Social Security Calculator
A Social Security calculator estimates your retirement benefits based on earnings history, claiming age, and other factors. Benefits can be claimed as early as 62 or delayed until 70 for larger payments.
Social Security Benefits by Claiming Age
If your Full Retirement Age (FRA) benefit is $2,000/month:
| Claiming Age | % of FRA | Monthly Benefit | Lifetime Difference | 6270%$1,400-30% 6375%$1,500-25% 6480%$1,600-20% 6586.7%$1,734-13.3% 6693.3%$1,866-6.7% 67 (FRA)100%$2,000Baseline 68108%$2,160+8% 69116%$2,320+16% | 70 | 124% | $2,480 | +24% |
Social Security Estimation
``javascript
function estimateSSBenefit(monthlyFRABenefit, claimingAge, fra = 67) {
let adjustment;
if (claimingAge < fra) {
// Reduction: 5/9% per month for first 36 months, 5/12% thereafter
const monthsEarly = (fra - claimingAge) * 12;
const first36Reduction = Math.min(36, monthsEarly) * (5/9/100);
const additional = Math.max(0, monthsEarly - 36) * (5/12/100);
adjustment = 1 - first36Reduction - additional;
} else if (claimingAge > fra) {
// Delayed credits: 8% per year (2/3% per month)
const monthsDelayed = (claimingAge - fra) * 12;
adjustment = 1 + (monthsDelayed * (2/3/100));
} else {
adjustment = 1;
}
const benefit = monthlyFRABenefit * adjustment;
return {
monthlyBenefit: benefit.toFixed(2),
annualBenefit: (benefit * 12).toFixed(2),
adjustmentPercent: ((adjustment - 1) * 100).toFixed(1) + '%'
};
}
console.log(estimateSSBenefit(2000, 70));
// { monthlyBenefit: '2480', annualBenefit: '29760', adjustmentPercent: '24%' }
``
Break-Even Analysis
Claiming late pays off if you live past the break-even age (typically 80-83). Consider health, family history, and whether you need income immediately.