Roth 401k vs Roth IRA vs Traditional 401k

Roth 401kRoth IRA401k
ContributionsAfter-tax dollarsPre-tax dollarsbefore-tax dollars
Income LimitsNone$160,000 for married, $110,000 for single.None
Maximum Contribution$15,000 in 2006 or $20,000 if 50 or older.$4,000 in 2006 or $5,000 if 50 or older.$15,000 in 2006 or $20,000 if 50 or older.
Taxes on withdrawalsNone. Provided requirements are met.None. Same requirements as Roth 401k. Can also withdraw in certain cases for a first time home purchase.All withdrawals are subjected to Federal and most State income taxes.
Required WithdrawalsMust begin no later than age 70 1/2 unless still working.No requirements while owner is still alive.Same as Roth 401k.

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