and specialty. The figures above use Army CY2026 rates as examples; confirm your own service's current rate.

The Lump-Sum Option at Retirement

BRS members who retire with 20 or more years can take a 25% or 50% lump sum of their pension value in exchange for reduced monthly pay until age 67, when full pay resumes. The election is irrevocable.

The math hinges on the 2026 lump-sum discount rate of 6.46%. If you are confident you can invest the lump sum and earn more than 6.46% a year, the lump sum can come out ahead. Below that, the steady monthly pension is worth more. Most planners favor the monthly income unless you have a specific reason. Do not make this call without running the DoD calculator.

Calculate Your BRS TSP Growth

Want to know whether your TSP is on track to clear the pension gap? Two tools that let you run your own numbers:

  • BRS vs High-3 Calculator: Enter your High-3 annual pay and TSP return assumption for a side-by-side: BRS pension + TSP balance vs High-3 pension, including the 30-year gap and lump-sum estimates. Compare now.

  • TSP Calculator: Project your total TSP balance at retirement across different contribution rates, fund allocations, and time horizons. Try it now.

Heading toward a federal civilian career after the military? See what your rank is worth on the GS scale with the Military-to-GS Pay Translator.

Frequently Asked Questions

I joined in 2020. Am I automatically in the Blended Retirement System?

Yes. Everyone who entered service on or after January 1, 2018 is in BRS automatically. You are not in the legacy High-3 system. The opt-in choice older members talk about was only for those with 1 to 12 years of service on January 1, 2018, and that window closed December 31, 2018.

What is the actual pension difference between BRS and the legacy system at 20 years?

BRS uses a 2.0% multiplier per year of service; legacy High-3 uses 2.5%. At 20 years, BRS pays 40% of your High-3 average basic pay and legacy pays 50%. On a $95,000 High-3 average, that is a $9,500 per year gap. But BRS adds TSP matching and continuation pay that a legacy member does not get.

How do I avoid losing my TSP match by contributing too much early in the year?

The DoD match is paid monthly and requires you to contribute at least 5% of basic pay every month. If you front-load and hit the $24,500 limit before December, your contributions stop and the DoD matches $0 for the rest of the year. Divide $24,500 by 12, which is about $2,042 a month, and set your myPay percentage to land at the limit in December.

What is continuation pay and when can I get it?

Continuation pay is a cash bonus unique to BRS, paid between 7 and 12 years of service in 2026 in exchange for 4 more years of service. Active-duty minimums are 2.5 times monthly basic pay. The window narrows to 7 to 10 years in 2027, so members near 10 years should apply now. Guard and Reserve drilling members saw their minimum multiplier cut from 2.5 times to 0.5 times in January 2026.

Does BAH count toward my TSP match or pension?

No. BAH and BAS are non-taxable allowances and are not included in either the TSP matching calculation or the pension High-3 base. Only basic pay counts. This is one of the most common BRS misconceptions.

Sources: Military OneSource: BRS, TSP Bulletin 17-U-3, IRS 2026 contribution limits, DoD BRS Comparison Calculator, ALARACT 100/2025 (Army CY2026 Continuation Pay), military.com: Continuation Pay Changes, DFAS 2026 COLA.