Two benefits, one at a time. The order is yours.

The facts, in one place.

Six quotable sentences from the regulations on survivor benefits.

1. A surviving spouse can claim a survivor benefit from age 60 (50 if disabled), reduced by up to 28.5 percent, or wait until survivor full retirement age for the deceased's full benefit. The reduction is spread evenly over the months in between (20 CFR 404.410(c)).
2. Survivor full retirement age runs two birth years behind the retirement table: 66 for those born 1945 through 1956, rising two months a year, 67 for those born in 1962 or later (20 CFR 404.409(b)). A survivor born in 1960 reaches it at 66 and 8 months.
3. The survivor benefit and the survivor's own retirement benefit are two separate entitlements, and only the larger is paid. But they can be taken in sequence: one first, the other later when it has grown, which is what makes the timing a choice.
4. The two orders are: the survivor benefit at 60 while the survivor's own benefit grows with delayed credits to 70; or the survivor's own benefit at 62 while the survivor benefit waits for full retirement age. Which wins depends on which of the two is larger at its best, and on how long the survivor lives.
5. Example: a survivor born in 1964 whose late spouse's full benefit was $2,800 a month and whose own is $2,200: the survivor benefit at 60 is $2,002; their own at 70 is $2,728. Taking the survivor benefit first and switching at 70 pays $897,688 through 90 against $868,000 the other way.
6. If the deceased had claimed a reduced retirement benefit, the survivor benefit is capped at the larger of that reduced amount or 82.5 percent of the full amount (20 CFR 404.338(c)); and a survivor who remarries before 60 loses the survivor benefit while married.

The survivor benefit by claiming age.

Survivor full retirement age and the reduced share at 60, 62, and 64.

How the sequence works.

A surviving spouse is entitled to two benefits: the survivor benefit, which is the deceased's full retirement benefit, and their own retirement benefit on their own record. Only the larger is paid at any time. What makes the timing a decision is that each can be taken early at a reduction or later at its full or enlarged amount, and that taking one does not stop the other from growing.

The survivor benefit can begin at 60, reduced by 28.5 percent, and reaches its full amount at survivor full retirement age; it never grows past that. The survivor's own benefit can begin at 62, reduced, and keeps growing with delayed credits to 70. So the sequence that usually wins is to take first whichever will be the smaller of the two at its best, and to switch to the larger one once it is fully grown. The calculator draws both orders and finds where they cross.

Methodology.

1. Inputs. The deceased's benefit at full retirement age (their primary insurance amount), the survivor's own, the survivor's year of birth, and the age to plan to.
2. The survivor benefit. At survivor full retirement age (20 CFR 404.409(b)) the full amount; earlier, reduced by 28.5 percent times the months early over the months between 60 and that age (404.410(c)(1)), so 71.5 percent at 60 whatever the birth year.
3. The survivor's own benefit. The claiming engine already on this site: five-ninths of a percent a month for the first 36 months early and five-twelfths beyond (404.410(a)), two-thirds of a percent a month of delayed credit to 70 (404.313).
4. The two orders. A: the survivor benefit at 60, then the survivor's own at 70 if it is larger. B: the survivor's own at 62, then the full survivor benefit at survivor full retirement age if it is larger. Each is summed month by month in today's dollars to the planning age; the crossover is the age after which the eventual leader stays ahead.
5. Validation. The 71.5 percent floor, a mid-way reduction for a 1962 birth year, the survivor full-retirement-age table at two rows, monotonic cumulative totals, and a pinned cumulative at 62. A transcription error fails the build.
6. Not modeled. Cost-of-living adjustments (both benefits rise alike, which does not change the order), the earnings test before full retirement age, income tax, remarriage before 60, a deceased who had claimed early (the 82.5 percent widow's limit), disability, children's benefits, the family maximum, and claiming in months rather than whole years. Educational, not advice.

Sources.

1. 1. Code of Federal Regulations (Cornell LII), 20 CFR § 404.331 and § 404.336 — Divorced spouse's and surviving divorced spouse's benefits. That a divorced spouse is entitled on the former spouse's record if the marriage lasted at least ten years, the claimant is unmarried and at least 62, and the former spouse is entitled to benefits, or is at least 62 and the divorce is at least two years old (404.331); and that a surviving divorced spouse of a ten-year marriage has the same benefit as a widow or widower (404.336). Retrieved September 6, 2026; verified September 6, 2026.
2. 2. Code of Federal Regulations (Cornell LII), 20 CFR § 404.333 — Wife's and husband's benefit amounts. That a spouse's monthly benefit is one-half of the insured person's primary insurance amount before any reduction for age. Retrieved September 6, 2026; verified September 6, 2026.
3. 3. Code of Federal Regulations (Cornell LII), 20 CFR § 404.338 — Widow's and widower's benefits amounts. That a survivor's benefit is the deceased's primary insurance amount at full retirement age, and that if the deceased had taken a reduced retirement benefit the survivor's benefit is limited to the larger of that reduced amount or 82.5 percent of the primary insurance amount (paragraph (c)). Retrieved September 6, 2026; verified September 6, 2026.
4. 4. Code of Federal Regulations (Cornell LII), 20 CFR § 404.409 — What is full retirement age?. The full-retirement-age table by year of birth for retirement benefits (66 for 1943–1954, rising two months a year through 1959, 67 for 1960 and later), paragraph (a); and for widow's and widower's benefits, two birth years behind it (66 for 1945–1956, 67 for 1962 and later), paragraph (b). Retrieved September 4, 2026; verified September 4, 2026.
5. 5. Code of Federal Regulations (Cornell LII), 20 CFR § 404.410 — How does SSA reduce my old-age benefits when my entitlement begins before full retirement age?. The early-claiming reduction: 5/9 of one percent for each of the first 36 months before full retirement age and 5/12 of one percent for each month beyond 36. Retrieved September 4, 2026; verified September 4, 2026.
6. 6. Code of Federal Regulations (Cornell LII), 20 CFR § 404.313 — What are delayed retirement credits and how do they increase my old-age benefit amount?. The delayed retirement credit of 2/3 of one percent for each month of delay past full retirement age for those born in 1943 or later, accruing until the month age 70 is reached. Retrieved September 4, 2026; verified September 4, 2026.

Revision history.

This tool reads the Social Security record; its history is below.

September 6, 2026

Added the spousal benefit fraction (404.333) and its reduction (404.410(b)) for the spousal benefit tool.

September 6, 2026

Added the survivor full-retirement-age table (404.409(b)), the 28.5 percent survivor reduction from age 60 (404.410(c)), and the widow's limit (404.338(c)) for the survivor benefit timing tool.

September 4, 2026

First release: the full-retirement-age table, the early reduction fractions, and the delayed retirement credit transcribed from 20 CFR 404.409, 404.410, and 404.313, with the claiming calculator built on them.

Canonical address: https://consideratecapital.com/tools/survivor-benefit-timing