The Key Ages
- Age 62: Earliest possible claim — but your benefit is permanently reduced by up to 30%
- Full Retirement Age (FRA): 67 for anyone born in 1960 or later — this is your full, unreduced benefit
- Age 70: Maximum benefit — delayed credits of 8%/year accrue from FRA to 70, making the benefit up to 24% higher than at FRA
| Claim Age | Monthly Benefit (example: $1,800 at FRA) | Annual Benefit |
|---|---|---|
| 62 | ~$1,260 (30% reduction) | ~$15,120 |
| 64 | ~$1,440 (20% reduction) | ~$17,280 |
| 67 (FRA) | $1,800 | $21,600 |
| 70 | ~$2,232 (24% increase) | ~$26,784 |
The Break-Even Analysis
Claiming early gives you more years of payments but smaller checks. Waiting gives you fewer years but larger checks. The break-even point (when total lifetime benefits are roughly equal) is typically around age 78–80 when comparing 62 vs. 67, and similar when comparing 67 vs. 70.
If you expect to live past 80, waiting tends to produce higher lifetime income. If your health is poor and you don't expect to reach that age, claiming earlier makes more mathematical sense.
When Claiming Early Makes Sense
- You have serious health issues and limited life expectancy
- You have no other retirement income and genuinely need the money to live
- You're in a dual-income household and the lower earner claims early while the higher earner waits to maximize the survivor benefit
The Survivor Benefit Connection
For married couples, the higher earner's decision is especially important: your spouse inherits the higher of your two benefits at your death. Waiting to claim on the higher benefit maximizes the survivor benefit — providing lifetime income protection for the surviving spouse.
Social Security and Your KC Retirement Picture
Social Security was designed to replace roughly 40% of pre-retirement income for average earners. Your KC 401(k) (with the employer match and potential profit sharing) is intended to cover the gap. Together, they can provide a solid foundation — but the math only works if you optimize both. Don't claim Social Security early just because you can.