401k accounts good and bad. They’re mostly good because they provide an avenue for people to save and invest money for their future, but there are some things to watch out for.

Good stuff:

• The main benefit of a 401k is that it allows you to invest qualified money. You could just invest money on your own, but investing in your 401k accounts means that you get some significant tax advantages (no capital gains on the growth of your investments and an income tax break). The same advantages apply to IRA accounts, but 401ks include two other significant advantages.
• Many employers offer a matching contribution. For example, if you contribute a certain small percentage of your income (say 5%), the employer may kick in an additional small percentage into your 401k account (say 4%). That’s free money, and you should definitely take it.
• 401k contributions are capped at $19,000 per year by the employee, employer contributions can exceed that. IRA contributions are capped at $6,000 per year. Not all of us are maxing out our qualified retirement accounts, but the larger cap offered by 401k accounts is certainly an advantage.

Bad stuff:

• 401k accounts offer a limited number of investing options, and they’re almost never great. 401k Plan sponsors (employers) are typically concerned with one thing when choosing a plan: cost. If the plan seems expensive it will be harder to explain to the board, regardless of the value or benefits of the portfolio and the advisor.
• Your money is locked up for as long as you work at the company. You’re stuck with the options available and you can’t move the money elsewhere unless you leave or retire.
• Investors have little to no help deciding which funds or options to use within the 401k so they end up in default options, which are usually target dated funds. You may have seen these funds that end with a future year, like 2045, which you’d be in if you were expected to retire sometime around 2045. A target dated fund is not the worst investment you could be in (which isn’t saying much) but it’s far from ideal. A target dated fund will load you up in U.S. large growth companies (essentially the S&P 500), sprinkle in some international large growth companies, and decide what percentage of your money should be in bonds based on the target year. Unfortunately, in the history of the market, large growth company asset classes are among the lowest-performing of any asset classes over time. A target dated fund is usually made up of index funds (along with their inherent problems) so at least it’s not active, but it will sacrifice large amounts of return over time because of its poor diversification.

Don’t be afraid to use your 401k account, especially if your employer offers a matching contribution (again, free money). But if you’ve obtained the maximum matching contribution, think about investing additional money into a better portfolio through an IRA. Unfortunately, your 401k is probably loaded up in the wrong asset class.