Social Security Calculator
Estimate your monthly Social Security benefit based on earnings and claiming age.
The Formula
PIA = 90% × first $1,174 of AIME + 32% × next $5,904 + 15% × remainder
Benefit = PIA adjusted for claiming age
PIA = 90% × $1,174 + 32% × $3,826 = $1,057 + $1,224
PIA = $2,281/mo at full retirement age
At 70: $2,829/mo (+24%)
How Social Security Benefits Are Calculated
Your Social Security retirement benefit is based on your earnings history — specifically, your 35 highest-earning years, adjusted for inflation. The Social Security Administration calculates your Average Indexed Monthly Earnings (AIME) and applies a progressive formula to determine your Primary Insurance Amount (PIA) — the monthly benefit you receive if you claim at your full retirement age. For anyone born in 1960 or later, full retirement age is 67.
When to Claim: The Decision That Matters Most
You can start Social Security as early as 62 or delay as late as 70. Claiming at 62 permanently reduces your benefit — by up to 30% compared to claiming at full retirement age. Delaying past full retirement age increases your benefit by 8% per year until age 70. Claiming at 70 instead of 62 can result in a monthly benefit more than 75% higher for the rest of your life. The right age to claim depends on your health, other income sources, and longevity expectations.
The Break-Even Analysis
The break-even age is when cumulative lifetime benefits from waiting exceed what you would have collected by claiming earlier. Claiming at 62 starts benefits sooner but at a lower amount for a longer period. Claiming at 70 starts later but at a much higher monthly amount. The break-even between claiming at 62 versus 70 is typically around age 80–82. If you have good reason to expect to live past that age, delaying usually maximizes total lifetime benefits.
Frequently Asked Questions
At what age should I take Social Security?
It depends on health, finances, and other income. If you are in poor health, need the income now, or have reason to expect a shorter-than-average lifespan, claiming at 62 may make sense. If you are healthy, have other income, and expect to live into your 80s or beyond, waiting until 70 typically maximizes total lifetime benefits. A financial advisor can model the break-even analysis for your specific situation.
Are Social Security benefits taxable?
Yes, partially. Up to 85% of your benefits may be taxable depending on your combined income — AGI plus nontaxable interest plus half of your Social Security benefits. If that total is under $25,000 for a single filer or $32,000 for married filing jointly, your benefits are generally not taxed. Above $34,000 single or $44,000 married, up to 85% of benefits are included in taxable income.
What is the Social Security full retirement age?
Full retirement age depends on birth year. For anyone born in 1960 or later, FRA is 67. For those born between 1955 and 1959, FRA is between 66 and 2 months and 66 and 10 months. Claiming before FRA permanently reduces your benefit. Delaying past FRA permanently increases it by 8% per year up to age 70.
Can I collect Social Security while still working?
Yes, but if you claim before full retirement age and continue working, benefits may be temporarily reduced. In 2024 you can earn up to $22,320 per year before benefits are withheld. Above that, $1 is withheld for every $2 earned. However, any withheld benefits are recalculated upward when you reach FRA to reflect the months of reduced payments. After FRA, you can earn any amount without reduction.
Does Social Security keep up with inflation?
Yes. Benefits are adjusted annually through Cost of Living Adjustments (COLAs) based on the Consumer Price Index for Urban Wage Earners and Clerical Workers. In years of high inflation, COLAs can be significant — 8.7% in 2023. This automatic inflation protection is one of Social Security's most valuable features and distinguishes it from most other fixed income sources.