The tax system compresses tax brackets for a surviving spouse, an effect that usually becomes apparent in the calendar year following the spouse’s death. In the year of death, the surviving spouse can still file a joint return.
If the survivor has a dependent child, Qualifying Surviving Spouse status preserves the joint tax brackets and standard deduction for two additional years. Without a dependent child, the survivor must file as a single taxpayer. This halves the width of the tax brackets and reduces the standard deduction by 50% (Table 6.1). For 2026, the top 37% ordinary income tax bracket begins at $640,600 for single filers, compared to $768,700 for married couples filing jointly. The survivor retains the same required minimum distributions (RMD) and investment income, meaning they reach higher tax brackets much sooner.
Furthermore, retirees face increased Medicare premiums. The Income-Related Monthly Adjustment Amount (IRMAA) increases Part B and Part D premiums based on a single filer’s adjusted gross income with thresholds that are lower than joint thresholds. Because IRMAA uses a two-year lookback, a survivor’s premiums may be calculated using joint income from a period when the deceased spouse was alive. To correct this, file Form SSA-44 to report the death of a spouse as a life-changing event, requesting a premium recalculation based on current income.
To mitigate this bracket compression, consider accelerating income into the year of the spouse’s death. This is the optimal window to realize capital gains, execute Roth conversions, and take taxable retirement account distributions under the joint brackets.