Guide · updated 2026-08-03
How a Spousal Benefit Is Calculated
A spousal benefit is worth up to half of the other person's full-retirement-age amount, and several things people expect to increase it do not. It is not enlarged by the worker's delay, it does not add to the worker's own check, and claiming it early reduces it permanently.
The ceiling is half of the worker's full-retirement-age amount
A spousal benefit is calculated from the worker's benefit at their full retirement age, not from what the worker actually receives. The maximum is half of that figure, reached only if the spouse claims at their own full retirement age. It is not an addition to the household on top of everything else, which is how people often picture it. If the spouse's own retirement benefit is larger than the spousal amount, they simply receive their own. The spousal calculation then produces nothing extra.
The worker's delay does not raise it
Delayed retirement credits increase the worker's own benefit and do not increase the spousal benefit calculated on their record. This surprises households who delay specifically to lift both figures. The delay does raise the amount a surviving spouse can step up to later, so it is far from pointless. But during both lifetimes the spousal benefit stays anchored to the full-retirement-age amount. Separating those two effects is the main thing to get right when planning jointly.
Claiming early reduces it, on a steeper schedule than you might expect
A spouse who claims before their own full retirement age takes a permanent reduction. The schedule for that reduction is not the same as the one used for a worker's own retirement benefit. There is also no equivalent of delayed retirement credits on the spousal side: waiting past full retirement age to claim a spousal benefit adds nothing at all. The amount is maximized at full retirement age and stays flat afterward.
The worker generally has to have claimed
In most cases a spousal benefit cannot begin until the worker has filed for their own. That links the two decisions, whether or not the household wants them linked. Divorced spouses are the notable exception. After a marriage of at least ten years, and two years since the divorce, a divorced spouse may claim on the record without the former spouse having filed. Doing so takes nothing away from that person or from their current spouse.
Official sources for this guide
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