Roth & After-Tax 401(k) Contributions
Unlike regular pre-tax contributions, Roth contributions are taken out of your paycheck after taxes are determined. The big advantage? You pay no taxes when you take your money out in retirement - not even on your investment earnings.

Are Roth contributions right for you? 
So, how do you know if a Roth contribution is right for you? Ask yourself these questions:

  • Will my combined marginal tax rate be higher than or equal to what it is now when I take withdrawals?  
  • Do I have a significant amount of years before I plan on retiring?

If you answered YES to any of these questions, making a Roth contribution may be right for you.

Pre-Tax vs. Roth vs. After-Tax – At a Glance

Pre-tax Contributions Roth Contributions After-Tax (non-Roth) Contributions
When are contributions taxed? At time of withdrawal At time of contribution At time of contribution
How do earnings grow? Tax-deferred Tax-free Tax-deferred
When are withdrawals taxed? Both contributions and earnings are taxed as ordinary income in retirement Qualified withdrawals of both contributions and earnings are tax-free Only earnings are taxed as ordinary income upon withdrawal;* contributions are tax-free
Early Withdrawal Penalties 10% penalty on distributions made before age 59 ½ 10% penalty on distributions of investment earnings made before age 59 ½ (or if the account has been held for less than 5 years) 10% penalty on distributions made before age 59 ½
Contribution Limits Subject to annual IRS limits (e.g., $23,500 combined pre-tax & Roth in 2025) Subject to the same annual IRS limits as pre-tax contributions Allowed after maxing out pre-tax/Roth limits, up to a much higher overall plan cap (e.g., $70,000 total in 2025)
Eligible for Company Match? Yes, eligible for company match Yes, eligible for company match No, not eligible for company match

*See Roth In Plan Conversion for how to convert After-Tax contributions to Roth, so that earnings become tax-free.

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