Roth vs Traditional 401(k) at 45 on $75k income? (single)
Diego, 45, in Kansas City, MO
exampleSingle, no kids · $75k/yr household income
They're maxing their 401(k) in Kansas City and unsure whether Roth or traditional is quietly costing them.
45, single, $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
45
Household income
$75,000/yr
Household
Single earner
Liquid savings
$63,000
Retirement savings
$189,000
Investing return
7%/yr
Lean Traditional, your 19% rate drops to ~17% in retirement
19% → 17%
Rate drops 2% in retirement
Rate Now
19%
Rate Retired
17%
Best Strategy
All Trad
NW Diff
+$144k
Your current effective rate of ~19% (engine-computed) drops to ~17% in retirement. Traditional saves taxes now when your rate is highest. The All Trad strategy produces +$144k more at retirement.
| Scenario | Strategy | Retire NW | Lifetime Taxes | Retire SWR/mo | Coverage |
|---|---|---|---|---|---|
| All Trad | 100% Traditional | $2,666,331 ($1.5M in today's dollars) | $1.3M | $8,888 | 25 yrs |
| Current | Current mix | $2,521,905 ($1.4M in today's dollars) | $1.0M | $8,406 | 25 yrs |
| 50/50 | 50/50 Split | $2,545,341 ($1.4M in today's dollars) | $1.1M | $8,484 | 25 yrs |
| Roth 70% | Tilt Roth (70%) | $2,461,979 ($1.4M in today's dollars) | $929k | $8,207 | 25 yrs |
| All Roth | 100% Roth | $2,401,778 ($1.3M in today's dollars) | $872k | $8,006 | 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 $75k at 45?
Lean Traditional, your 19% rate drops to ~17% in retirement
Rate drops 2% in retirement
19% → 17%, 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.