You Just Got Your First 401k - Now What

Your employer just enrolled you in a 401k and you have no idea what to do next. Here is exactly where to start.

First Things First - Contribute Enough to Get the Match

If your employer offers a matching contribution, that is free money. A common match structure is 50 cents on every dollar you contribute, up to 6 percent of your salary. If you contribute less than 6 percent, you are leaving part of your compensation on the table. Before you do anything else, find out what your employer match is and make sure you are contributing at least enough to capture all of it.

Log into your HR portal or benefits platform and confirm two things: your current contribution percentage, and the vesting schedule for employer contributions. Vesting determines when the employer match actually becomes yours. Some plans vest immediately. Others require two to five years of service. If you leave before you are fully vested, you forfeit a portion of those employer contributions.

Choose Your Investments - This Is Simpler Than It Looks

Most 401k plans offer a limited menu of funds. You do not need to analyze all of them. Start by finding your plan is target date fund closest to your expected retirement year. If you plan to retire around 2060, look for a fund labeled something like "Target Date 2060." These funds automatically adjust their stock and bond mix as you get closer to retirement. They are not perfect, but they are a reasonable default for someone just getting started.

If you want more control, a simple three-fund approach works well: a domestic stock index fund, an international stock index fund, and a bond index fund. At early career stages, most people keep bond exposure low - somewhere in the 10 to 20 percent range - and hold the rest in equities. The key is to pick something reasonable and not leave your contributions sitting in a money market or stable value fund by default, which is what some plans do automatically.

Check your default investment. Many plans auto-enroll you into a stable value or money market fund. If that is where your money is sitting, it is not growing the way it should be for a long time horizon.

Traditional 401k vs Roth 401k - Which One Do You Choose

If your employer offers both a traditional and a Roth 401k option, you will need to decide how to contribute. The core difference is when you pay taxes. Traditional contributions reduce your taxable income now and you pay taxes on withdrawals in retirement. Roth contributions are made with after-tax dollars and grow tax-free - no taxes on qualified withdrawals later.

As a general rule, if you are early in your career and expect your income to grow significantly over time, the Roth 401k tends to be more valuable. You are paying taxes at a lower rate now and locking in tax-free growth for decades. If you are in a high-income year and expect to be in a lower bracket in retirement, traditional contributions may make more sense. When in doubt, splitting contributions between both is a reasonable approach that gives you tax diversification.

What to Do After You Set It Up

Once you have confirmed your contribution rate, chosen your investments, and selected traditional or Roth, your job is mostly done. Set a reminder to increase your contribution rate by one to two percent each year, or every time you receive a raise. Aim to eventually reach the IRS annual limit - in 2025 that is $23,500 for those under 50.

Review your investment allocation once a year. You do not need to check it monthly. Resist the urge to move money around based on market news. The biggest mistake new investors make is not poor fund selection - it is panic-driven decisions during market downturns. A 401k is a long-term vehicle. Treat it like one.

If you change jobs, roll your 401k into your new employer plan or into a traditional IRA. Do not cash it out. Early withdrawals trigger income taxes plus a 10 percent penalty, and you lose years of compounding that you cannot get back.