Equal 401(k) Balances Can Produce Unequal Retirement Spending Power

A $900,000 traditional 401(k) may provide only $702,000 of spendable money after a 22% average federal tax rate, while the same balance in a Roth account is tax-free. Roth withdrawals do not count as income, so they avoid pushing up Social Security taxes, Medicare premium surcharges, or required minimum distributions. The gap can narrow if the traditional saver invests the upfront tax savings rather than spending them.
The article uses a hypothetical $900,000 balance to compare a pretax 401(k) with a Roth 401(k). Applying an illustrative 22% average federal tax rate, the traditional account leaves $702,000 spendable and $198,000 owed in taxes, while qualified Roth distributions remain outside gross income. Tax-free Roth treatment generally requires age 59½ and a five-tax-year period.
The comparison also notes that a traditional contribution generated an upfront deduction, whereas the Roth saver paid tax before contributing. Producing the same Roth balance therefore required more paycheck money over time. The spending difference may shrink if the traditional saver invests the upfront tax savings instead of spending them.
The comparison may shape how workers and retirees interpret retirement account statements, since equal balances could imply different after-tax spending capacity. Savers with traditional accounts may need to plan for taxes and income-linked costs, while Roth holders may have more predictable withdrawals. The example could also encourage earlier consideration of contribution choices and tax diversification, though individual outcomes will vary with rates, timing, and personal circumstances.