Social Security Break-Even Calculator

How the Primary Insurance Amount is calculated

Everything in Social Security flows from one number: your Primary Insurance Amount, or PIA. The SSA calculates it by indexing your lifetime earnings to inflation, taking your 35 highest-earning years, computing an average monthly figure called AIME (Average Indexed Monthly Earnings), and running it through a formula with two bend points.

The bend points change each year based on wage indexing. For workers turning 62 in 2025, the bend points were $1,226 and $7,391. The formula applies 90% to AIME up to the first bend point, 32% to AIME between the two bend points, and 15% to anything above the second. Those three pieces add up to your PIA, which is the benefit you'd receive if you claimed at exactly your Full Retirement Age. Check ssa.gov for the current year's bend points.

The 35-year rule hits harder than most people expect. If you worked fewer than 35 years, SSA pads your record with zeros for the missing years. A career spanning 30 years means 5 zeroes in the average, which depresses your AIME and your PIA. Working a few more years can replace those zeros with real earnings and meaningfully increase your benefit.

Full Retirement Age and how it varies by birth year

FRA isn't 65 anymore. Congress changed it starting with people born in 1938, phasing the age up to 67 for anyone born in 1960 or later. If you were born between 1955 and 1959, your FRA lands somewhere between 66 and 67.

The reduction for claiming before FRA works in two rates. For the 36 months immediately before FRA, each month cuts 5/9 of 1% (6.67% per year). For any months beyond 36, the rate drops to 5/12 of 1% per month, or 5% per year. That's why claiming at 62 when FRA is 67 produces a 30% cut: three years at 6.67% plus two years at 5%.

Delayed credits work differently. Every month you wait past FRA, up to age 70, adds 2/3 of 1%, which works out to exactly 8% per year. Three years of delay from 67 to 70 adds 24% to your FRA benefit. Those credits stop at 70. There is no gain from waiting past 70.

The break-even analysis

The actuarial logic behind Social Security is that claiming at 62, 67, and 70 should produce the same total lifetime benefit if you live exactly to the SSA's assumed life expectancy. The break-even age is the point where cumulative payments from the later strategy overtake cumulative payments from the earlier one.

Comparing 62 vs. 67 claiming: you get 60 more monthly payments by claiming at 62, but each one is 30% smaller. The break-even typically lands between 78 and 81. For 67 vs. 70, you forgo 36 months of FRA payments to gain 8% per year, so break-even usually falls between 80 and 83.

The break-even math changes if you invest early benefits rather than spending them. At a 5% annual return on invested early benefits, the investment-adjusted break-even for 62 vs. 67 moves from roughly 80 to closer to 87. Whether that matters depends on whether you can actually keep those early checks invested rather than spending them.

When claiming early makes sense

Poor health is the clearest case. If you have a serious condition that shortens your life expectancy, the break-even is irrelevant because you won't reach it. Claim when it maximizes income over your actual expected lifespan, not the SSA's average.

The earnings test is another factor. In 2026, if you claim before FRA and earn more than $24,480 per year, SSA withholds $1 of benefit for every $2 you earn above the limit. The withheld benefits aren't lost; they're added back as a higher monthly payment when you reach FRA. But the cash-flow disruption can be disorienting if you didn't plan for it. If you're still working at a decent salary and under FRA, claiming Social Security probably costs you more in withheld benefits than it gives you.

Immediate financial need is obvious but worth saying: the break-even analysis assumes you have other income to live on while waiting. If you don't, you claim when you can. Deferring Social Security while liquidating a portfolio in a down market can cost more than the delay credit gains.

Spousal and survivor benefits

A spouse who earned less (or nothing) can claim a spousal benefit worth up to 50% of your PIA. Not 50% of whatever you actually receive, but 50% of your FRA amount. Delay credits don't boost the spousal benefit. Your spouse claiming at their own FRA gets exactly 50% of your PIA regardless of whether you claimed at 62 or 70.

Survivor benefits are much larger. After your death, your surviving spouse can inherit 100% of whatever you were collecting when you died. If you delayed to 70 and built a $3,500/month benefit, that's what your spouse receives as a survivor benefit. If you claimed at 62 with a $2,100/month benefit and die at 75, your spouse inherits $2,100, not the higher 70-claiming amount.

The math on survivor benefits often decides the claiming strategy for couples with a significant earnings gap. A $1,400/month difference in the survivor benefit, multiplied over 15-20 years of a survivor's life, exceeds $250,000 in nominal terms. For the higher earner in a couple with unequal incomes, delaying to 70 is frequently the best longevity insurance available.

Social Security taxes and pension income stacking

Up to 85% of your Social Security benefit becomes federally taxable if your combined income (adjusted gross income plus half of your Social Security) exceeds $34,000 for single filers or $44,000 for joint filers. A pension plus IRA withdrawals plus Social Security can push almost the entire benefit into taxable territory quickly.

Some retirees benefit from delaying Social Security while drawing down traditional IRA and 401(k) balances in the gap years. Lower income during those years keeps more of the eventual SS benefit tax-free. Roth conversions in those same years can further reduce future RMDs, which would otherwise spike income and trigger more SS taxation.

None of this has a universal answer. Your bracket, your state's tax treatment of Social Security (some states exempt it entirely), your spouse's income, and your expected RMD trajectory all matter. Run your specific numbers, or pay a fee-only advisor to run them, before locking in a claiming strategy.