A $37,000 required minimum distribution can push taxable income up sharply, nearly doubling effective tax rates for retirees.
A 73-year-old retiree with a $980,000 traditional IRA faced a 40 percent effective tax rate after her first required minimum distribution of $37,000. The withdrawal triggered taxation on 85 percent of her $30,000 Social Security income, inflating taxable earnings.
The IRS Uniform Lifetime Table calculates RMDs by dividing the IRA balance by 26.5 at age 73. Each additional dollar withdrawn generates $1.85 in taxable income, pushing marginal rates above 40 percent despite a stated 22 percent bracket.
Retirees can mitigate the impact through qualified charitable distributions, spending brokerage cost basis, or pre-73 Roth conversions.