How to Maximize Your 401(k)

Your 401(k) is probably your single biggest retirement savings tool. Here's how to make sure you're actually using it well.

You've been contributing to your 401(k) for years. You picked a percentage when you started the job, maybe bumped it once or twice, and haven't really thought about it since.

That's more or less how most people handle their 401(k). For most people, it means they're leaving something on the table, sometimes a little and sometimes a lot.

The 401(k) is the most powerful retirement savings tool most people have access to. It offers higher contribution limits than an IRA, potential employer matching, and a tax advantage that compounds over decades. Those advantages only fully materialize if you're using the account intentionally, not just on autopilot.

Here's how to think about it clearly.

What Makes a 401(k) Different From Other Retirement Accounts

A 401(k) is an employer-sponsored retirement plan, meaning it's offered through your workplace rather than something you open independently. That distinction matters for a few reasons.

First, it comes with a higher contribution limit than a Traditional IRA. In 2026, you can contribute up to $24,500 to a 401(k), versus $7,500 to an IRA. If you're 50 or older, catch-up contributions bring those numbers to $32,500 and $8,600 respectively.

Second, many employers match a portion of your contributions. That matching money is part of your compensation package. Unlike your salary, it only shows up in your account if you contribute enough to trigger it.

Third, your investment options are limited to whatever menu your employer's plan offers. That's a meaningful constraint, and one of the reasons having an intentional strategy inside your 401(k) matters more than people realize.

Capture the Full Employer Match First

Before anything else, contribute enough to capture your full employer match. If your employer matches 50% of contributions up to 6% of your salary, you need to contribute at least 6% to get all of it.

An employer match is an immediate 50% to 100% return on that portion of your contribution, depending on the match structure. There is no other investment that offers a guaranteed return like that. Contributing anything less than the full match threshold is one of the most straightforward financial mistakes you can make. Contributing anything less is just leaving free money on the table.

If you're not sure what your employer match is, log in to your plan or ask HR today. Then make sure your contribution rate covers it.

Decide Between Traditional (Pre-Tax) and Roth (Post-Tax)

Most 401(k) plans now offer both a traditional pre-tax option and a Roth post-tax option. The contribution limit is the same for both options. The difference is when you pay taxes on the income or the gains.

With a traditional 401(k), contributions reduce your taxable income today. You pay ordinary income tax when you withdraw funds from the 401(k) in retirement.

With a Roth 401(k), contributions are made after tax. You loose the reduction in Adjusted Gross Income (AGI) today but growth and qualified withdrawals in retirement are tax-free.

The right choice depends on your tax situation now versus what you expect in retirement. If you're in a high bracket now and expect lower income in retirement, the traditional 401(k) usually is the right choice. If you expect your income to remain high, or you want more tax flexibility later, a Roth may be more favorable in your situation. Many people benefit from contributing to both.

For a deeper look at this decision, see our post on Roth IRA vs. Traditional IRA. The same logic for IRAs applies to the 401(k) choices as well.

Know the Full Contribution Limits

The 2026 employee contribution limit is $24,500, or $32,500 if you're 50 or older with the catch-up provision. For savers aged 60 to 63, the catch-up is $11,250 instead of $7,500.

There's also a higher ceiling worth knowing. The total 401(k) contribution limit (which includes both your contributions and any employer match) is $72,000 in 2026. For most people, employer matching won't push you anywhere near that ceiling. But if you have access to after-tax contributions, sometimes called a mega backdoor Roth, this limit becomes relevant (another blog post on this topic is coming).

A few other things to know:

• The $24,500 limit is per person, not per household. If both you and your spouse have 401(k)s, you each have the full limit.

• The limit applies across all 401(k) accounts if you have more than one employer in a year. You can't double-dip.

• The IRS adjusts these limits annually for inflation, so it's worth checking each year.

Try to Increase Your Contribution Rate Annually

The most underused lever in 401(k) management is the contribution rate increase. Most people set a percentage and forget it. Meanwhile, their salary grows and their savings rate stays flat in real terms.

