Social Security Spousal Benefit Calculator
Both records, and when the spouse would claim
Your result will appear here
Fill in the fields on the left and this updates as you type.
Know what this estimate is based on
- Jurisdiction
- General mathematical model
- Scope and limitations
- Long-range scenario, not a guarantee. Small changes in returns, inflation, fees, taxes, and withdrawal timing can materially change the result.
- Source links checked
- Jul 30, 2026
Built and regression-tested by Smart Tools Lab. It has not been individually reviewed by a licensed financial, tax, or legal professional.
How to use
- 01
Enter the higher earner's monthly benefit at their full retirement age. Everything on this page is a share of that one figure, so it is the number to get right — build it from an earnings record on the Social Security Benefit Estimator if you do not have a statement.
- 02
Enter the spouse's own monthly benefit at their own full retirement age, or leave it at zero if they never worked under Social Security. A spousal benefit tops a smaller record up to half the larger one; it is never paid instead of a bigger benefit of your own.
- 03
Enter the months before their own full retirement age the spouse would claim. Zero means claiming at full retirement age, and 60 means age 62 when full retirement age is 67 — the earliest a spousal benefit can start.
- 04
Optionally enter the higher earner's actual monthly check if they claimed early or late. It changes the household total and nothing else: the spousal half is a share of their full-retirement-age benefit, not of the check they receive.
- 05
Check the statutory pair — the 50% share and the spouse's full retirement age of 67 — then read the headline and the table beneath it, which prints the spouse's own benefit, the spousal top-up and the total at every claiming age from 62.
Formula
Spousal amount = 50% of the worker's benefit at the WORKER's full retirement age. Excess = max(0, that spousal amount − the spouse's own primary insurance amount). The spouse is paid two pieces: their own benefit × (1 − their own early-claim reduction), plus the excess × (1 − the spousal early-claim reduction). The own-benefit reduction is 0.5556% for each of the first 36 months early and 0.4167% for each month beyond; the spousal reduction is 0.6944% for each of the first 36 and 0.4167% beyond. Both stop at the spouse's full retirement age — there are no delayed retirement credits on a spousal benefit, so waiting past it adds nothing to the excess.
Example
A worker with a $2,404 benefit at full retirement age and a spouse with a $900 record of their own, claiming 60 months early at age 62. The spousal amount is 50% of $2,404, or $1,202, and the excess over the spouse's own $900 is $302. Sixty months early cuts the spouse's own benefit by 30.0%, to $630, and the top-up by 35.0%, to $196 — a check of $826 a month. Waiting to 67 would have paid the full $900 plus the full $302, or $1,202, so claiming at 62 costs $376 a month and $4,509 a year, permanently. Notice what $826 is as a share of the worker's benefit: 34.4%, not the 50% the rules are usually described as paying. Both checks together come to $3,230 a month, or $38,763 a year. Had the spouse never worked at all, the same claim at 62 would pay $781 and at 67 would pay the full $1,202.
Definitions
- Excess spousal benefit
- The amount by which half the worker's full-retirement-age benefit exceeds the spouse's own primary insurance amount. It is what SSA actually pays on top of the spouse's own benefit — never the full 50% as a replacement.
- Deemed filing
- The rule that filing for one retirement benefit files you for every other you are entitled to. It applies to anyone born in 1954 or later and closes the restricted application; it does not reach survivor benefits.
- Family maximum
- A ceiling of roughly 150% to 188% of the worker's primary insurance amount on everything payable on one record at once. A spouse and children together can reach it; a spouse alone almost never does, and a divorced spouse does not count toward it.
Good to know
Half of a number the spouse does not control
A spousal benefit is defined as up to 50% of the worker's benefit at the WORKER's full retirement age. Read that sentence carefully, because two of its clauses do most of the work. "At the worker's full retirement age" means the spousal half is a share of the worker's primary insurance amount and not of the check the worker actually receives: if the higher earner claims at 70 their own check rises by about a quarter and the spousal half does not move, and if they claim at 62 their own check falls and the spousal half still does not move. On a $2,404 worker benefit, the spousal amount is $1,202 whatever the worker does. "Up to" is the other clause, and it is why almost nobody receives exactly half. SSA does not pay a spouse the larger of the two benefits; it pays them their own benefit plus the excess of the spousal amount over their own primary insurance amount. A spouse with a $900 record of their own has an excess of $302, and is paid $900 plus $302, not $1,202. Arithmetically the two descriptions agree at full retirement age — which is why the shorthand survives — but they diverge the moment anyone claims early, because the two pieces are reduced on different schedules. A spouse who never worked under Social Security is the clean case: their own benefit is zero, the excess is the whole $1,202, and the shorthand and the mechanics finally say the same thing. One structural condition sits behind all of it: a spouse cannot claim on a record until the worker has filed. The single exception is a divorced spouse, who can claim on an ex-spouse's record whether or not the ex has filed.
Two pieces, two reduction schedules, one person
This is the part that makes a single "reduction percentage" impossible to quote, and it is why the page prints the spouse's own benefit and the spousal top-up as separate lines. Claiming early reduces both pieces, but at different rates. The spouse's own benefit follows the ordinary retirement schedule: 5/9 of 1% — 0.5556% — for each of the first 36 months before full retirement age, and 5/12 of 1% — 0.4167% — for every month beyond that, which comes to 30.0% at 60 months. The spousal top-up follows a steeper one: 25/36 of 1% — 0.6944% — for each of the first 36 months, then the same 0.4167%, which comes to 35.0% at 60 months. Both run at once, on the same person, in the same claim. On the default figures a $900 own benefit becomes $630 and a $302 top-up becomes $196, so the check is $826 rather than the $1,202 that waiting to full retirement age would have paid. That is $376 a month, $4,509 a year, given up permanently — the reduction does not lift when the spouse later reaches full retirement age. It is also worth looking at what $826 is as a share of the worker's benefit: 34.4%, against the 50% the rules are universally described as paying. The gap between those two numbers is the entire cost of claiming at 62, expressed in the vocabulary people actually use, and it is the reason the page prints the share as a stat rather than leaving it to be inferred.
