What is a target-date fund, and should you use one?
A target-date fund is an all-in-one mix of stocks and bonds that gets more cautious as its target year nears.
New to this?
A target-date fund is a single fund that owns other funds: stocks, bonds and sometimes cash. Its name includes a year, roughly when you plan to retire. Many 401(k) plans put new workers in one by default. It matters because it picks and adjusts your whole investment mix for you, so you don't have to.
Myth
One fund can't be enough. I should add a few more to be safe.
Truth
A target-date fund is already spread across thousands of stocks and bonds. Adding a stock fund on top quietly changes the mix. Riley's 90% stock fund plus a stock fund became 94% stocks.
Worth memorizing
- 1
The year in the name is your retirement.
Pick the fund dated closest to when you plan to stop working, usually around age 65.
- 2
It shifts from stocks to bonds over time.
Early on it holds mostly stocks. As the date nears, it moves toward bonds. That schedule is called the glide path.
- 3
It works best as your only fund.
Adding other funds in the same account changes the mix it was built to manage for you.
For most people starting out, I think a low-cost target-date fund is the easiest good choice. Pick the one near your retirement year, check that the fee is low, and then don't add other funds to the same account unless you mean to.
Do this today
Log in to your 401(k) or IRA and check whether you own a target-date fund. Note its year, its expense ratio and its current stock percentage. If you also own other funds in that account, add up your total stock share.
Practice
1 of 3
What does the year in a target-date fund's name usually mean?
The target date is roughly when you plan to retire. The fund becomes more cautious as that year approaches.
2 of 3
You have $10,000 in a target-date fund that is 80% stocks, plus $5,000 in a stock fund. What share of your $15,000 is in stocks?
$10,000 × 80% = $8,000, plus $5,000 = $13,000 in stocks. $13,000 ÷ $15,000 = about 87%.
3 of 3
What is a fund's glide path?
The glide path sets how the stock and bond mix changes as the target date gets closer, and sometimes after it.
Tips
Pick by year, then check
Choose the fund dated nearest your expected retirement. Then read its current stock and bond split. If it feels too bold or too cautious, an earlier or later date is allowed.
Compare the total fee
Target-date funds hold other funds, and fees can apply at both levels. The prospectus fee table shows the total. Index-based versions usually cost less.
Know when it stops shifting
Some funds reach their most cautious mix at the target date. Others keep shifting for years after it. The fund's glide path chart shows which.
Check your default fund
If your employer enrolled you automatically, you may already own one. Log in and confirm the year and the fee fit you.
A worked example: Riley adds one fund too many
Riley, 30, has $12,000 in a target-date fund that holds 90% stocks and 10% bonds. To be safe, Riley also buys $8,000 of a US stock index fund in the same 401(k).
- Inside the target-date fund, $12,000 × 10% = $1,200 is bonds and $12,000 × 90% = $10,800 is stocks.
- Adding the stock fund makes $10,800 + $8,000 = $18,800 in stocks out of $12,000 + $8,000 = $20,000.
- $18,800 ÷ $20,000 = 94% stocks, more than the fund chose. The fund can't rebalance money it doesn't hold, so Riley moves the $8,000 into the target-date fund.
- Target-date fund$12,000
- Bonds inside it (10%)−$1,200
- Stocks inside it (90%)=$10,800
- Separate stock fund+$8,000
- Total in stocks=$18,800
- Stocks as a share of $20,00094%
Try your numbers
Common mistakes
Mixing it with other funds by accident
On a 401(k) menu it is easy to split money between a target-date fund and several other funds. It changes your mix in ways no one is watching. Hold it alone, or skip it and build your own mix.
Choosing by the year and nothing else
Two funds with the same year can differ a lot in fees and in how much stock they hold. Spend five minutes on the fee table and the glide path.
Selling when the market drops
A fund dated 30 years out is mostly stocks and will fall in a downturn. That is expected. Selling locks in the loss, and the fund is built to hold on.
