For a complete guide to index fund and ETF investing — including fund comparisons, expense ratios, and tax strategy — see the Index Funds and ETFs hub.
If you want the absolute simplest way to invest for retirement, a target-date fund is it. You pick one fund based on when you plan to retire — say 2055 — and that single fund holds a diversified mix of US stocks, international stocks, and bonds. It automatically shifts from aggressive (90% stocks at age 25) to conservative (50% stocks at age 65) as you approach retirement. No rebalancing, no decisions, no maintenance. Just contribute regularly and let time do the work.
The only decision that matters is which provider’s target-date funds you choose — because fees and fund construction vary significantly.
Best Target-Date Fund Families Compared
| Provider | Series Name | Expense Ratio | Underlying Funds | Glide Path (Age 25) | Glide Path (Age 65) | Index or Active |
|---|---|---|---|---|---|---|
| Vanguard | Target Retirement | 0.08% | Vanguard index funds | 90/10 | 50/50 | Index |
| Fidelity | Freedom Index | 0.12% | Fidelity index funds | 90/10 | 46/54 | Index |
| Schwab | Target Index | 0.08% | Schwab index funds | 90/10 | 40/60 | Index |
| iShares (BlackRock) | LifePath Index | 0.10% | iShares index ETFs | 99/1 | 40/60 | Index |
| T. Rowe Price | Retirement | 0.55% | T. Rowe Price active funds | 90/10 | 55/45 | Active |
| Fidelity | Freedom (active) | 0.61% | Fidelity active funds | 85/15 | 46/54 | Active |
| American Funds | Target Date Retirement | 0.39–0.66% | American Funds active | 85/15 | 45/55 | Active |
| JPMorgan | SmartRetirement | 0.56% | JPMorgan active funds | 87/13 | 42/58 | Active |
Detailed Reviews
Vanguard Target Retirement Funds — Best Overall
| Feature | Details |
|---|---|
| Expense ratio | 0.08% |
| Underlying holdings | 4 Vanguard index funds |
| US stocks | Vanguard Total Stock Market Index (VTSAX) |
| International stocks | Vanguard Total International Stock Index (VTIAX) |
| US bonds | Vanguard Total Bond Market Index (VBTLX) |
| International bonds | Vanguard Total International Bond Index (VTABX) |
| Minimum investment | $0 (for ETF versions), $1,000 (mutual fund) |
| Glide path start | 90% stocks / 10% bonds |
| Glide path at retirement | 50% stocks / 50% bonds |
| Through or to retirement | Through (continues adjusting 7 years past target date) |
Vanguard’s target-date funds are the gold standard. At 0.08% expense ratio, they cost less than a cup of coffee per year on $10,000 invested. Inside, you get four simple index funds covering the entire global stock and bond market. Vanguard’s “through” glide path continues reducing stock exposure for 7 years past the target date, reaching 30/70 stocks/bonds at age 72. This approach recognizes that retirement can last 30+ years and some growth is still needed.
Best for: Everyone. This is the default recommendation for any 401(k) or IRA.
Fidelity Freedom Index Funds — Best Runner-Up
| Feature | Details |
|---|---|
| Expense ratio | 0.12% |
| Underlying holdings | Fidelity index funds |
| Minimum investment | $0 |
| Glide path at retirement | 46% stocks / 54% bonds |
| Through or to retirement | Through (continues 10–19 years past target) |
Fidelity Freedom Index funds are the index-based version of Fidelity’s target-date lineup (don’t confuse them with the actively managed “Freedom” series at 0.61%). At 0.12%, they’re slightly more expensive than Vanguard’s 0.08% but still extremely low-cost. If your 401(k) or IRA is at Fidelity, these are an excellent choice.
Best for: Fidelity account holders who want a simple, low-cost target-date option
Schwab Target Index Funds — Best Tied with Vanguard
| Feature | Details |
|---|---|
| Expense ratio | 0.08% |
| Underlying holdings | Schwab index funds |
| Minimum investment | $1 |
| Glide path at retirement | 40% stocks / 60% bonds |
| Through or to retirement | Through |
Schwab’s target index funds match Vanguard’s 0.08% expense ratio. The main difference is the glide path: Schwab reaches a more conservative 40/60 at retirement vs. Vanguard’s 50/50. This may appeal to more conservative investors. If you bank and invest with Schwab, keeping your target-date fund there consolidates everything.
