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Social Security is the federal retirement program funded by payroll taxes throughout your working life. Your monthly benefit is based on your earnings history and the age at which you choose to claim. This page explains how the benefit is built in plain English and gives you a quick estimator using the SSA bend-point formula.
Enter your birth year, estimated average annual earnings, and your planned claim age. The estimator uses the 2024 bend-point formula to approximate your monthly benefit.
Educational estimate using a 2024 bend-point approximation and a single annual earnings figure in place of your actual 35-year indexed earnings history. Your real SSA benefit — available at ssa.gov — is based on your full earnings record. Verify your specific benefit with the Social Security Administration or a licensed financial advisor.
How the benefit is built
Your earnings history → AIME
The SSA takes your 35 highest indexed earnings years, adjusts them for wage inflation, and divides by 420 months to produce your Average Indexed Monthly Earnings (AIME). Years with no earnings count as zero, so gaps lower the average.
AIME → PIA via bend-point formula
Your AIME is split at two bend points ($1,174 and $7,078 in 2024). The SSA credits 90% of the first tier, 32% of the middle tier, and 15% above the second bend point. This progressive formula replaces more of low earners' income than high earners'. The result is your Primary Insurance Amount (PIA).
Claim age → monthly benefit
Claim at your Full Retirement Age and you receive 100% of your PIA. Claim at 62 and it is reduced by up to 30%. Wait until 70 and it grows by up to 24% via delayed retirement credits of 8% per year. The right age depends on your health, other income, and spousal coordination.
FAQ
If you're here from a search for "when to claim Social Security" or "Social Security benefit calculator", the answers below cover how the benefit is calculated, taxability, and the trade-offs between claiming early versus late. For your specific number, follow up with the estimator above and the SSA or a financial advisor.
Beyond the calculator
Quillwright tracks every pre-tax account in one place, projects each year's RMD against the IRS table, and flags Roth conversion, QCD, and harvesting opportunities in plain English — not portfolio-manager shorthand.
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Reminder
Educational only, not financial advice. The estimator above uses a simplified bend-point approximation and a single average earnings figure in place of your actual 35-year earnings history. Your actual SSA benefit — available at ssa.gov — is based on your indexed monthly earnings record. Verify your specific benefit with the Social Security Administration or a licensed financial advisor.