Three things move at once, and they do not move in the survivor’s favor.
One Social Security check stops
A couple receives two benefits. A survivor keeps the larger of the two, not both. The smaller check simply ends. For many households that removes a substantial share of their Social Security income, overnight.
The tax brackets shrink to single
A surviving spouse generally files as a single taxpayer beginning the year after the death. The same income now runs through the narrower single brackets, with a smaller standard deduction. Less income can mean a higher tax bill. Practitioners call it the widow’s penalty, and it is easy to miss because nothing about the spending changed.
Spending does not halve
Two people living together do not cost twice one person. Housing, property tax, insurance, utilities and the car cost nearly the same for the survivor as for the couple. Spending falls, but far less than income does, and much less than half. The income can nearly halve while the costs barely move.
