The Pension and Welfare Benefits Administration, part of the Dept of Labor, has over sight on 410(k) plans. Their web site is www.dol.gov/dol/pwba. There you will find basic information and the regional office assigned to your area. When you submit your complaint to the PWBA back yourself up with examples: ie, you had $xx withdrawn from your paycheck in May but it was not deposited until Aug. The 15 day period that TMFPixy posted is the absolute maximum time considered appropriate by the DOL. Also, you can request and should receive a copy of the Entire Plan Document. You may have recieved a Summary Plan Description when you signed up, but this is a watered down version. I work in a Third Party Administration Office and I understand what you are going through. I do urge you to contact the PWBA - don't let the employer get away with this. Good Luck