Social Security Spousal Benefits: Up to 50% of Your Spouse’s PIA

A spousal benefit is up to 50% of the worker’s primary insurance amount (PIA, their benefit at full retirement age), paid in full only if you claim at your own full retirement age. Claim at 62 with a full retirement age of 67 and it is 32.5%: the reduction is 25/36 of 1% a month for the first 36 months early and 5/12 of 1% for each month beyond (20 CFR §404.410(b)).

Enter both PIAs and the age you plan to claim: you get your monthly amount, how much of it is the spousal top-up, and whether your own benefit already beats it. For a benefit after your spouse dies, see survivor benefits.

Spousal benefit calculator

Age you claim
Your spouse must already be receiving benefits (divorced: see below)
Paid tool The spousal amount is fixed by the rules above; the decision that is not fixed is how claiming ages, portfolio withdrawals and taxes fit together across your retirement. Personal PRO runs your household’s plan with 10,000 simulations, the Roth conversion optimizer and the survivor years modelled with a mortality table, and gives you a PDF report you keep. A planning tool, not advice: the results move when your assumptions do. Plan claiming, withdrawals and taxes together — Personal PRO ($49) → See what is included →
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How much is the spousal benefit?

The full spousal benefit is one-half of the worker’s primary insurance amount (42 U.S.C. §402(b)(2) and (c)(3); 20 CFR §404.333). The PIA is what the worker gets at their own full retirement age, not what they actually receive: if they claimed early or late, your spousal amount is still figured on their PIA. Your full retirement age for a spousal benefit is the same one that applies to your own retirement benefit (20 CFR §404.409(a)): 67 if you were born in 1960 or later. The full retirement age by birth year page lists every year.

Spousal benefit as a share of the worker’s PIA, full retirement age 67 (born 1960 or later), computed with the reduction in 20 CFR §404.410(b)
Claim ageMonths earlyShare of worker’s PIAOn a $2,400 PIA
626032.5%$780
634835.0%$840
643637.5%$900
652441.7%$1,000
661245.8%$1,100
67 to 70050.0%$1,200

The early-claiming reduction

Claim before your full retirement age and the spousal benefit is cut by 25/36 of 1% for each of the first 36 months early and 5/12 of 1% for each month beyond 36 (20 CFR §404.410(b), under 42 U.S.C. §402(q)). Thirty-six months early costs 25% of the spousal amount; sixty months early, the most for anyone with a full retirement age of 67, costs 35%. These are steeper than the cuts to your own retirement benefit (5/9 of 1% for the first 36 months), so the spousal part of a combined benefit shrinks faster when you claim early.

The reduction does not apply in any month you have the worker’s child in your care who is entitled to child’s benefits (§404.410). The calculator assumes no child in care.

No delayed retirement credits on spousal benefits

Delayed retirement credits raise an old-age (own retirement) benefit by 2/3 of 1% a month after full retirement age (42 U.S.C. §402(w)). Nothing in the law raises a spousal benefit for waiting, so the spousal part peaks at 50% at your full retirement age. If you have no benefit of your own, claiming after your full retirement age gains nothing. The worker’s own delay does not raise your spousal benefit either, because it is figured on their PIA.

Your own benefit comes first

If you qualify on your own record too, Social Security pays your own benefit and adds only the excess of the spousal amount over it (42 U.S.C. §402(k)(3)). The excess is measured against your own PIA: half the worker’s PIA minus your PIA. Each part then carries its own adjustment. With a $2,400 worker PIA and your own PIA of $800, claiming at 62 (full retirement age 67) pays your own $800 × 70% = $560 plus the $400 excess × 65% = $260, for $820 a month. At 67 it is $800 + $400 = $1,200. If your own PIA is half the worker’s or more, you get no spousal top-up at any age.

Deemed filing: you cannot pick one benefit first

Since the Bipartisan Budget Act of 2015, anyone born on or after January 2, 1954 who applies for either their own retirement benefit or a spousal benefit is deemed to have applied for both, if eligible for both (42 U.S.C. §402(r)). The old strategy of taking spousal benefits while your own grew is closed to them, which is why the calculator starts both parts at the same claim age. One timing rule remains: you cannot receive a spousal benefit until the worker has filed for their own, except as a divorced spouse.

Divorced-spouse benefits

An ex-spouse can receive the same up-to-50% benefit on the worker’s record if all of these hold (20 CFR §404.331):

If you have been divorced for at least two years, the worker only has to be 62 or older; they do not have to have filed. The same reduction for claiming early applies. Your benefit does not reduce the worker’s benefit or that of their current spouse.

When the worker dies

The spousal benefit ends and a survivor benefit, worth up to 100% of what the worker was receiving, can take its place (20 CFR §404.338). The survivor rules differ: the earliest age is 60, the reduction is different, and the worker’s delayed credits do count. The survivor benefits calculator covers them. For the tax side of losing a spouse, the move from joint to single brackets, see the widow’s tax penalty.

Common questions

How much is the Social Security spousal benefit?
Up to 50% of the worker’s primary insurance amount (PIA), the benefit the worker would get at full retirement age. You get the full 50% only if you claim at your own full retirement age. Claiming at 62 with a full retirement age of 67 pays 32.5% of the worker’s PIA (20 CFR §404.410).
Does the spousal benefit grow if I wait past full retirement age?
No. Delayed retirement credits apply only to a worker’s own retirement benefit. The spousal part stops growing at your full retirement age, so waiting past it raises only your own benefit, if you have one.
Can I get my own benefit and a spousal benefit at the same time?
You are paid your own benefit first. If half of your spouse’s PIA is larger than your own PIA, the difference is added as a spousal top-up. You never receive both in full. If your own PIA is at least half of your spouse’s, there is no spousal top-up at any age.
Can I claim spousal benefits first and switch to my own later?
Not if you were born on or after January 2, 1954. Deemed filing, from the Bipartisan Budget Act of 2015, means an application for either benefit counts as an application for both, so they start together.
Can a divorced spouse get spousal benefits?
Yes, if the marriage lasted at least 10 years, you are unmarried now, you are 62 or older, and your own benefit is smaller than the spousal amount. If you have been divorced for at least two years, your ex-spouse only has to be 62 or older; they do not have to have filed. Your claim does not reduce their benefit or a current spouse’s.
Sources: 42 U.S.C. §402 (subsections (b), (c), (k), (q), (r), (w)); 20 CFR §404.331, §404.333, §404.409, §404.410; SSA’s spousal benefits page. Checked 2026-09-24. Estimates are before SSA’s rounding (reductions up to the next 10 cents, payments down to the dollar) and any family-maximum limit. QuantCalc is calculation software for education and planning, not financial advice; confirm your figures with the Social Security Administration.