Claiming Social Security early locks in a permanently reduced benefit. Waiting until 70 maximizes your monthly check — but you give up years of payments in the meantime. This calculator finds the break-even age: the point where delaying finally pays off.
Two scenarios are modeled side by side. The first applies annual COLA to both benefit streams — the same CPI data behind our Inflation Calculator. The second assumes you invest every early payment at a market return rate, then measures how long it takes the higher delayed benefit to overcome the compounded portfolio.
Your exact benefit estimates are free at ssa.gov/myaccount — look for "Your Retirement Benefit Estimates."
Social Security Break-Even Calculator
Enter your early and delayed claiming ages and benefits. Two calculators — one with COLA, one factoring in market returns.
The assumed return if you invest your early SS checks instead of spending them. 7% is a common long-run S&P 500 estimate (real, after inflation). See the historical table below to choose a rate.
Investment break-even age
—
Monthly benefit difference—
Portfolio built investing early payments—
Annual portfolio return vs extra SS income—
Years to break even after delayed start—
What the portfolio earns per year at 7%
Portfolio annual return—
Extra SS income per year (from waiting)—
Annual advantage—
What This Means for You
†About Annual COLA: The Cost-of-Living Adjustment is the annual percentage increase the SSA applies to your benefit each January, based on the CPI-W (Consumer Price Index for Urban Wage Earners). It is not the general inflation rate you choose for other purposes — the SSA sets it independently each fall based on CPI data from the prior year. Historical COLA averages about 2–3% since 1975, with spikes during high-inflation periods (8.7% in 2023) and 0% in deflationary years.
Surviving Spouse Benefit
60 = 71.5% · 67 (FRA) = 100%
Historical Average Annual Returns
Use these benchmarks to set a realistic market return rate in the Investment Break-Even calculator above.
Index / Asset
30-yr Avg
20-yr Avg
10-yr Avg
Notes
S&P 500 (nominal)
~10.7%
~10.2%
~13.2%
Dividends reinvested
S&P 500 (real, inflation-adj)
~7–8%
~7–8%
~10–11%
Most relevant for SS comparison
60/40 Portfolio
~8–9%
~7–8%
~8–9%
Stocks/bonds blend
10-yr Treasury (nominal)
~4–5%
~3–4%
~2–4%
Risk-free baseline
Money Market / HYSA
~2–3%
~1–3%
~3–5%
2024–25 rates unusually high
Approximate historical averages; past performance does not predict future results. Nominal figures are before inflation adjustment. Real figures subtract ~3% average CPI. Sources: S&P 500 data via Shiller CAPE dataset; Treasury yields via FRED (Federal Reserve Economic Data).
Basic calculator: COLA is applied equally to both benefit streams from the date each one begins. This has two opposing effects: (1) the monthly difference between the two benefits grows over time, which helps the delayed option close the gap faster, and (2) the early claimer's head-start also grows during the waiting years because those early payments themselves receive COLA increases, creating a larger cumulative deficit that must be overcome. In practice the second effect is stronger, so a realistic COLA typically pushes the break-even age later than a pure no-COLA calculation.
Investment calculator: Assumes you invest every early payment at the stated annual return, compounded monthly. "Portfolio built" is the future value at the delayed start age. The annual portfolio return vs extra SS income shows whether the portfolio advantage can ever be overcome. At high return rates, the investment may earn more than the extra SS income each year — making break-even essentially never.
Survivor benefit notes: Survivor FRA assumed age 67 (born 1962+; use 66 if born 1945–1956). Survivor rate rises linearly from 71.5% at 60 to 100% at FRA per SSA formula. If the worker's benefit was reduced for early claiming, that reduced amount is the survivor's ceiling. Override the base amounts in the Surviving Spouse section to model any scenario (e.g. if your benefit was reduced by WEP or you have a different projected amount).
Not modeled: Taxes on SS benefits (up to 85% may be taxable above certain income thresholds), Medicare Part B premiums (~$185/mo deducted from your check), COLA on the projected survivor benefit, spousal benefit while both spouses are alive (separate from survivor benefit), Windfall Elimination Provision (WEP), or Government Pension Offset (GPO) for public employees.
Educational use only. This calculator is for illustrative purposes and does not constitute financial, tax, or Social Security claiming advice. Individual circumstances vary significantly. Consult a financial planner or Social Security advisor before making claiming decisions. The SSA's official retirement estimator is free and uses your actual earnings record.