IRA Withdrawals Can Trigger 40.7% Tax Rate, Pushing Medicare Costs Above 100%
Updated
Updated · AOL · Aug 13
IRA Withdrawals Can Trigger 40.7% Tax Rate, Pushing Medicare Costs Above 100%
3 articles · Updated · AOL · Aug 13
Summary
$1,000 withdrawn from a traditional IRA can generate a $407 federal tax bill for some retirees because the distribution also makes $850 of Social Security benefits taxable.
That “tax torpedo” lifts effective marginal rates well above posted brackets—22.2% in the 12% bracket, 40.7% in the 22% bracket and 44.4% in the 24% bracket.
At the same time, crossing Medicare’s $218,000 IRMAA threshold for couples by $1 adds roughly $2,300 in annual Part B and Part D premiums, potentially pushing the marginal cost of a $1,000 withdrawal above 100%.
The hit is worsened by rules that still rely on 1984 Social Security income thresholds and by a 2.8% 2026 COLA, which leaves more benefits exposed to taxation.
Planners cited in the report point retirees to Roth conversions before age 73, careful MAGI management around IRMAA cliffs and using taxable brokerage assets before pretax IRA money.