A few years ago, new regulations mandated that 401(k) retirement plan administrators change quarterly statements to include more information about expenses about each fund in which the employee is invested. This was a good move.

I have mixed feelings about 401(k) plans. Todays world of employment is different than that from a generation ago. For those in the middle class, having a career meant, for many, sticking with the same company for a lifetime. Even after retirement, that company would take care of its employees with pensions and health benefits. With a growing middle class and some difficult periods of economic uncertainty, companies were unable to meet their pension obligations.

Wall Street stepped in. The financial industry pushed the idea of personal responsibility for retirement its difficult to argue against that concept. While the industry introduced products to help individuals invest for their retirement, the government enacted legislation that created tax incentives for those who were able to put aside some of their income for later.

Today, many companies automatically enroll new employees in 401(k) plans. This can be described as an advantage, encouraging younger employees to create a more secure retirement without much effort. The first steps deciding how much to set aside for retirement and choosing the investments are often the hardest, and they stop many people from enrolling in retirement savings plans as early as they should. Sometimes the stopping point is just the idea that someone particularly young employees arent earning enough to set aside anything for retirement. Automatic enrollment solves these problems and moves employees forward with their retirement savings quicker than any other options.

The same automatic enrollment approach to 401(k) is a great benefit to investment companies particularly, the managers of mutual funds, the companies they work for, and the companies that administer plans (third parties standing between investment companies and employers offering the 401(k) plans). The default enrollment often includes an investment allocation that includes funds that are more expensive than necessary.

Index mutual funds outperform actively managed mutual funds over long periods of time. Managers who attempt to beat the market just cant. Index mutual funds, for the most part, are also much less expensive to manage than actively managed funds. Index funds change their underlying investments less often than other funds, and those other funds quickly rack up transaction fees. Add that to compensation for the mutual fund managers which they receive whether their funds perform well or not and the total cost of these funds doesnt justify their performance or lack thereof.

CNN Money recently referred to a recent study that showed that some employers cost their employees $100,000 more than others for their average employees retirement.

For example, lets say Employee A works for FedEx, while Employee B works for Best Buy. The employees are the same age (25), have the same salary ($55,000), same annual wage growth (3%) and put the same chunk of their salary in their employers 401(k) plan each year (10%).

After 40 years, Employee A would have a final account balance of nearly $830,000 Employee B, meanwhile, would start retirement at age 65 with a nest egg of roughly $743,000 almost $100,000 less.

You can beat these averages by getting more involved in your retirement allocation. Choose the lowest cost index fund available. And if there isnt one, raise the issue with your human resources department.

A few years into my first major job out of college, working for a non-profit organization, the company finally began offering enrollment in a 403(b) plan the non-profit version of the 401(k). You would expect this type of fund to have better low-cost investment options than the average 401(k), but that wasnt the case. A small organization like the one I worked for didnt have many options for working with those third-party retirement plan administrators, and didnt have the standing to negotiate lower fees or better deals for employees.

Although I wasnt as experienced with personal finance as I am now, I still saw the plan as a raw deal for the employees.

Sometimes even the best investment option in a retirement plan isnt very good. But if youre still living with whatever the company decided you should be invested in, or if you followed your companys automatic guidance based on your risk profile, as I did when working in the financial industry, chances are youll either be retiring with less money in your nest egg or youll be waiting longer to retire.

The other option includes evaluating your investment options, choosing low-cost index mutual funds, and doing more to take control of your retirement investments than just allowing your employer to automatically enroll you in something that benefits the financial industry more than it benefits yourself.

As Ive seen in my own 401(k) plans, it can be hard to determine the true cost of your investments. My former company offered its employees a small-cap index fund, which seemed to be a good choice for balancing retirement funds between a variety of company sizes. Of course, what I should have done would be sticking to the low cost index fund that matches the S&P 500 or a similar index without concerning myself with company sizes, but I was strongly influenced by the companys own model portfolios used in its risk models.

I liked the idea of balancing my investments with a small-cap fund. What I didnt realize is that the account was actually an annuity or a mutual fund that had some annuity features. The expense ratio, the typical measurement of a funds management expenses, was listed as 0%, and I thought that was a great deal.

I should have known an expense ratio of 0% was too good to be true; there were expenses built into this fund that were not disclosed in the expense ratio.

Over time, Ive moved all of my retirement funds into low-cost index mutual funds. While the investment choice is no guarantee that Ill have the biggest nest egg possible when I reach the age at which Ill begin withdrawing these funds, it puts me in a better position to have a higher investment balance than I would had I remained in high-cost investments.

Keep your retirement expenses low:

• Check your quarterly 401(k) statements.
• Read your investment prospectuses occasionally, and understand how the fees are communicated.
• Dont blindly accept the default investment allocation.
• Select low-cost index mutual funds over other options.

Published or updated March 28, 2013. If you enjoyed this article, subscribe to the RSS feed or receive daily emails. Follow @ConsumerismComm on Twitter and visit our Facebook page for more updates.

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