Delayed credits stop at the door
Delayed retirement credits — the 8% a year that grows a benefit for every year of waiting between full retirement age and 70 — apply only to a benefit on your own record. They never apply to a spousal benefit. The spousal half tops out at $1,202 on the day the spouse reaches their own full retirement age, and every month they wait past it earns nothing at all on that piece. The practical consequence is sharp and widely missed: a spouse whose own record is small or nonexistent has no reason whatsoever to wait past full retirement age, because there is nothing left to grow, while the higher earner in the same household usually has every reason to. This asymmetry is the standard argument for the two members of a couple claiming at different ages rather than together. The higher earner's credits are worth 8% a year to their own check, and — the part that decides it — they carry over to the survivor benefit, which follows the worker's actual check rather than their primary insurance amount. So delay by the higher earner buys nothing for the spousal benefit while both are alive and everything for the survivor benefit afterwards, while delay by the lower earner past their full retirement age buys nothing in either direction. The one route to the full unreduced spousal amount at any age at all is the child-in-care benefit: a spouse caring for the worker's child who is under 16, or disabled, is paid the unreduced $1,202 whatever their own age. It ends the month that child turns 16, which for many households is an abrupt and unbudgeted cliff.
Deemed filing, divorce, and the ceiling on one record
Three rules close out the area. Deemed filing: anyone born in 1954 or later who files for one retirement benefit is deemed to have filed for every other they are entitled to, and is paid the combination. That closed the restricted application — the strategy of taking the spousal benefit at full retirement age and letting your own record grow to 70 — for everyone now reaching claiming age. It survives only for those born before 1954, and for survivor benefits, which deemed filing does not reach at all; the sequencing choice that this page cannot offer is genuinely available on the survivor page next door. Divorce: a marriage that lasted at least ten years, a divorce at least two years old and no remarriage, and the spousal benefit is payable on the same terms with one large relaxation — it does not require the ex-spouse to have filed. Claiming it takes nothing away from them, does not reduce anything payable to their current spouse, and is never disclosed to them. Multiple ten-year marriages each qualify, and you are paid on the best of them, not the last. The family maximum: everything payable on one worker's record at once is capped at roughly 150% to 188% of that worker's primary insurance amount. This page does not apply it, because a spouse alone almost never reaches it — a $1,202 spousal benefit against a $2,404 worker benefit is 150% of the record between them, right at the bottom of the range. It bites where there are children on the record as well, and a divorced spouse's benefit is expressly outside it, so an ex-spouse never crowds out a current family.
Frequently asked questions
How much is a spousal benefit?
Up to 50% of the worker's benefit at the worker's full retirement age — but almost nobody receives exactly that, because it is paid as a top-up rather than as a substitute. SSA pays the spouse their own benefit first, then adds the excess of the spousal amount over their own primary insurance amount. On a $2,404 worker benefit the spousal amount is $1,202; a spouse with a $900 record of their own is paid that $900 plus a $302 top-up, not $1,202. A spouse who never worked under Social Security is paid the whole $1,202, because the excess is the whole of it.
Why do the two halves of my check get reduced differently?
Because they are two different benefits with two different early-claiming schedules running on the same person. Your own benefit is cut by 5/9 of 1% a month for the first 36 months early and 5/12 of 1% after — 30.0% at 60 months. The spousal top-up is cut faster, by 25/36 of 1% a month for the first 36 and 5/12 of 1% after — 35.0% at the same 60 months. That is why a single reduction percentage cannot describe what happens to "the benefit": on the default figures a $900 own benefit becomes $630 and a $302 top-up becomes $196.
Does waiting past full retirement age grow the spousal benefit?
No, and this is the most valuable thing on the page. Delayed retirement credits — the 8% a year that grows a benefit between full retirement age and 70 — never apply to a spousal benefit. The spousal half tops out at $1,202 on the day the spouse reaches full retirement age and every month of waiting past it earns nothing on that piece. So a spouse whose own record is small has no reason at all to wait past 67, while the higher earner usually does: their credits are worth 8% a year to them, and they carry over to the survivor benefit afterwards.
Does the worker's claiming age change what the spouse gets?
Not the spousal half. It is 50% of the worker's benefit at THEIR full retirement age, not 50% of the check the worker actually receives — so if the higher earner claims at 70 their own check rises by about a quarter and the spousal half does not move, and if they claim at 62 their own check falls and the spousal half still does not move. Two things the worker's timing does change: the household total while both are alive, and the survivor benefit afterwards, which follows the worker's actual check rather than their full-retirement-age one.
Can I claim a spousal benefit now and switch to my own at 70?
Not if you were born in 1954 or later. Deemed filing means that filing for one retirement benefit files you for both, and you are paid the combination — so the old restricted application, which let someone take the spousal now and let their own record grow to 70, is closed. It survives in two places only: for those born before 1954, and for survivor benefits, which deemed filing does not reach at all. Notice too that a spouse cannot claim on a record until the worker has filed, with one exception below.
What about a divorced spouse?
A marriage that lasted at least ten years, a divorce at least two years old and no remarriage, and the benefit is payable on the same terms — with one relaxation that matters enormously in practice: it does not require the ex-spouse to have filed. Claiming it takes nothing away from them, does not reduce anything payable to a current spouse, and is never disclosed to them. A divorced spouse's benefit also sits outside the family maximum, the 150%-to-188% ceiling that caps everything else payable on one record at once.