FAQ - ANSWER

How soon does my employer have to deposit my contributions deducted from my pay into my 401k account?

Answer: Government regulations require that participant contributions to a 401k be deposited to the plan on the earliest date that they can be reasonably segregated from the employer's general assets, but in no event may they be deposited later than the 15th business day of the month following the month in which the participant contributions are deducted from their pay. What this DOESN’T mean is that your employer can wait until the 15th business day of the month following the month in which your contribution was deducted just for the convenience of doing so. If they can deposit the funds in one or two days, they must do so.

See the following additional information and articles:

Crediting Participant Contributions

Timing on the Deposit of Employee Contributions

Your Contributions: The Long Day's Journey into ... Your 401k