Best for: Schwab account holders, especially those who prefer a more conservative glide path
T. Rowe Price Retirement Funds — Best Active Management
| Feature | Details |
|---|---|
| Expense ratio | 0.55% |
| Underlying holdings | T. Rowe Price actively managed funds |
| Minimum investment | $1,000 |
| Glide path at retirement | 55% stocks / 45% bonds |
| Through or to retirement | Through (30 years past target) |
T. Rowe Price target-date funds use actively managed underlying funds, which is why the expense ratio (0.55%) is 7x higher than Vanguard’s. The argument for active management: T. Rowe Price’s funds have actually outperformed many index-based target-date funds over 10 and 15-year periods. However, past performance doesn’t guarantee future results, and the fee drag compounds significantly over 30+ years.
Best for: Investors who believe in active management and have T. Rowe Price in their 401(k)
Cost Comparison: How Fees Compound Over 30 Years
$500/Month Invested for 30 Years (8% Gross Return)
| Provider | Expense Ratio | Total Fees Paid | Final Balance | Lost to Fees |
|---|---|---|---|---|
| Vanguard | 0.08% | $6,700 | $738,400 | $6,700 |
| Schwab | 0.08% | $6,700 | $738,400 | $6,700 |
| Fidelity Index | 0.12% | $10,000 | $735,100 | $10,000 |
| iShares | 0.10% | $8,400 | $736,700 | $8,400 |
| American Funds | 0.50% | $40,500 | $704,600 | $40,500 |
| T. Rowe Price | 0.55% | $44,200 | $700,900 | $44,200 |
| Fidelity Active | 0.61% | $48,800 | $696,300 | $48,800 |
Vanguard vs. Fidelity Active: $42,100 difference — the price of a new car — entirely due to fees, on the same monthly investment. This is why expense ratio is the single most important factor when choosing target-date funds.
Annual Fee on Different Portfolio Sizes
| Portfolio Size | 0.08% (Vanguard) | 0.12% (Fidelity Index) | 0.55% (T. Rowe Price) | 0.61% (Fidelity Active) |
|---|---|---|---|---|
| $10,000 | $8 | $12 | $55 | $61 |
| $50,000 | $40 | $60 | $275 | $305 |
| $100,000 | $80 | $120 | $550 | $610 |
| $250,000 | $200 | $300 | $1,375 | $1,525 |
| $500,000 | $400 | $600 | $2,750 | $3,050 |
Understanding Glide Paths
A glide path shows how the stock/bond allocation changes over time:
Stock Allocation at Key Ages (Per Provider)
| Age | Vanguard | Fidelity Index | Schwab | T. Rowe Price | iShares |
|---|---|---|---|---|---|
| 25 | 90% | 90% | 90% | 90% | 99% |
| 35 | 87% | 85% | 85% | 87% | 90% |
| 45 | 78% | 73% | 72% | 80% | 77% |
| 55 | 65% | 60% | 58% | 68% | 60% |
| 65 (retirement) | 50% | 46% | 40% | 55% | 40% |
| 72 | 30% | 30% | 25% | 42% | 30% |
Key differences:
- iShares starts most aggressively at 99% stocks for young investors
- T. Rowe Price maintains the highest stock allocation through and past retirement (55% at 65)
- Schwab is the most conservative at retirement (40% stocks)
- Vanguard sits in the middle at 50/50
The “right” glide path depends on your risk tolerance and other income sources (Social Security, pensions). More stocks = more growth potential but more volatility.
Target-Date Fund vs. DIY Portfolio
Vanguard Target Retirement 2055 vs. DIY 3-Fund Portfolio
| Feature | Vanguard Target 2055 | DIY 3-Fund Portfolio |
|---|---|---|
| Expense ratio | 0.08% | 0.03% (VTI, VXUS, BND average) |
| Rebalancing | Automatic | Manual (quarterly or annually) |
| Glide path | Automatic | Manual adjustment |
| Effort required | Zero | 1–2 hours/year |
| Customization | None | Full control |
| Emotional protection | High (automated) | Low (you decide) |
| Annual cost on $100K | $80 | $30 |
| Savings from DIY | — | $50/year |
Is $50/year worth the effort? For most people, no. The automatic rebalancing and emotional guardrails of a target-date fund are worth the marginal fee difference. The investors who benefit from DIY are those who enjoy managing their portfolio and have the discipline to stay the course during market downturns.
