Roth vs Traditional 401(k) at 30 on $150k income? (single)
Andre, 30, in Charlotte, NC
exampleSingle, no kids · $150k/yr household income
They're maxing their 401(k) in Charlotte and unsure whether Roth or traditional is quietly costing them.
30, 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
30
Household income
$150,000/yr
Household
Single earner
Liquid savings
$36,000
Retirement savings
$108,000
Investing return
7%/yr
Lean Traditional, your 24% rate drops to ~0% in retirement
24% → 0%
Rate drops 24% in retirement
Rate Now
24%
Rate Retired
0%
Best Strategy
Current
NW Diff
$0
Your current effective rate of ~24% (engine-computed) drops to ~0% 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 | $16,891,298 ($6.0M in today's dollars) | $7.9M | $56,304 | 25 yrs |
| Current | Current mix | $16,520,083 ($5.9M in today's dollars) | $7.1M | $55,067 | 25 yrs |
| 50/50 | 50/50 Split | $16,058,500 ($5.7M in today's dollars) | $6.2M | $53,528 | 25 yrs |
| Roth 70% | Tilt Roth (70%) | $15,619,021 ($5.6M in today's dollars) | $5.3M | $52,063 | 25 yrs |
| All Roth | 100% Roth | $15,198,231 ($5.4M in today's dollars) | $4.5M | $50,661 | 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 30?
Lean Traditional, your 24% rate drops to ~0% in retirement
Rate drops 24% in retirement
24% → 0%, 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.