58-Year-Old With $2.3M 401(k) Cuts Deferrals in Half: Here’s Why Brokerage Accounts Win at High Incomes Quick Read – High-income earner’s 38% deferral rate collapses to 24%-32% withdrawal rate, erasing traditional 401(k) arbitrage advantage. – Redirect above-match deferrals to…
xable brokerage account for 15%-20% capital gains rates and retirement access flexibility. – A 58-year-old investment banker pulling in $850,000 in W-2 income just cut his traditional 401(k) deferral roughly in half and is steering the difference into his taxable brokerage account. He already has $2.3 million in a traditional 401(k) and $1.4 million in a brokerage account, and he plans to retire at 62 in a high cost-of-living state
The decision that will drive his retirement outcome over the next four years is which bucket he saves into. The arbitrage that breaks down at high incomes Traditional 401(k) deferrals work when the marginal rate today sits well above the marginal rate when that dollar comes back out. For this banker, the gap has collapsed.
His top federal bracket is 32%, and his high-tax state adds roughly 6% in effective marginal tax. That stacks to about 38% on the last dollar deferred. The withdrawal rate is where the math turns against him.