Roth vs Traditional 401(k) on $150k income? (single)
Marcus, 35, in Austin, TX
exampleSingle, no kids · $150k/yr household income
They're maxing their 401(k) in Austin and unsure whether Roth or traditional is quietly costing them.
35, single, $150k/yr. Roth or traditional 401(k)? "Always Roth" isn't always right at this income. Here's the lifetime-tax difference, modeled year by year.
The setup
Age
35
Household income
$150,000/yr
Household
Single earner
Liquid savings
$66,000
Retirement savings
$198,000
Investing return
7%/yr
Lean Traditional, your 24% rate drops to ~7% in retirement
24% → 7%
Rate drops 17% in retirement
Rate Now
24%
Rate Retired
7%
Best Strategy
Current
NW Diff
$0
Your current effective rate of ~24% (engine-computed) drops to ~7% in retirement. Traditional saves taxes now when your rate is highest. The Current strategy produces $0 more at retirement.
| Scenario | Strategy | Retire NW | Lifetime Taxes | Retire SWR/mo | Coverage |
|---|---|---|---|---|---|
| All Trad | 100% Traditional | $12,303,122 ($5.1M in today's dollars) | $5.9M | $41,010 | 25 yrs |
| Current | Current mix | $12,053,931 ($5.0M in today's dollars) | $5.4M | $40,180 | 25 yrs |
| 50/50 | 50/50 Split | $11,731,304 ($4.8M in today's dollars) | $4.8M | $39,104 | 25 yrs |
| Roth 70% | Tilt Roth (70%) | $11,429,460 ($4.7M in today's dollars) | $4.2M | $38,098 | 25 yrs |
| All Roth | 100% Roth | $11,135,903 ($4.6M in today's dollars) | $3.7M | $37,120 | 25 yrs |
Tax laws change. Roth conversions, RMDs, and state tax changes can shift the calculus. This analysis uses current rates as a starting point.
Your real number depends on your savings, debts, and city. The averages above are a starting point. Model your exact situation and get your verdict.
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Roth or traditional 401(k) for a single household earning $150k?
Lean Traditional, your 24% rate drops to ~7% in retirement
Rate drops 17% in retirement
24% → 7%, modeled with Rightmont's projection engine for this exact scenario.
How was this calculated?
Rightmont runs your numbers through a year-by-year projection engine (taxes, compounding, Social Security, and your real cashflow) to model the outcome. Model your own version free in under a minute.
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For educational purposes only, not financial advice.