TSP Balance Needed to Retire at 57 With a Military Pension (a Walkthrough from Edgepoint Wealth Management)

8 years out, 5 statements to pull before the math

Lyle and Thuy (hypothetical, 49 and 47) gather 5 documents before running any numbers. Lyle retired as a Navy chief at 41 and now supervises utility line crews. Thuy runs a small salon. He plans to leave work at age 57.

First is the myPay retiree account statement. It shows gross retired pay ($2,900 a month), the Survivor Benefit Plan deduction and federal withholding. Second, the TSP statement on tsp.gov splits the $310,000 into traditional and Roth money. Third, the utility 401(k) statement and its summary plan description say whether the plan accepts roll-ins and allows partial draws after age 55. Fourth, the my Social Security statement at ssa.gov gives each spouse's estimate at age 62 and age 67. Fifth, last year's Form 1040 and the DFAS Form 1099-R show what they actually pay in tax. Most people guess that number wrong.

How much TSP balance is needed to retire at age 57 with a $2,900 pension?

For Lyle and Thuy, the balance needed at age 57 is about $780,000 in today's dollars, counting both a lifelong gap multiplied by 25 and 10 years of bridge money before Social Security. Their numbers show how the split works.

They do it in five steps. Step 1: set pre-tax spending at $7,000 a month, or $84,000 a year, taxes included. Step 2: subtract the pension ($34,800 a year) for a $49,200 gap before Social Security. Step 3: subtract Lyle's illustrative age-67 Social Security estimate ($30,000 a year) for a $19,200 gap that lasts for life. Step 4: multiply the lifelong part by 25 ($480,000) and the bridge-only part ($30,000) by 10 years ($300,000). Step 5: add them for $780,000. You can put your own pension, spending and Social Security figures into the calculator on this site, and it repeats these five steps.

At age 49 they hold $560,000 across the TSP and the 401(k). Assuming 5 percent a year for illustration, and no new contributions, that becomes about $827,000 by age 57 ($560,000 x 1.4775). The margin is about $47,000. No investment is guaranteed, and a balance can drop and stay lower for years, so that margin is thin, not safe.

Now the tax check for the bridge years. The pension of $34,800 plus $49,200 of traditional draws is $84,000 of income. The IRS standard deduction for married filing jointly in tax year 2026 is $32,200, which leaves $51,800 taxable. Every traditional dollar is taxed as ordinary income, so the $84,000 target already has to include that bill. Roth TSP dollars come out tax-free once the rules are met, so they stretch further.

Look at the table for how spending changes the answer. The bridge cost stays at $300,000 in the first three rows, while the lifelong part swings with spending. Claiming at age 62 instead of 67 raises the total to $810,000. The choice is still open: claim at 62 or 67. Thuy keeping the salon until about age 60 tips it toward 67. Poor health, or a need to stop drawing early, tips it toward 62.

The five steps

Before and after the tax check

What age unlocks the TSP without the 10 percent penalty?

Lyle left federal service at age 41, so TSP draws before age 59½ carry the IRS 10 percent additional tax. The age-55 exception only covers a plan you separate from during or after the calendar year you turn 55.

His utility 401(k) does qualify when he leaves at 57, so the first 2.5 years (about $123,000 at $49,200 a year) should come from the 401(k), projected near $369,000 by then. Rolling the TSP into the 401(k) before his last day, if the plan accepts roll-ins, puts that money under the same exception. Doing it after he leaves does not help. A 72(t) series of equal payments is the fallback, but it locks the amount for at least 5 years or until 59½, whichever is longer.

Drawing traditional money now, at $51,800 of taxable income, uses low-bracket room that may not return. Saving the TSP for later keeps it growing tax-deferred until required minimum distributions start at age 73 for Lyle (born 1960 or later). Converting to Roth in these years shifts tax earlier. It only saves tax if their rate at conversion is below the rate they'd pay later. Couples who expect large RMDs should accept higher draws now. Couples with a small traditional balance usually shouldn't bother (check the current IRS brackets first).

The usual advice bends in a few places. Lyle's TRICARE coverage as a retiree means the marketplace premium-credit worry most early retirees have doesn't drive his draw size. A veteran with tax-free VA disability pay needs a smaller gross-up, because those dollars carry no tax. A reserve retiree whose pension starts at age 60 has a longer bridge and a different count of years in step 4.

Where the penalty exception applies

Draw now or save for later

$1 million and two other TSP targets that miss

A $1 million TSP is not the bar. Lyle and Thuy need about $780,000 across both accounts, because the pension already covers $34,800 a year. Applying the 25-times rule to the whole pre-Social Security gap tells Lyle he needs $1.23 million ($49,200 x 25), about $450,000 more than the split method shows, and that literal reading of generic advice could keep him on the line crews several extra years. Military retired pay is also fully taxable federal income (some states exempt it; check yours). And Roth conversions don't save tax by themselves. They move the bill to an earlier year, which pays off only if the later rate is higher.

Edgepoint Wealth Management starts with your myPay gross and the 59½ gap

Edgepoint Wealth Management would first read the gross retired pay on your myPay statement and the traditional versus Roth split on your TSP statement. Then it would count how many years fall before age 59½ with no age-55 exception. That count shows how much of your bridge must come from a current employer plan. It also shows whether a TSP roll-in has to be finished while you are still on that employer's payroll. The gap method works in today's dollars and ignores market swings, Thuy's salon income and state tax, so it sets a target, not a year-by-year projection.