401(k) vs Roth 401(k)

401(k) vs Roth 401(k) — Pre-Tax or Post-Tax?

Most 401(k) plans now offer both Traditional (pre-tax) and Roth (post-tax) options. Choosing wrong costs six figures over a career.

Verdict

Pre-tax for high earners expecting lower retirement income. Roth for younger workers (under 30) and anyone expecting higher future income. If unsure, split 50/50.

Side-by-side comparison

 401(k) Pre-Tax401(k) Roth
Tax nowDeductionNone
Tax at retirementOrdinary incomeTax-free
2026 limit$23,000$23,000 (combined)
Employer matchYes (pre-tax sub-account)Yes (still pre-tax)
RMDsYes at 73Yes (roll to Roth IRA to skip)
Best for24%+ bracket today12-22% bracket today

Who should pick 401(k) Pre-Tax

High earners in 32%+ bracket. Late-career workers within 10 years of retirement.

Who should pick 401(k) Roth

Workers under 35. Anyone expecting promotions / income growth. Anyone uncertain about future tax-law changes.

Related tools

Traditional vs Roth 401(k)Detailed comparison.401(k) CalculatorRun actual numbers.Federal Tax CalculatorFind your bracket.

Disclaimer. Comparison numbers depend on your tax bracket, state, and time horizon. Educational only — not personalized financial advice. See our Financial Disclaimer.

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