Break-even calculator.

How claiming age changes the benefit

Social Security is designed so that lifetime expected benefits are roughly the same across claim ages for an average life expectancy. The monthly amount, however, is very different. Claiming before Full Retirement Age (FRA) permanently reduces the monthly benefit. Delaying past FRA permanently increases it. The math:

• Early: 5/9 of 1% reduction per month for the first 36 months before FRA (6.67% per year), then 5/12 of 1% per month for any additional months (5% per year).
• Delayed: 8% per year of delayed retirement credits from FRA up to age 70. Credits stop at 70; delaying beyond adds nothing.

For someone with a FRA of 67 and a $3,000 FRA benefit, claiming at 62 lowers the monthly benefit to roughly $2,100, while delaying to 70 raises it to roughly $3,720. That is a 77% difference in monthly income, for the same underlying earnings record.

What break-even analysis means

A break-even analysis stacks cumulative lifetime benefits by claim strategy and asks: at what age does the later claim overtake the earlier one? If the answer is age 79 and the client has a family history of living into the mid-90s, the later claim wins in most scenarios. If the answer is age 82 and the client is in poor health, the earlier claim is more likely to produce more lifetime dollars.

Break-even math treats a dollar today the same as a dollar decades from now. A more thorough analysis discounts future benefits to a present value, but the break-even framing is useful because it is intuitive for clients and it exposes the rough shape of the tradeoff quickly.

Why break-even is not the only factor

Longevity is the biggest driver, but it is not the only one:

• Spousal and survivor benefits. The higher earner's claim age sets the survivor benefit floor. Delaying the higher earner's claim can significantly raise the surviving spouse's lifetime income.
• Taxes. Up to 85% of benefits can be taxable. Coordinating the claim age with IRA withdrawals and Roth conversions can change effective tax rates for a decade or more.
• Medicare IRMAA. A higher Social Security benefit combined with IRA distributions can push modified adjusted gross income across IRMAA cliffs and trigger Part B and Part D surcharges.
• Bridge income. Delaying Social Security usually requires drawing more from other accounts in the interim. That is often the right tradeoff, but it needs to be modeled, not assumed.

Using the results

Enter the estimated monthly benefit at Full Retirement Age (the client's Social Security statement at ssa.gov shows this directly), set the FRA, and let the tool compute the early and delayed amounts. Override the amounts if you have exact figures. The cumulative table makes it easy to see how sensitive the answer is to longevity assumptions: shift the "project through age" up or down by five years and watch the break-even winner change.