dmertz
Level 15

Get your taxes done using TurboTax

If the cause of the excess Roth 401(k) contribution was an excess employer contribution rather than the distribution being required because of the plan failing ADP (Actual Deferral Percentage) or ACP (Actual Contribution Percentage) testing, the distribution is subject to double taxation when the corrective distribution is made after April 1 of the year following the year for which the excess contribution was made.