Going deeper
A target-date fund is one fund that holds a full mix of stocks and bonds and slowly shifts toward bonds as the year in its name gets closer. You pick the fund dated near the year you plan to retire, and it handles the mix and the rebalancing for you.
It is a fund of funds
Most target-date funds own a handful of other funds, such as a US stock fund, an international stock fund and a bond fund. One purchase gives you all of them in a set mix.
The mix follows a glide path
The glide path is the fund's schedule for moving from mostly stocks to more bonds as the target date nears. The fund's managers make those changes and rebalance for you.
Same year does not mean same fund
Two funds with the same year can hold quite different mixes, follow different glide paths and charge different fees. Read the details of the one you are offered.
It can still lose money
A target-date fund is invested in the markets, so its value rises and falls. It does not promise any amount of retirement income at or after its date.
How a target-date fund works
Each fund in a family is named for a year, usually in 5-year steps. If you plan to retire in about 35 years, you choose the fund dated about 35 years from now. Everyone retiring around that time shares the same fund.
With decades to go, the fund holds mostly stocks, because stocks have more room to grow and you have time to ride out drops. As the date gets closer, the managers sell some stocks and buy bonds, which usually swing less. You don't have to place a single trade for any of this.
The glide path, to or through
A "to" glide path reaches its most cautious mix at the target date and then stops changing. A "through" glide path keeps shifting for years after the date, so it holds more stocks at retirement and reaches its most cautious mix later.
Neither is right for everyone. A "to" fund is calmer near retirement. A "through" fund assumes you will keep drawing on the money for 20 or 30 years and need it to keep growing. Each fund's website shows its glide path as a chart.
What target-date funds cost
Because the fund holds other funds, you may pay fees at two levels: the target-date fund's own fee and the fees of the funds inside it. The total shows in the prospectus fee table as one expense ratio.
Versions built from index funds often cost well under 0.20% a year. Versions built from actively managed funds can cost several times as much. On $20,000, 0.12% is $24 a year and 0.70% is $140. Same idea, same date, very different price.
Who a target-date fund suits
It fits people who want a sensible mix without picking funds or rebalancing. That covers most new investors, and it is often the default in workplace plans for that reason.
It fits less well if you hold large investments elsewhere, like a spouse's 401(k) full of bonds, because the fund only manages itself and can't see your other accounts. It also fits less well if your comfort with risk is very different from a typical person your age. Then a different date, or your own mix of index funds, may suit you better.
Picking a fund that fits
Start with the fund nearest your expected retirement year. Then check three things: the current stock and bond split, the total expense ratio and the glide path. If the mix looks too aggressive for you, choosing a fund with an earlier date makes it more cautious. A later date makes it bolder.
Once you choose, set your contributions to go into it automatically and leave it be. Checking once a year is enough.
Questions people ask
Are target-date funds a good idea?
For many people, yes, as long as the fee is low and it is the main fund in the account. They give a spread-out mix and rebalance automatically. They are less useful if you want to manage your own mix.
Can I use a target-date fund in an IRA?
Yes. Target-date funds come as mutual funds and ETFs that you can hold in an IRA, a brokerage account or a 401(k). In an IRA, you can choose among many fund families and compare fees.
Should I pick an earlier or later date than my retirement year?
You can. An earlier date holds more bonds and is calmer. A later date holds more stocks and swings more. People who want a bit more or less risk than average sometimes move one step either way.
Do target-date funds pay out income in retirement?
Not on their own. You sell shares or take withdrawals as you need money. The fund does not promise a set income, and its value can still fall after the target date.
Printable worksheet with answer key, free for classrooms. Lesson plan for this unit.
Sources
- Investor.gov (SEC): Target Date Funds, Investor Bulletin
- Investor.gov (SEC): Asset Allocation
- FINRA: Asset Allocation and Diversification
Updated October 4, 2026. General education, not personalized financial, tax or legal advice. Figures are examples. Check current rates and limits before you act.
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