The age schedule, and why the reduction is smaller than people expect. A surviving spouse who waits until their own survivor full retirement age receives 100% of the deceased worker's benefit amount. Claiming at the earliest age, 60, reduces it to 71.5% of that amount, permanently, with the percentages in between scaling by month. A surviving spouse who is disabled can claim from 50 at the same 71.5%. A survivor caring for the deceased worker's child under 16 may qualify at any age. Note that a 28.5% reduction across seven years of early claiming is gentler per year than the 30% reduction a retirement benefit takes across five, which is part of why claiming a survivor benefit early and switching later can work.
The survivor full retirement age is not the retirement full retirement age. Congress phased in the two increases on separate schedules. The survivor schedule reaches 67 for people born in 1962 or later, where the retirement schedule reaches 67 at birth year 1960. SSA maintains a separate table for each, and a widow or widower who uses the retirement table to find the month their survivor benefit becomes unreduced can be off by a year or more.
Delayed retirement credits are included, and this is the planning point. A spousal benefit is capped at 50% of the worker's primary insurance amount measured before any delayed retirement credits, so a worker who delays to 70 does nothing for a living spouse's benefit. A survivor benefit is different: it is based on what the worker was actually receiving or entitled to receive, credits and all. For a couple with unequal earnings, that turns the higher earner's decision to delay into life insurance for the survivor — the single cleanest argument for delaying that exists in Social Security.
The widow's limit works the other way. If the deceased worker claimed early and was receiving a reduced benefit, the survivor benefit is limited to the higher of what the worker was actually receiving and 82.5% of the worker's primary insurance amount. The 82.5% figure is a floor, not a second cap: because claiming at 62 with a full retirement age of 67 pays only 70% of the primary insurance amount, that floor is what actually governs in the earliest-claiming case. Even so, a decision to claim at 62 does not just shrink the worker's own check for their lifetime — it shrinks the survivor's check for the rest of the survivor's life too.
Switching strategies survive here. Deemed filing does not apply to survivor benefits, which means a survivor can claim one benefit now and the other later. Two patterns follow. Someone with a small earnings record of their own can take the survivor benefit early and let their own retirement benefit grow to 70. And someone whose own record is the larger one can take their own reduced benefit at 62 and switch to the unreduced survivor benefit at their survivor full retirement age. Which pattern is better depends on the relative sizes of the two benefits, and getting SSA's actual figures for both is the first step.
A separate one-time lump-sum death payment of $255 may be payable to an eligible surviving spouse or child, and it is a distinct benefit with its own rules. Surviving divorced spouses (after a marriage of at least ten years) and minor or disabled children have their own eligibility tests, and the family maximum limits total benefits payable on a single record.
How it is taxed, and the trap in it. A survivor benefit is taxed like any other Social Security benefit, through the provisional income calculation, with up to 50% or 85% included in taxable income. The trap is the change in filing status. The statutory base amounts are $32,000 and $44,000 for a joint return but only $25,000 and $34,000 for a single filer — and a widow or widower generally files jointly only for the year of death, then as a single filer afterward (unless a qualifying dependent allows otherwise). So a survivor with less total income than the couple had can find a larger share of her benefit taxable, at single-filer rates. This is the tax half of the widow's penalty, and it surprises people in the second year. Separately, a child's survivor benefit is the child's own income for tax purposes, not the surviving parent's, and it rarely produces any tax.