The $3 Million 401(k) Problem High Earners Don’t See Coming

6 days ago 5

David Beren

Fri, March 27, 2026 astatine 8:45 AM CDT 5 min read

Required minimum distributions (RMDs) starting astatine property 73 connected a $3 cardinal 401(k) make a compounding taxation collision: the archetypal $113,000 withdrawal grows to $131,600+ by property 75 portion triggering Social Security taxation, Medicare IRMAA surcharges up to $12,710 annually, and an effectual marginal taxation complaint adjacent 40%, making the archetypal 37-cent taxation deduction during highest earning years outgo importantly much connected withdrawal.
Retirees with $3 million+ balances should usage the spread years betwixt property 65-67 status and property 73 RMD commencement to person $200,000 annually to Roth accounts, eliminating astir $1.2 cardinal from the RMD basal and reducing archetypal age-73 forced withdrawals by $45,000+ annually portion avoiding aboriginal taxable events.
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You spent 30 years gathering a $3 cardinal 401(k), but, astatine 73, the IRS volition commencement dismantling it connected its schedule. The forced withdrawals are called required minimum distributions, and astatine that balance, they make a taxation collision that astir precocious earners ne'er modeled during the accumulation phase.

The IRS calculates your RMD by dividing your anterior year-end equilibrium by a beingness expectancy origin from the Uniform Lifetime Table. When you crook 73, that origin is 26.5. This means that connected a $3 cardinal balance, the mathematics produces a first-year RMD of astir $113,000.

The portfolio apt keeps growing. Assuming 6% yearly growth, the equilibrium climbs to astir $3.18 cardinal the pursuing year. But the organisation origin besides shrinks: astatine property 74, it is 25.5, pulling retired astir $124,700. At property 75 (factor 24.6), the RMD connected a astir $3.24 cardinal equilibrium reaches astir $131,600. The withdrawals turn faster than astir radical expect, adjacent arsenic the portfolio holds its value.

Have You work The New Report Shaking Up Retirement Plans? Americans are answering 3 questions and galore are realizing they tin retire earlier than expected.

The existent harm comes from what that $113,000 RMD lands connected apical of. Add a humble Social Security payment and a tiny pension, and a azygous filer’s income tin easy transverse $170,000. While this falls successful the 24% national bracket (which, successful 2026, caps astatine $201,775), the "hidden" costs are overmuch higher.

First, 85% of Social Security benefits go taxable erstwhile combined income exceeds IRS thresholds. Second, IRMAA surcharges activate. IRMAA (Income-Related Monthly Adjustment Amount) is Medicare's income-based premium surcharge. It uses a two-year lookback, meaning your 2024 taxation instrumentality determines your 2026 premiums.

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