A simple habit: every time you get a raise, increase your 401(k) contribution by at least half the raise amount. If your take-home pay goes up by 4%, put 2% toward your contribution rate. Your lifestyle still improves, and your retirement savings accelerate.

Some plans have an auto-escalation feature that does this automatically. If yours does, try turning it on.

Have a Plan for When You Leave Your Employer

When you change jobs, your 401(k) doesn't disappear, but it requires action. You have four options; leave it with your former employer's plan, roll it into your new employer's plan, roll it into an IRA, or cash it out.

Cashing out is almost always the wrong move. It triggers income taxes on the full balance, plus a 10% early withdrawal penalty if you're under 59 1/2. On a sizable balance, this can cost tens of thousands of dollars and permanently removes those assets from compounding growth.

Rolling into an IRA or your new employer's plan preserves every dollar. An IRA rollover often gives you the widest investment options as you are no longer tied to the restrictive plan investment options. Rolling into you new employer’s plan can help with keeping your assets consolidated and easier to keep track of.

If you have multiple old 401(k)s sitting at former employers, consolidating them is worth the modest administrative effort. Forgotten accounts get harder to track, and you can't manage something you're not watching.

COMMON MISTAKES

"I'll increase my contribution rate later, when things settle down." Things don't settle down. There's always a reason to wait. The cost of delaying even one year compounds in the wrong direction. Try raising your contribution slightly each year. More than likely you won’t even notice the change.

"My 401(k) is diversified because I have multiple funds." Holding five funds that all own large-cap U.S. stocks is not diversification. Look at what your funds actually own, not just their names. True diversification means meaningful exposure across asset classes: domestic stocks, international stocks, and bonds at a minimum.

"I'll figure out the Roth vs. traditional question eventually." Every contribution you make before deciding is a contribution made by default. In years where the choice meaningfully matters, that default has a real cost. The decision doesn't require certainty, just a reasonable estimate of your current versus expected future tax situation.

FAQ

Q: Should I max out my 401(k) before contributing to an IRA?

A: Generally, follow this order. First, contribute enough to your 401(k) to get the full employer match. Second, max your IRA, Roth or traditional depending on your situation. Third, if you have more to save, return to your 401(k) and contribute up to the annual limit. The employer match makes the 401(k) the first priority. IRA contributions often deserve the second slot because of the broader investment choices available.

Q: What if my 401(k) plan has bad investment options? A: This is more common than it should be. If your plan offers only high-cost funds, your best move is usually to put contributions into the lowest-cost option available, even if it's not ideal. Do your more intentional investing in an IRA, which has no fund restrictions. It's also worth raising the issue with your HR department. Plans get renegotiated, and employee feedback sometimes matters.

Q: Does it make sense to contribute to a 401(k) if I have high-interest debt?

A: At minimum, contribute enough to capture your full employer match. That return beats almost any interest rate. Beyond that, high-interest debt, such as credit cards or personal loans, typically takes priority over additional retirement contributions. Earning 7% on your 401(k) while paying 10% on your loan is the wrong way of doing things. Lower-rate debt, such as a mortgage, can be paid down more gradually alongside continued saving.

Q: Can I contribute to a 401(k) and an IRA in the same year?

A: Yes. The contribution limits are completely separate. You can max out both your 401(k) and your IRA in the same year. If your income is above the Roth IRA thresholds, a backdoor Roth may be worth exploring.

Q: What is vesting and why does it matter?

A: Vesting refers to when employer matching contributions become permanently yours. Some employers vest immediately. Others use a vesting schedule where you only keep the full match if you stay long enough. A typical cliff vesting schedule might say you keep 0% if you leave before two years, and 100% after that. Understanding your vesting schedule matters before making any job change decision.

In Closing

Your 401(k) doesn't manage itself very well. Not paying attention to it, will get you somewhere but not very far.

The good news is that the levers here are straightforward. Capture the full match. Make a deliberate Roth versus traditional call. Keep investment costs low. Raise your rate consistently. Make a plan for when you change jobs.

None of that requires a finance degree. It just requires attention and a little time once a year to make sure nothing has drifted.