Roth vs Traditional 401(k) at 30 on $75k income? (married)
Andre & Omar, 30 and 28, in Kansas City, MO
exampleMarried, no kids yet · $75k/yr household income
They're maxing their 401(k) in Kansas City and unsure whether Roth or traditional is quietly costing them.
30, married, $75k/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
30
Household income
$75,000/yr
Household
Married, dual income
Liquid savings
$18,000
Retirement savings
$54,000
Investing return
7%/yr
Lean Traditional, your 16% rate drops to ~10% in retirement
16% → 10%
Rate drops 6% in retirement
Rate Now
16%
Rate Retired
10%
Best Strategy
All Trad
NW Diff
+$451k
Your current effective rate of ~16% (engine-computed) drops to ~10% in retirement. Traditional saves taxes now when your rate is highest. The All Trad strategy produces +$451k more at retirement.
| Scenario | Strategy | Retire NW | Lifetime Taxes | Retire SWR/mo | Coverage |
|---|---|---|---|---|---|
| All Trad | 100% Traditional | $5,372,804 ($1.9M in today's dollars) | $3.0M | $17,909 | 25 yrs |
| Current | Current mix | $4,921,476 ($1.7M in today's dollars) | $1.9M | $16,405 | 25 yrs |
| 50/50 | 50/50 Split | $5,173,972 ($1.8M in today's dollars) | $2.3M | $17,247 | 25 yrs |
| Roth 70% | Tilt Roth (70%) | $5,027,144 ($1.8M in today's dollars) | $1.9M | $16,757 | 25 yrs |
| All Roth | 100% Roth | $4,927,452 ($1.8M in today's dollars) | $1.9M | $16,425 | 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 $75k at 30?
Lean Traditional, your 16% rate drops to ~10% in retirement
Rate drops 6% in retirement
16% → 10%, 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.