Roth vs Traditional 401(k) on $500k income? (married)
Aisha & Leah, 35 and 35, in Los Angeles, CA
exampleMarried, no kids yet · $500k/yr household income
They're maxing their 401(k) in Los Angeles and unsure whether Roth or traditional is quietly costing them.
35, married, $500k/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
$500,000/yr
Household
Married, dual income
Liquid savings
$220,000
Retirement savings
$660,000
Investing return
7%/yr
Lean Traditional, your 30% rate drops to ~9% in retirement
30% → 9%
Rate drops 21% in retirement
Rate Now
30%
Rate Retired
9%
Best Strategy
Current
NW Diff
$0
Your current effective rate of ~30% (engine-computed) drops to ~9% 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 | $17,508,857 ($7.2M in today's dollars) | $12M | $58,363 | 25 yrs |
| Current | Current mix | $17,184,559 ($7.1M in today's dollars) | $12M | $57,282 | 25 yrs |
| 50/50 | 50/50 Split | $16,766,542 ($6.9M in today's dollars) | $11M | $55,888 | 25 yrs |
| Roth 70% | Tilt Roth (70%) | $16,371,811 ($6.7M in today's dollars) | $11M | $54,573 | 25 yrs |
| All Roth | 100% Roth | $16,023,271 ($6.6M in today's dollars) | $10M | $53,411 | 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 married household earning $500k?
Lean Traditional, your 30% rate drops to ~9% in retirement
Rate drops 21% in retirement
30% → 9%, 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.