What Is a Target-Date Fund and When Should You Invest in One?

Target-date funds are designed to age with you by automatically rebalancing your portfolio from growth investments toward more conservative ones as retirement nears.
Kevin VoigtSep 4, 2020

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Target-date funds are a "set it and forget it" retirement savings option that removes two headaches for investors: deciding on a mix of assets and rebalancing those investments over time.

This type of fund — also known as a life-cycle fund or target-retirement fund — aims to continually strike the right balance between the risk necessary to build wealth and safer bets to protect a growing nest egg. The fund automatically rebalances your portfolio with the right mix of stocks, bonds and money market accounts as you age.

What are target-date funds?

Early in your working life, a target-date fund generally is set for growth by having a much larger slice of your portfolio in stocks rather than fixed-income investments like bonds, which are safer but provide smaller returns. As your retirement year approaches, the fund gradually shifts toward more bonds, money market accounts and other lower-risk investments.

These are mutual funds that purchase from other mutual funds (known in the business as a “fund of funds”) to build a diverse portfolio. While you set and forget, the fund updates your asset allocation through the years.

Your retirement year is the "target date" of most of these funds, and the funds are conveniently named to correspond with your planned retirement year. Say you are 40 years old and plan to work until you are 65, which would be in 2045. Most target date funds are named in five-year increments, so you would choose the provider with a fund named with the year nearest your planned retirement date.

Best target date funds with low costs for winter 2021

Here are some popular target-date funds designed for investors planning to retire in 2045, ranked by 5-year annual return. We selected funds open to new investors with low costs (no sales commissions, and expense ratios of 1% or less) and minimum investments of $2,500 or less.



Expense Ratio

Min. Investment

5-year annual returns


American Funds 2045 Trgt Date Retire R5





TIAA-CREF Lifecycle Index 2045 Premier





Fidelity Freedom Index 2045 Investor





T. Rowe Price Retirement 2045





Vanguard Target Retirement 2045 Inv




Data current as of September 3, 2020. 

Why invest in target-date funds

The chief appeal of target-date funds is their simplicity. “If you think about putting together funds as you would cook good a meal, asset allocation is the choice of ingredients that goes in,” says Laura Scharr-Bykowsky, principal at Ascend Financial Planning, LLC, a financial planning firm in Columbia, South Carolina. With target-date funds, “it’s an instant meal — they’ve put all the ingredients together for you.”

Convenience is a big reason many Americans already own target-date funds.

Their convenience is a big reason many Americans already own target-date funds, although many may not know it. Target-date funds are the default plan of choice for many providers of employer-backed retirement plans such as 401(k) accounts. At the end of 2014, about half of all 401(k) plan participants had invested at least some of their cash in target-date funds, according to the Investment Company Institute, and that trend was expected to rise.

Another advantage of target-date funds is that they keep investors from being their own worst enemy by being too reactive to the market's twists and turns, which often results in buying high and selling low.

“In 2008, most 401(k) holders stuck with their plan, while in the parallel world of do-it-yourself investors, emotions got the best of them and they pulled out,” says financial advisor Jonathan Broadbent, founding partner at Plan Partners in Beachwood, Ohio. Those who exited eroded their ability to benefit from the long bull market that followed the crisis, Broadbent says.

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How target-date funds work

Target-date funds may be a quick-meal approach to portfolio management, but recipes and ingredients can vary widely across your menu of offerings.

One feature of all target-date funds is their “glide path,” or how the funds descend from a high ratio of riskier equity funds toward safer investments like bonds, and then land, freezing your asset allocation at its most conservative mix to protect your nest egg.

For example, a fund may begin with a heavy mix of domestic and global equity funds making up 90% of the total investment. But by retirement, equity funds make up only 30% of the total investment, while fixed-income investments such as bonds and short-term funds make up the rest. Providers will offer a more sophisticated range of strategies and mixes in gliding toward your final asset allocation.

An important question to ask when choosing among target-date funds: Is this a “to” fund, in which the glide path freezes your asset allocation the year you plan to retire, or a “through” fund that continues the glide path for 10 years or more past retirement before freezing your asset allocation? The philosophy of “through” funds is that life (hopefully) doesn’t stop at retirement. You still may have 20 years or more of living expenses, and the glide path toward safer investments should reflect that.

Different “through” target-date funds may extend the glide path 10, 15 or 20 years past retirement, so choose one that’s right for your retirement goals.

How to invest in target-date funds

There are three ways to invest in a target-date fund. As mentioned above, target-date funds are a common preset choice for a 401(k). If you have a 401(k) and never changed what's in it, there’s a good chance you already have a target-date fund.

You also can open a brokerage account with a fund manager or online broker to shop for target-date funds. Or you can purchase one directly from a fund provider like Vanguard, Fidelity or T. Rowe Price, but there your choices may be more limited.

The fund may require a minimum initial investment that can range from $500 to $3,000 or more. But some funds will waive the investment minimum if you make monthly deposits to your account.

Other important things to consider:

How much does it cost? Beyond the initial deposit, also consider ongoing fees you’ll pay. The cost of a mutual fund is known as its expense ratio, an annual fee expressed as a percentage of your investment — or, as the name suggests, the ratio of your investment that goes toward the fund’s expenses. The higher the fees, the more costs can erode total returns.

The average target-date fund had an expense ratio of 0.51% in 2016, according to the Investment Company Institute. But these fees can range from as low as 0.1% to more than 1.5%, so there’s room to shop around. The difference in price often revolves around whether the fund leans on cheaper passive investing strategies or more costly actively managed accounts.

Know what’s inside. Besides comparing expenses, also compare funds' investing philosophies. Understand that two identically named 2050 funds could have very different strategies for dialing your investments down from a heavier mix of equities toward bonds as you age. The asset-allocation strategy may be too conservative — or not conservative enough — depending on your appetite for risk. (This is also a good reason to crack open your 401(k) and see if there are other target-date funds on offer that are a better fit than the default choice.)

» Active vs. passive investing: What’s the difference?

Better not to completely “forget.” While the set-and-forget nature of target-date funds is a key feature, experts advise looking at your fund's performance once a year to ensure it still works for you. Also, look at other investments you hold. How do those assets and your target-date fund fit together? If you don’t know, you run the risk of double-dipping on asset classes, even buying the same fund twice, experts warn. An annual checkup of your total portfolio could spot such problems.

Remember, the growing popularity of target-date funds doesn’t mean they’re foolproof: All investments carry risks, and target-date funds are no exception. But for many investors, the one-stop convenience makes target-date funds the right choice.

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