How to Choose the Right Target-Date Fund Year
Selecting Your Target Year
| Your Current Age | Planning to Retire At | Target Year | Fund Example |
|---|---|---|---|
| 25 | 65 | 2065 | Vanguard Target Retirement 2065 |
| 30 | 65 | 2060 | Vanguard Target Retirement 2060 |
| 35 | 65 | 2055 | Vanguard Target Retirement 2055 |
| 40 | 65 | 2050 | Vanguard Target Retirement 2050 |
| 45 | 65 | 2045 | Vanguard Target Retirement 2045 |
| 50 | 65 | 2040 | Vanguard Target Retirement 2040 |
| 55 | 65 | 2035 | Vanguard Target Retirement 2035 |
| 60 | 67 | 2033 | Vanguard Target Retirement 2035 |
If you want more risk: Choose a fund 5–10 years later than your actual retirement (e.g., choose 2060 instead of 2055). This keeps a higher stock allocation longer.
If you want less risk: Choose a fund 5 years earlier than your actual retirement.
Target-Date Funds in 401(k) Plans
Most 401(k) plans offer target-date funds as their default investment option (QDIA — Qualified Default Investment Alternative). If your 401(k) has target-date funds, check which provider:
What to Do Based on Your 401(k) Provider
| Provider in Your 401(k) | Expense Ratio | Recommendation |
|---|---|---|
| Vanguard Target Retirement | 0.08% | Excellent — use it |
| Fidelity Freedom Index | 0.12% | Very good — use it |
| Schwab Target Index | 0.08% | Excellent — use it |
| T. Rowe Price Retirement | 0.55% | OK if no index option available |
| Fidelity Freedom (active) | 0.61% | Check if Freedom Index version is available instead |
| American Funds | 0.39–0.66% | High fees — consider DIY with index funds if available |
| JPMorgan SmartRetirement | 0.56% | Check for cheaper alternatives in your plan |
If your 401(k) only offers expensive target-date funds (0.50%+), check whether the plan has individual index funds. Building a simple 3-fund portfolio from low-cost index funds can save thousands over your career.
Growth Projections: Target-Date Fund Wealth Over Time
$500/Month Invested in Vanguard Target Retirement (0.08% ER, Starting at Age 25)
| Age | Total Contributed | Estimated Balance | Growth |
|---|---|---|---|
| 30 | $30,000 | $37,200 | $7,200 |
| 35 | $60,000 | $89,400 | $29,400 |
| 40 | $90,000 | $163,500 | $73,500 |
| 45 | $120,000 | $268,800 | $148,800 |
| 50 | $150,000 | $417,200 | $267,200 |
| 55 | $180,000 | $523,800 | $343,800 |
| 60 | $210,000 | $629,500 | $419,500 |
| 65 | $240,000 | $738,400 | $498,400 |
Assumes 8% gross return decreasing to 6% as fund shifts to bonds per glide path. Actual returns will vary.
Frequently Asked Questions
Can I have more than one target-date fund?
You can, but it defeats the purpose. If you own a 2040 and a 2060 fund, your combined allocation won’t match either glide path. Pick the single fund closest to your retirement year and put all your money there.
Should I change my target-date fund as I get older?
No — the fund changes itself. That’s the whole point. A 2055 fund automatically shifts from 90% stocks to 50% stocks as you approach 2055. You buy it once and never need to change. The only reason to switch is if you change your expected retirement year significantly.
Are target-date funds good for a Roth IRA?
Target-date funds are excellent for a Roth IRA. In fact, the combination of tax-free growth (Roth) with automatic rebalancing (target-date) is the simplest possible retirement investment setup. Open a Roth IRA, buy one target-date fund, set up automatic contributions, and you’re done.
What if my 401(k) doesn’t have good target-date funds?
If your 401(k) only offers expensive target-date funds (0.50%+), build a simple portfolio from the cheapest index funds in your plan: a US stock fund, an international stock fund, and a bond fund. Adjust the allocation manually once per year. Use a target-date fund in your IRA where you have full fund choice.
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