A Roth 401(k) is an employer-sponsored retirement account where you contribute after-tax money, so qualified withdrawals in retirement can be tax-free. It’s basically a mix of a Roth IRA’s tax treatment and a 401(k)’s workplace structure.

Quick Scoop

  • You pay taxes now, not later. Contributions come from money already taxed through payroll.
  • Growth can be tax-free. If you meet the rules, withdrawals in retirement are generally tax-free.
  • It’s offered through work. You can only use it if your employer’s 401(k) plan includes a Roth option.
  • There’s usually no income limit. Unlike a Roth IRA, Roth 401(k) contributions don’t have income eligibility limits.
  • Rules matter. To get tax-free withdrawals, you generally need to be at least 59½ and have held the account for at least five years.

Roth 401(k) vs Traditional 401(k)

  • Roth 401(k): tax now, tax-free later.
  • Traditional 401(k): tax break now, taxes later on withdrawals.

Who it may fit

A Roth 401(k) can make sense if you expect to be in a higher tax bracket later or want more tax-free income in retirement. If you want an upfront tax deduction today, a traditional 401(k) may be more attractive.

If you want, I can also explain Roth 401(k) vs Roth IRA in a simple side- by-side table.