Roth vs Traditional 401(k) at 45 on $150k income? (single)
Ben, 45, 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.
45, 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
45
Household income
$150,000/yr
Household
Single earner
Liquid savings
$126,000
Retirement savings
$378,000
Investing return
7%/yr
Lean Traditional, your 24% rate drops to ~5% in retirement
24% → 5%
Rate drops 19% in retirement
Rate Now
24%
Rate Retired
5%
Best Strategy
Current
NW Diff
$0
Your current effective rate of ~24% (engine-computed) drops to ~5% 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 | $6,011,393 ($3.3M in today's dollars) | $3.1M | $20,038 | 25 yrs |
| Current | Current mix | $5,917,013 ($3.3M in today's dollars) | $2.8M | $19,723 | 25 yrs |
| 50/50 | 50/50 Split | $5,795,648 ($3.2M in today's dollars) | $2.6M | $19,319 | 25 yrs |
| Roth 70% | Tilt Roth (70%) | $5,676,285 ($3.1M in today's dollars) | $2.3M | $18,921 | 25 yrs |
| All Roth | 100% Roth | $5,551,886 ($3.1M in today's dollars) | $2.1M | $18,506 | 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 at 45?
Lean Traditional, your 24% rate drops to ~5% in retirement
Rate drops 19% in retirement
24% → 5%, 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.