What a target-date fund does

A target-date fund is a single investment that automatically shifts what it holds based on when you plan to retire. You pick the fund with a year closest to your expected retirement — say 2050 or 2055 — and the fund manager gradually moves your money from stocks (which grow faster but swing more in value) toward bonds and cash (which are steadier but grow slower). You do not have to rebalance it yourself or move money around as you age.

The fund's name tells you the target year. A 2050 fund assumes you will retire around 2050. As that year approaches, the fund automatically becomes more conservative. After the target year passes, the fund either stops changing or shifts into a very stable "retirement" version, depending on the fund company.

Target-date funds exist because most people do not want to think about investment strategy every year. You set it once and the fund does the work. That simplicity is the main appeal — not superior returns, but less ongoing decisions.

Key Takeaways

  • Target-date funds automatically shift from stocks to bonds as you near retirement, so you do not have to rebalance manually.
  • The fund's name shows the target year — a 2050 fund is for someone retiring around 2050, not someone retiring in 2050 with money to invest.
  • Different fund companies use different glide paths (the schedule of shifts), so two 2050 funds can look quite different by the time you retire.
  • Target-date funds charge fees that vary widely; lower-cost versions exist at major brokers, but actively managed versions cost more.
  • A target-date fund works best if you will not touch the money until retirement and do not need to customize your risk level.

How the automatic shift from stocks to bonds works

When you first invest in a target-date fund far from your target year, the fund holds mostly stocks — often 80 to 90 percent. Stocks have historically returned more over long periods, but they also drop sharply in bad years. The fund assumes you have time to wait out those drops.

As years pass and your target retirement date gets closer, the fund gradually sells stocks and buys bonds and cash. This shift is called the glide path. By the time you reach your target year, the fund might hold only 30 to 50 percent stocks and 50 to 70 percent bonds and cash. The exact mix depends on which fund company runs it — Vanguard, Fidelity, and Schwab each use different glide paths.

After your target year arrives, the fund either keeps shifting to become even more conservative, or it stops and holds a fixed mix. Some funds move into a separate "retirement" version that stays very stable. Others stay in the target-date fund and keep adjusting. Read the fund's prospectus (the official document describing how it works) to know which approach yours uses.

Choosing the right target year for your situation

Pick the fund with a target year closest to when you plan to stop working, not when you plan to start withdrawing money. If you think you will retire at 67, choose a 2045 or 2050 fund depending on your current age. If you are 45 now and plan to retire at 67, a 2040 fund is roughly right.

The fund assumes you will need the money starting around the target year and will draw it down over the next 20 to 30 years. If you plan to retire much earlier or much later than the fund's target, you may want a different year. Some people also choose a fund one or two years earlier than their target if they are comfortable with more risk, or one or two years later if they want to be more conservative.

If you are unsure of your retirement date, pick the fund closest to your best guess. You can always switch to a different target-date fund later if your plans change. Switching does not trigger a tax bill if you move between funds within the same retirement account (like a 401(k) or IRA).

Fees and costs vary significantly between providers

Target-date funds charge an annual fee, called an expense ratio, that is deducted from your returns automatically. The fee varies widely. A low-cost index-based target-date fund at Vanguard or Fidelity might charge 0.08 to 0.15 percent per year. An actively managed target-date fund (where a manager makes decisions rather than following an index) can charge 0.50 to 1.00 percent or more.

On a $100,000 investment, the difference between 0.10 percent and 0.75 percent is $650 per year. Over 20 years, that difference compounds significantly. If you have access to low-cost target-date funds through your employer's 401(k) plan, use those. If you are investing in an IRA or taxable account, compare the expense ratios of available funds before choosing.

Some target-date funds also hold other funds inside them, which means you pay fees on top of fees. Check whether the fund you are considering is a "fund of funds" and whether those inner fees are reasonable.

When a target-date fund makes sense for you

A target-date fund works well if you plan to invest regularly (such as through payroll deductions into a 401(k)), will not touch the money until retirement, and do not want to spend time managing your investments. It also works if you are not sure how much risk you should take — the fund's glide path makes that decision for you based on time until retirement.

A target-date fund is less suitable if you have a very short time horizon (less than five years until you need the money), because the fund may still hold too many stocks for your comfort. It is also not ideal if you have other investments outside the fund and want to coordinate your overall strategy, or if you have strong opinions about how much stock versus bonds you should own.

If you are already retired and drawing money from your accounts, a target-date fund may not be the right choice because the fund assumes you are still accumulating money until the target year. A simpler portfolio of bonds and dividend-paying stocks, or a fund designed specifically for retirees, may serve you better.

Target-date funds versus building your own portfolio

You can achieve similar results by buying a simple mix of a stock index fund and a bond index fund, then rebalancing once or twice a year. This approach gives you more control and often costs less in fees. A typical starter portfolio might be 80 percent stock index fund and 20 percent bond index fund, shifting gradually toward 50/50 or 40/60 as you near retirement.

The trade-off is that you have to remember to rebalance and adjust the mix yourself. Most people do not do this consistently. A target-date fund removes that burden. If you know you will not rebalance on your own, the automatic approach of a target-date fund is worth the slightly higher cost.

Some people also use target-date funds as the core of their retirement account and add other investments around them. For example, you might hold a target-date fund for your core retirement savings and a separate stock fund for money you might need sooner. This hybrid approach gives you both simplicity and flexibility.

What happens to your money after you retire

Reaching your target year does not mean you must stop investing or start withdrawing immediately. Many people keep their target-date fund invested for years after the target date passes. The fund continues to hold a stable mix of stocks and bonds, providing some growth while protecting against sharp drops.

When you do start withdrawing money, you can take it from the target-date fund directly. The fund does not force you to sell at any particular time. Some people withdraw a fixed percentage each year (often called the 4 percent rule), while others withdraw based on what they need that year. The fund's stable mix is designed to support either approach.

If you live much longer than expected and run low on money, you may want to shift back toward more stocks to extend your savings. A target-date fund does not prevent this — you can switch to a different fund or adjust your strategy. But the fund itself is not designed to grow significantly after retirement, so do not expect it to recover large losses on its own.

Frequently Asked Questions

Can I lose money in a target-date fund?

Yes. Even funds close to their target year hold some stocks, which can drop in value. During a severe market downturn, a target-date fund can lose 10 to 20 percent or more. The fund is designed to recover over time, but there is no may provide. If you need the money within five years, a target-date fund may be too risky.

What if I change jobs and my new employer's 401(k) has different target-date funds?

You can roll your old 401(k) into your new employer's plan or into an IRA, then invest in whatever target-date fund you prefer. You can also keep the old 401(k) where it is. Switching funds does not create a tax bill if you move the money directly between retirement accounts.

Should I pick a target-date fund one year earlier or later than my actual retirement date?

Picking an earlier year makes the fund more conservative sooner, which reduces risk but also reduces growth. Picking a later year keeps it more aggressive longer, which can help if you live well into retirement. Most people do best with the year closest to their actual retirement date, then adjusting if their plans change.

Do I need to rebalance a target-date fund myself?

No. The fund manager rebalances automatically as part of managing the glide path. You do not need to do anything. If you hold other investments outside the target-date fund, you may want to rebalance your overall portfolio, but the fund itself handles its own rebalancing.

What is the difference between a target-date fund and a target-risk fund?

A target-date fund shifts its mix based on time until retirement. A target-risk fund (also called a balanced fund) holds a fixed mix based on your risk tolerance — conservative, moderate, or aggressive — and does not change over time. Choose target-date if you want automatic adjustments; choose target-risk if you prefer a stable mix.