How the estimate works
The calculator turns your average annual earnings (capped at the 2026 taxable maximum of $184,500) into an average indexed monthly earnings figure, then applies the Social Security Administration's bend-point formula: 90% of the first $1,286, 32% of the amount up to $7,749, and 15% above that. The result is your primary insurance amount — the monthly benefit at full retirement age, 67. Claiming earlier reduces it (about 30% less at 62); waiting adds 8% a year up to age 70. This is a simplified estimate; your official figures come from your Social Security statement.