# Retiree's 401(k) Tax Bill Comparison

> Retiree's $350k 401(k) leaves tax bill 2.7x higher for son in 32% bracket than parents in 12% bracket.
- Title: Retiree's 401(k) Tax Bill Comparison · 24/7 Wall St.
- Summary: Retiree's $350k 401(k) leaves tax bill 2.7x higher for son in 32% bracket than parents in 12% bracket. A retiree in the 12% federal tax bracket who dies with…
- Keywords: 401k, tax bracket, federal tax, roth conversion, traditional ira, tax bill, son, retiree, fidelity, 2025, 2026, 12% bracket
- Source: 24/7 Wall St. — https://247wallst.com/personal-finance/2026/10/19/a-retiree-in-the-12-bracket-who-dies-with-350000-in-a-401k-and-leaves-it-to-a-son-in-the-32-bracket-hands-the-family-nearly-three-times-the-tax-bill-converting-it-over-ten-years-would-have-cost
- Author: David Beren
- Published: 2026-10-19T13:43:37+00:00
- Read time: 1 min
- Topics: 401k, tax bracket, federal tax, roth conversion, traditional ira, tax bill, son, retiree, fidelity, 2025, 2026, 12% bracket
## Retiree's 401(k) Tax Bill
A retiree in the 12% federal tax bracket dies with $350,000 in a 401(k) and leaves it to a son in the 32% bracket.
## Typical 401(k) Balance
Fidelity's data shows average 401(k) balances at $251,400 for savers aged 65 to 69 and $250,000 for those 70 and older.
## Pre-Tax 401(k) Balance
Almost all $350,000 is pre-tax, as only 12.2% of Baby Boomers use a Roth 401(k).
## Son's 10-Year Tax Rule
The son must fully distribute the account within 10 years, taxed at 32% per year.
## Son's 10-Year Tax Bill
The son's $35,000 annual withdrawal costs $11,200 in federal tax over ten years at 32%.
## Parents' Roth Conversion
Parents could convert $35,000 annually at 12% for $4,200 in federal tax per year.
## Tax Bill Comparison
The son's tax bill is 2.7 times the parents' bill, a $70,000 difference over ten years.
## Growth Impact
Growth inside a converted Roth is tax-free, while inherited traditional 401(k) growth is taxed at the son's rate.
## Family Action Steps
Families can compare brackets, convert up to the 12% bracket ceiling, and pay tax from other savings.
## Key takeaway

A retiree in the 12% federal tax bracket who dies with $350,000 in a 401(k) and leaves it to a son in the 32% bracket faces a tax bill 2.7 times higher than if converted to Roth over ten years.