Blended Retirement System vs. High-3: What Changed and Who It Affects

BRS lowered the pension multiplier used to calculate retired pay for each year of service, compared to the multiplier used under High-3. In exchange, it added an automatic government contribution to a service member's TSP account from day one, plus matching contributions on top of what the service member puts in — money that belongs to the service member whether or not they ever reach 20 years.

BRS also introduced two features High-3 never had. Continuation pay is a one-time, mid-career payment offered in exchange for an additional service commitment, with the amount set by each service and varying by year. And at retirement, BRS retirees can choose a lump-sum option that pays out a portion of retired pay upfront in exchange for reduced monthly payments until full retirement age, when payments return to the standard amount.

The transition wasn't a clean cutover for everyone already serving. Broadly:

• Service members with a substantial career already in at the time of the transition were grandfathered into High-3 automatically, with no change unless they opted in to BRS
• Those earlier in their careers at the time of the transition fell under BRS automatically, or were given a window to actively choose between the two systems
• Anyone who joined after that opt-in window closed is under BRS with no choice involved
• Reserve and Guard members had their own version of the same grandfathering and opt-in structure, calculated against points rather than active-duty years

For someone who serves a full career to retirement, High-3 generally produces a larger pension because of its higher multiplier, and historically that was the whole retirement benefit — nothing if you left early. BRS trades some of that pension size for a retirement benefit that exists regardless of how long someone serves: the TSP contributions and match belong to the service member from the point they vest, whether they separate at four years or retire at twenty-plus.

Which system comes out ahead in dollar terms over a full career depends heavily on individual variables: rank and promotion timeline, whether continuation pay is taken and how it's used, TSP contribution rate and fund choices, and how long the money stays invested before retirement. There's no single answer that applies to every career path.

Because the outcome depends so much on individual career details, generic comparisons only go so far. The Blended Retirement Calculator estimates BRS benefits, including the pension and projected TSP growth, based on your actual rank and timeline, while the High-3 Pay Calculator does the same for the legacy system. Running both side by side, whether you have an active choice or are simply curious how your grandfathered High-3 benefit compares, gives a far more useful picture than a rule of thumb. For BRS specifically, the TSP Optimizer helps make sure contributions are allocated to capture the full match and are invested appropriately for the time horizon involved.

For most current service members, whether they're under High-3 or BRS was decided years ago and generally can't be undone. What's still an active decision is how to manage the parts within each system: how continuation pay gets used if it's offered, how the lump-sum option factors into a retirement plan, and how aggressively to contribute to and manage TSP. A financial professional familiar with military retirement can help weigh those choices against your specific situation.