For 2009, the yearly maximum 401K contribution is $16,500. The federal government will announce in October the new maximum for 2010. These change with inflation. Investing into a 401K is a great way to save for retirement. Check out http://www.savingtoinvest.com/2009/07/taking-advantage-of-new-401k.html for the limits. Also, check out http://www.401k-site.com/ for basic information on 401K plans.