# Roth vs Traditional 401(k) Retirement Balance

> A $900,000 Roth 401(k) avoids federal taxes while a traditional 401(k) leaves $198,000 in taxes.
- Title: Roth vs Traditional 401(k) Retirement Balance · 24/7 Wall St.
- Summary: A $900,000 Roth 401(k) avoids federal taxes while a traditional 401(k) leaves $198,000 in taxes. A $900,000 Roth 401(k) provides full $900,000 spendable…
- Keywords: roth 401k, traditional 401k, federal tax, retirement savings, tax-free withdrawals, 401k balance, taxable income, Roth, Traditional, 401, Retirement, Balance
- Source: 24/7 Wall St. — https://247wallst.com/personal-finance/2026/10/20/a-900000-traditional-401k-and-a-900000-roth-show-the-same-balance-but-can-buy-very-different-retirements
- Author: Gerelyn Terzo
- Published: 2026-10-20T22:00:13+00:00
- Read time: 1 min
- Topics: roth 401k, traditional 401k, federal tax, retirement savings, tax-free withdrawals, 401k balance, taxable income
## Matching Retirement Balances
Two retirees see identical $900,000 balances in traditional and Roth 401(k) accounts.
## Tax Impact on Withdrawals
Traditional withdrawals cost 22% federal tax, leaving $702,000 spendable versus $900,000 for Roth.
## Roth Tax-Free Advantage
Roth withdrawals qualify as tax-free after age 59½ and five tax years.
## Traditional Account Deductions
Traditional contributions provide upfront tax deductions, increasing spendable money over time.
## Roth Conversion Timing
Converting to Roth works best when tax rates today are lower than future Medicare costs.
## Low-Income Window Strategy
The years after retirement and before Social Security begin are cheapest for traditional withdrawals.
## Roth's Flexibility Benefit
Roth withdrawals don't count as taxable income, avoiding higher Medicare premiums.
## Long-Term Retirement Planning
Run the tax map annually to maximize retirement savings before conversion windows close.
## Key takeaway

A $900,000 Roth 401(k) provides full $900,000 spendable money versus $702,000 from a traditional 401(k) after 22% federal taxes.