04/28/2026
π° In 2026, the 12% tax bracket for married filing jointly covers income up to $100,800. For a single filer, it covers income up to $50,400. That difference alone can push a surviving spouse into the 22% bracket on the same income the couple was paying 12% on.
The standard deduction drops from $32,200 to $16,100. Pensions, RMDs, and investment income do not change when a spouse dies, but the deduction shielding that income from tax is nearly halved.
Social Security taxation thresholds have not been adjusted since 1984. For a joint filer, combined income above $32,000 triggers taxation of benefits. For a single filer, that threshold is $25,000. A surviving spouse with a pension and one Social Security check can cross the 85% taxable threshold faster than the couple did with two checks and higher thresholds.
The surviving spouse can file jointly in the year of death. A surviving spouse with a dependent child may also qualify for qualifying surviving spouse status for up to two additional years, which preserves joint-filer brackets and the higher standard deduction.
IRMAA surcharges are based on income from two years prior. A surviving spouse may not see the Medicare premium increase until the second or third year after the death, when the return is filed as single against the prior year's income. The 2026 IRMAA threshold is $109,000 for single filers versus $218,000 for joint filers.
Roth conversions before a spouse dies can reduce the surviving spouse's future RMDs and taxable income in single-filer years. The year of death is often the last year the couple can convert at joint-filer brackets.
The OBBBA added a senior tax deduction of up to $6,000 for taxpayers 65 and older for 2025 through 2028, but it phases out for single filers with modified AGI over $75,000, a threshold many surviving spouses will exceed.