What is The Actuarial Mathematics of Social Security?
Mathematical Foundation
Laws & Principles
- The 62 Penalty (FRA = 67): For anyone born 1960 or later, claiming at 62 permanently reduces your benefit by 30%. You receive 60 extra checks vs someone who waits to 67, but each check is significantly smaller — forever.
- The 70 Bonus: For every year past FRA you delay, SSA guarantees 8% per year in Delayed Retirement Credits — a permanent 24% boost for waiting from 67 to 70.
- The Investment Alternative: This baseline math assumes early payments are spent. If claimed at 62 and invested at S&P 500 rates (8-10%), the break-even age shifts significantly deeper into the 80s or 90s, sometimes making early claiming superior even for healthy retirees.
Step-by-Step Example Walkthrough
" $2,500/month FRA benefit at age 67. Comparing claim at 62 ($1,750/mo) vs 67 ($2,500/mo). "
- Head Start: $1,750/mo × 60 months (ages 62-67) = $105,000 banked before the 67-claimer collects a single dollar.
- Monthly Catch-Up: $2,500 - $1,750 = $750/month advantage for the delayed claimer.
- Break-Even: $105,000 ÷ $750/month = 140 months = 11 Years 8 Months after age 67.