Deposits into a 401k account must be made in a "timely" manner. If you do not see your deposits within two weeks of the time they are taken out of your check, you can to the following:

1. Ask you company HR department why the deposits are taking so long
2. Ask your 401k provider why the deposits are taking so long

"Technically" reasonable timeframe is defined as the 15th business day of the month following the deduction from your paycheck. After working for an administrator I know this OFTEN does not happen. Some employers send them every pay period, some once a month...some rarely. There are no technical penalties, but you can file complaint if they are extremely bad. In some cases they have to make a "lost earnings" contribution, meaning the money that was not deposited could have made money if invested... This becomes a problem if loan payments are not sent in frequently, as some companies will default them quicker than others. Speak to your HR>.. let them know you know your rights.. your states' AG or Department of Labor can help if they do not listen