For single retirees, the Social Security claiming decision has a straightforward framework.
The choice is to claim as early as age 62 or wait until age 70. At 62, you take fewer benefits, and benefits are maxed out at 70. Health factors and stopping work earlier than expected are a couple of reasons someone might start to draw benefits before age 67, which is the full retirement age. If a person is still working, taking benefits at age 70 may make the most sense.
However, for married couples, that framework breaks down.1
A couple isn’t two individual decisions running side by side. It’s a coordinated strategy with interdependent outcomes, and the variables can multiply quickly.
Start with the survivor benefit.
The higher earner’s Social Security doesn’t disappear at death. It converts to the survivor benefit, which means that one claiming decision echoes for the rest of the surviving spouse’s life. In other words, the higher earner’s decision about when to start benefits matters as much for the spouse as it does for them.
Then there’s the age gap.
A five-year or ten-year difference between spouses can change the math quickly. For example, if the older spouse retires at 67 and the younger spouse at 57, then they may be drawing on retirement assets and only one person’s Social Security for several years. This might influence how investments are positioned both short and long-term.
Health asymmetry can also add to complexity.
What if one spouse has health issues? Now, you’re optimizing two different longevity timelines simultaneously. The decision on when to draw benefits will vary from person to person.
Finally, there’s the spousal benefit itself.
The spousal benefit allows a spouse with a more limited work history to claim up to 50% of the higher earner’s full retirement age benefit, even while both are still living. Spousal benefits can be one of the most difficult aspects of Social Security to understand.
Remember, spreadsheets are not designed to solve life’s issues. Spreadsheets will add up the numbers, but they don’t account for the variables that can matter most, such as health trajectory, longevity expectations, lifestyle goals, and what each spouse needs to feel comfortable about the future. That’s where preparation can make the difference.
- SSA.gov, 2026. Full retirement age depends on your birth year. For anyone born in 1960 or later, it’s 67. Those born between 1955 and 1959 have a sliding scale between 66 and 67.
