IRA Inaction Pushes Heirs Into 35% Tax Bracket
Retirees who avoid converting traditional IRAs to Roth accounts are inadvertently passing a significantly larger tax liability to their heirs due to the SECURE Act's compressed distribution timeline.
A 72-year-old couple holding $900,000 in traditional individual retirement accounts faces a critical tax-planning window. If ignored, their inaction will pass a substantially larger tax burden directly to their children.
The core risk emerges from the SECURE Act's 10-year rule. This regulation mandates that non-spouse heirs must fully drain inherited IRAs within a decade. Because these distributions are added to the heirs' ordinary income, the inherited funds are likely to be taxed at their peak earning rates of 32% to 35%.
By choosing to do nothing, the couple is making an active decision to transfer an unrealized tax liability to the next generation. They currently occupy a much lower tax environment. For married couples filing jointly in 2026, the 12% bracket extends to $100,800 of taxable income. The 22% bracket runs up to $211,400, and the 24% bracket caps at $403,550. Factoring in the $32,200 standard deduction, the couple has clear mathematical room to convert traditional IRA assets into Roth accounts at these lower rates.
However, this optimal conversion window is narrowing. SECURE 2.0 legislation pushed the starting age for required minimum distributions to 73. Once RMDs begin, they will layer on top of the couple's existing Social Security and pension income, involuntarily pushing them into higher tax brackets. Furthermore, a 2.8% Social Security cost-of-living adjustment in 2026 will accelerate this timeline. As combined income rises, a larger portion of the couple's Social Security benefits becomes taxable.
Retirees typically experience a lifetime low in taxable income during the years immediately preceding RMDs. Their children, conversely, are usually in their prime working years. The forced 10-year liquidation perfectly aligns with the period when heirs are most likely to face the highest marginal rates of their careers.
For market professionals and wealth managers, the scenario underscores a costly disconnect in intergenerational tax planning. Failing to systematically convert traditional accounts up to the 22% or 24% bracket ceiling before RMDs begin represents a pure loss of tax arbitrage. Executing these conversions requires precise coordination to avoid triggering income-related monthly adjustment amount surcharges on Medicare premiums. Ultimately, passing on a traditional IRA is no longer the tax shelter it once was; it is a ticking clock on a compressed tax liability.
