Roth vs Traditional 401(k) on $75k income? (married)
Omar & Nina, 35 and 34, in Columbus, OH
exampleMarried, no kids yet · $75k/yr household income
They're maxing their 401(k) in Columbus and unsure whether Roth or traditional is quietly costing them.
Most married couples earning $75k assume Roth is the smart play because taxes are 'going up.' Omar & Nina's actual numbers say the opposite, and the gap isn't small.
The setup
Age
35
Household income
$75,000/yr
Household
Married, dual income
Liquid savings
$33,000
Retirement savings
$99,000
Investing return
7%/yr
Lean Traditional, your 16% rate drops to ~8% in retirement
16% → 8%
Rate drops 8% in retirement
Rate Now
16%
Rate Retired
8%
Best Strategy
All Trad
NW Diff
+$257k
At $75k combined, Omar & Nina sit in the 12% federal bracket today, but their effective marginal rate on 401(k) dollars is 16% once you factor in FICA and state tax. The engine projects their retirement rate drops to roughly 8%, meaning every dollar they shelter in a Traditional 401(k) now gets taxed at half the rate it would later. That spread, compounded over 30 years, is worth $257k in net worth.
Your current effective rate of ~16% (engine-computed) drops to ~8% in retirement. Traditional saves taxes now when your rate is highest. The All Trad strategy produces +$257k more at retirement.
| Scenario | Strategy | Retire NW | Lifetime Taxes | Retire SWR/mo | Coverage |
|---|---|---|---|---|---|
| All Trad | 100% Traditional | $4,096,035 ($1.7M in today's dollars) | $2.0M | $13,653 | 25 yrs |
| Current | Current mix | $3,839,319 ($1.6M in today's dollars) | $1.4M | $12,798 | 25 yrs |
| 50/50 | 50/50 Split | $3,942,217 ($1.6M in today's dollars) | $1.6M | $13,141 | 25 yrs |
| Roth 70% | Tilt Roth (70%) | $3,835,474 ($1.6M in today's dollars) | $1.4M | $12,785 | 25 yrs |
| All Roth | 100% Roth | $3,771,695 ($1.6M in today's dollars) | $1.4M | $12,572 | 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 own bracket spread could be wider or narrower, so model your exact numbers before defaulting to Roth.
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Get my verdict →Frequently asked
Roth or traditional 401(k) for a married household earning $75k?
Lean Traditional, your 16% rate drops to ~8% in retirement
Rate drops 8% in retirement
16% → 8%, 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.