A target-date fund is a single mutual fund that contains a diversified mix of stocks and bonds, automatically rebalances itself, and gradually shifts to a more conservative allocation as you approach retirement. You pick one fund. It does everything else.
For most people saving for retirement through a 401(k), a target-date fund is the right answer — not because it’s perfect, but because it’s good enough and requires no ongoing decisions.
How target-date funds work
You pick the fund whose year is closest to when you plan to retire. If you’re 32 in 2026 and plan to retire at 65, you pick a Target Date 2059 or 2060 fund.
Inside that fund is a diversified portfolio — typically a mix of US stocks, international stocks, and bonds. Early in your career, the allocation is stock-heavy (80–90% stocks). As the target date approaches, the fund automatically shifts toward more bonds and cash — this shift is called the “glide path.”
At the target date (retirement), the fund typically holds something like 40–50% stocks and 50–60% bonds. After the target date, many funds continue shifting more conservative, holding the position for 20+ years of retirement drawdown.
You never need to:
- Choose individual funds
- Rebalance when your allocation drifts
- Shift to more conservative investments as you age
The fund does all of this automatically.
The glide path: what actually changes over time
Vanguard’s Target Retirement 2060 Fund, for example, currently holds approximately:
- 54% US stocks
- 36% international stocks
- 7% US bonds
- 3% international bonds
By 2060, it will hold roughly:
- 30% stocks (split US/international)
- 70% bonds
By 2080 (15 years into retirement), it will hold approximately:
- 30% stocks
- 70% bonds (this is the “landing” allocation, where it stabilizes)
Different fund families have different glide paths. Vanguard is somewhat more aggressive than Fidelity and T. Rowe Price at the target date. None is definitively right — it depends on whether you expect to rely heavily on the fund early in retirement or plan to leave it invested for decades.
The expense ratio matters enormously
Target-date funds come in two flavors: index-based and actively managed.
Index-based target-date funds (Vanguard, Fidelity, Schwab) hold index funds inside. Expense ratios: 0.08–0.15% annually. On a $100,000 portfolio, that’s $80–$150/year.
Actively managed target-date funds (common in older 401(k) plans) hold actively managed funds inside. Expense ratios: 0.50–1.50% annually. On a $100,000 portfolio, that’s $500–$1,500/year.
The difference compounded over 30 years is enormous. A 1% higher expense ratio costs you roughly 20–25% of your ending balance — hundreds of thousands of dollars on a typical retirement portfolio.
Check the expense ratio of your plan’s target-date funds. If they’re above 0.25%, look at whether your plan offers lower-cost alternatives (individual index funds you can combine yourself).
The best target-date fund families
Vanguard Target Retirement funds: Expense ratio ~0.08%. Industry benchmark. If your plan offers these, use them.
Fidelity Freedom Index funds: Expense ratio ~0.12%. Note: Fidelity offers both “Freedom” (actively managed, higher fees) and “Freedom Index” (index-based, low fees). Make sure you’re picking the Index version.
Schwab Target Date Index funds: Expense ratio ~0.08%. Excellent low-cost option.
T. Rowe Price Target Date funds: Expense ratio ~0.40–0.60%. Actively managed, one of the better active options but still significantly more expensive than index versions.
When a target-date fund might not be right for you
Your plan only offers high-fee target-date funds. If your 401(k)‘s target-date funds charge 0.8%+, you’re better off building a two-fund portfolio from the plan’s lowest-cost index funds.
You have strong preferences about asset allocation. Target-date funds assume you’ll retire around their target year and sets allocation accordingly. If you want a more aggressive allocation (100% stocks) or are retiring much earlier than typical, you’ll want to build your own.
You’re coordinating across multiple accounts. A target-date fund treats itself as your entire portfolio. If you have a brokerage account with bonds alongside a 401(k) with a target-date fund (which also holds bonds), you may be over-allocated to fixed income.
You want to tax-optimize asset location. Bonds are more tax-inefficient than stocks — ideally, bonds go in tax-advantaged accounts and stocks in taxable accounts. A target-date fund puts everything in one place, preventing this optimization.
For most people with a single 401(k) as their primary retirement savings, none of these exceptions apply. The target-date fund is the right answer.
How to pick the right year
Pick the year closest to when you turn 65, or when you realistically plan to retire. It doesn’t have to be exact — being one fund “off” has minimal practical impact.
If you want a slightly more aggressive allocation, you can pick a fund 5–10 years later than your target retirement year (e.g., a 2065 fund if you’re retiring in 2055). This keeps the stock allocation higher for longer. Conversely, picking an earlier date makes the allocation more conservative sooner.
FAQ
Can I lose money in a target-date fund?
Yes. Target-date funds hold stocks, which can decline. In 2022, a typical 2060 target-date fund lost 20–25% as both stocks and bonds fell simultaneously. This is normal for long-term investing. The decline recovers as markets recover.
Is it okay to use a target-date fund outside of a 401(k)?
Yes. Vanguard, Fidelity, and Schwab all offer target-date funds in IRAs and taxable accounts. In a taxable account, the fund’s rebalancing activity creates taxable events — this is a mild inefficiency compared to managing it yourself, but still acceptable for most people.
Should I split between multiple target-date funds?
No. The entire point is simplicity — one fund, fully diversified. Splitting between a 2055 and 2060 fund just creates a blended allocation you could achieve by picking the right year directly.
What’s the difference between a target-date fund and a balanced fund?
A balanced fund has a static allocation (e.g., always 60/40). A target-date fund changes its allocation over time via the glide path. For retirement savings, the target-date fund is usually more appropriate.