How Much Can You Contribute to a 401(k) for 2019?

It's never too early to start saving for retirement, and one of the best and most tax-friendly ways to build a nest egg is by contributing to an employer-sponsored 401(k) retirement savings account.

401(k) Contribution Limits for 2019

The maximum amount workers can contribute to a 401(k) for 2019 is $19,000 if they’re younger than age 50. That’s a $500 increase from 2018. Workers age 50 and older can add an extra $6,000 per year in “catch-up” contributions, bringing their total 401(k) contributions for 2019 to $25,000. (You can squirrel away even more in 2020.) Contributions to a 401(k) are generally due by the end of the calendar year.

A traditional 401(k) is an employer-based retirement savings account that you fund through payroll deductions before taxes have been taken out. Those contributions lower your taxable income and help cut your tax bill. For example, if your monthly income is $4,500 and you contribute $1,000 of that to your 401(k), only $3,500 of your paycheck will be subject to tax. While the money is in your account, it is sheltered from taxes as it grows.

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The money can usually be invested in a variety of stock funds and bond funds. The average 401(k) plan offers 19 funds, and typically nearly half of plan assets are invested in U.S. stock funds and target-date funds, the latter of which can change their asset allocation to become more conservative over time. (See the best funds in 401(k)s for more on where to invest your retirement savings.)

Many employers also match employees’ contributions up to a certain percentage of salary. Some companies even contribute to workers’ accounts regardless of whether the employees contribute their own money. On average, companies contributed 5.1% of an employee’s pay to the employee’s 401(k) account, according to the Plan Sponsor Council of America.

How Much Should You Save for Retirement in a 401(k)?

Stuart Ritter, a certified financial planner with T. Rowe Price, recommends that workers save at least 15% of their income for retirement, including any employer match. If your employer contributes 3%, for example, then you would need to save an additional 12%.

“For people who aren’t at 15%, one of the best ways to get there is to increase the amount you are saving by 2% each year until you reach the 15% level,” Ritter says. So if you’re saving 3% now, bump that up to 5% next year, 7% the year after and so on.

The tax-deferred growth of a 401(k) can help build a sizable nest egg. For example, a 25-year-old who contributes $5,500 a year to a 401(k) and has an annual return of 6% will accrue a nest egg of $902,262 at age 65. If instead he or she is in the 22% tax bracket and saves the same amount in a taxable account, assuming the same return, the balance would amount to $643,500 after 40 years.

You generally must be at least 59 1/2 to withdraw money from your 401(k) without owing a 10% penalty. The early-withdrawal penalty doesn’t apply, though, if you are age 55 or older in the year you leave your employer.

Your withdrawals will be subject to ordinary income tax. And once you reach age 70 1/2, you’ll be obligated to take required minimum distributions. One exception: If you’re still working when you hit that age and you don’t own 5% or more of the company you’re working for, you don’t have to take an RMD from the 401(k) that you have through that job.

A Traditional 401(k)s vs. a Roth 401(k)

According to Melissa Brennan, a certified financial planner in Dallas, a 401(k) works best for someone who anticipates being in a lower income tax bracket at retirement than they’re in now. For example, someone in the 32% or 35% tax bracket may be able to retire in the 24% bracket. “In that case, it makes sense to save on a pretax basis and defer income taxes until retirement,” Brennan says.

Employers have been increasing tax diversification in their retirement plans by adding Roth 401(k)s. These accounts combine features of Roth IRAs and 401(k)s. Contributions go into a Roth 401(k) after you have paid taxes on the money. You can withdraw contributions and earnings tax- and penalty-free if you’re at least age 59 1/2 and have owned the account for five years or more. You’ll also be required to take minimum distributions from a Roth 401(k) once you turn age 70 1/2. However, you might be able to avoid RMDs if you can move the money from a Roth 401(k) into a Roth IRA, which isn't subject to required minimum distributions.

(Note: If you invest in both a 401(k) and a Roth 401(k), the total amount of money you can contribute to both accounts can’t exceed the annual limit for your age, either $19,000 or $25,000 for 2019. If you do exceed it, the IRS might hit you with a 6% excessive-contribution penalty.)

401(k) Retirement Savings Tips

Advice for maximizing your 401(k) savings:

• Max out your contributions. For each year that you’re able, aim to hit the $19,000 limit.
• Once you turn 50, add another $6,000 to that limit annually while you continue to work.
• If your employer offers to match your contributions up to a certain amount, be sure to invest at least that much in your 401(k) each month. It’s free money, after all.