# The Social Security Number Most Couples Never Calculate (and Should)
Most single workers follow a straightforward Social Security rule: wait until age 70 to claim and maximize your monthly benefit. But married couples face a more complex decision that requires calculating a number many never compute at all.
That missing number is the household claiming strategy breakeven point. This is the age at which one spouse's delayed claiming benefit overtakes what the couple would have received had they both claimed earlier. Missing this calculation costs many couples tens of thousands of dollars in lifetime benefits.
Here's why the math matters. When you claim Social Security at 62, you receive roughly 70 percent of your full retirement age benefit. Wait until your full retirement age (between 66 and 67 for most people born in the 1950s), and you get 100 percent. Delay until 70, and your benefit grows to 124 percent of what you'd receive at full retirement age. For every year past full retirement age you wait, your benefit rises approximately 8 percent annually.
For couples, the decision branches into multiple scenarios. One spouse might benefit from claiming early while the other delays. Another might involve both waiting. Or one spouse might claim while the other suspends benefits to trigger a larger claim later. The Government Pension Offset and Windfall Elimination Provision, two rules that can reduce spousal and survivor benefits, further complicate the picture for couples with government pensions.
The breakeven age differs for every couple based on individual life expectancy estimates, health status, and household income. A couple where both spouses are healthy and come from families with longevity should lean toward delayed claiming. One spouse in excellent health paired with another facing health challenges might benefit from a mixed strategy: one person claims at full retirement age while the healthier spouse waits until 70.
Social Security's online tools provide a starting point. The agency's Quick Calculator offers rough estimates. The full retirement estimator at ssa.gov requires creating an account but delivers personalized projections based on your actual earnings record. Many couples also work with financial advisors who run Monte Carlo simulations to test different claiming scenarios against various market conditions and longevity assumptions.
The stakes climb with each year of delay. A couple who claims at 62 instead of 70 loses eight years of payments but receives them earlier. If both spouses live into their mid-80s, the couple who waited typically comes out ahead. If one dies in their early 70s, the decision looks different.
Survivor benefits add another layer. When a higher-earning spouse dies, the surviving spouse receives up to 100 percent of what that person was receiving in benefits at death. This survivor protection incentivizes the higher earner to delay claiming, since higher benefits at death translate to more protection for a surviving spouse.
Couples benefit from running projections side by side rather than each spouse optimizing independently. A spreadsheet comparing three or four realistic scenarios costs nothing but can reveal thousands of dollars in differences across a 30-year retirement. That calculation number most couples never compute often represents the difference between a comfortable retirement and a stretched one.