Social Security Calculator

Social Security benefits are calculated using your highest 35 years of earnings, adjusted for inflation. The Social Security Administration first indexes each year's earnings to account for wage growth, then averages your top 35 years to determine your Average Indexed Monthly Earnings (AIME). Your AIME is then run through a benefit formula with progressive "bend points" that replace a higher percentage of lower earnings and a smaller percentage of higher earnings. The resulting amount is your Primary Insurance Amount (PIA), which is the monthly benefit you receive if you claim at your full retirement age.

You can claim Social Security as early as age 62, at your full retirement age (FRA) of 66 to 67 depending on birth year, or as late as age 70. Claiming at 62 permanently reduces your benefit by up to 30% compared to your FRA amount, while delaying past FRA increases it by 8% per year until age 70. For someone with an FRA benefit of $2,000 per month, that means roughly $1,400 at age 62 versus $2,480 at age 70. The breakeven point where delayed claiming overtakes early claiming typically falls between ages 78 and 82, so your health, other income sources, and life expectancy should heavily influence your decision.

Bend points are the dollar thresholds in the Social Security benefit formula that determine how much of your earnings are replaced by benefits. In 2024, the first bend point is $1,174 and the second is $7,078 of monthly earnings. The formula replaces 90% of AIME up to the first bend point, 32% of AIME between the first and second bend points, and 15% of AIME above the second bend point. This progressive structure means lower-income workers receive a higher percentage of their pre-retirement income from Social Security, while higher earners receive a larger dollar amount but a smaller replacement rate.

Several strategies can help you maximize your lifetime Social Security benefits. Working at least 35 years ensures no zero-earning years drag down your average, and higher earnings in later career years can replace lower-earning early years in the calculation. Delaying benefits to age 70 provides the largest monthly check, which is particularly valuable if you expect to live past your early 80s. Married couples should coordinate claiming strategies, as the higher earner delaying benefits also increases the survivor benefit for the lower-earning spouse. Minimizing taxable income in retirement can also reduce the portion of Social Security benefits subject to federal income tax.