📅 Last updated: March 2026
Opening a Roth IRA is step one. The real magic comes from what you put inside it. The right investments in your Roth IRA can mean the difference between a comfortable retirement and a transformational one. Here are the best Roth IRA investments for long-term growth in 2026.
Why Investment Choice Matters in a Roth IRA
Because Roth IRA growth is tax-free forever, you want to maximize growth inside this account. High-growth assets belong here more than anywhere else in your portfolio — every dollar of gains compounds without ever being reduced by taxes. This makes your investment selection especially important.
Best Roth IRA Investments for 2026
1. Total Stock Market Index Funds ⭐ Best for Most Investors
A total market index fund is the single best holding for most Roth IRA investors. These funds own a slice of every publicly traded U.S. company — thousands of stocks in one simple investment.
Top picks:
- Fidelity ZERO Total Market Index (FZROX) — 0% expense ratio, no minimums
- Vanguard Total Stock Market ETF (VTI) — 0.03% expense ratio, highly liquid
- Schwab Total Stock Market Index (SWTSX) — 0.03% expense ratio
Historical average annual return: ~10% (before inflation). $7,000/year invested for 30 years at 10% = $1.26 million — all tax-free.
2. S&P 500 Index Funds
Tracking the 500 largest U.S. companies, S&P 500 index funds are the gold standard of long-term investing. Warren Buffett famously recommends them for most investors.
Top picks:
- Vanguard S&P 500 ETF (VOO) — 0.03% expense ratio
- Fidelity 500 Index Fund (FXAIX) — 0.015% expense ratio
- iShares Core S&P 500 ETF (IVV) — 0.03% expense ratio
3. Target-Date Funds (Hands-Off Approach)
Target-date funds automatically adjust their stock/bond allocation as you approach retirement. Pick the fund closest to your expected retirement year and never rebalance again.
Example: Vanguard Target Retirement 2055 Fund (VFFVX) starts heavily stock-focused and gradually shifts to bonds as 2055 approaches. Expense ratio: 0.08%.
These are ideal for investors who don’t want to manage their portfolio actively.
4. International Index Funds
Diversifying globally reduces risk and can boost returns when international markets outperform. Consider a 20-30% allocation to international stocks.
- Vanguard Total International Stock ETF (VXUS) — 0.07% expense ratio
- iShares Core MSCI EAFE ETF (IEFA) — 0.07% expense ratio
5. Growth ETFs (Higher Risk, Higher Reward)
For investors with a longer time horizon and higher risk tolerance, growth-focused ETFs can supercharge Roth IRA returns. Because gains are tax-free, this is the right place for your highest-growth bets.
- Invesco QQQ (QQQ) — Nasdaq 100, tech-heavy, 0.20% expense ratio
- Vanguard Growth ETF (VUG) — Large-cap growth, 0.04% expense ratio
What NOT to Put in a Roth IRA
- Municipal bonds — Already tax-exempt; wasting your Roth’s tax advantage
- Low-yield CDs or savings accounts — Growth is minimal; tax benefit is wasted
- Annuities — Usually come with high fees and you’re double-paying for tax advantages
- Collectibles, life insurance, or S-corp stock — IRS prohibits these in IRAs
Sample Roth IRA Portfolios
Simple 3-Fund Portfolio (Recommended for Most)
| Fund | Allocation |
|---|---|
| U.S. Total Stock Market (VTI) | 60% |
| International Stock Market (VXUS) | 30% |
| U.S. Bond Market (BND) | 10% |
Aggressive Growth Portfolio (Under 40)
| Fund | Allocation |
|---|---|
| S&P 500 (VOO) | 70% |
| Nasdaq 100 (QQQ) | 20% |
| International (VXUS) | 10% |
Using a Robo-Advisor for Your Roth IRA
If you’d rather not pick individual funds, robo-advisors like Betterment and Wealthfront will automatically build and manage a diversified Roth IRA portfolio for you. They handle rebalancing, tax optimization, and asset allocation automatically.
Try Betterment for automated Roth IRA management →
Try Wealthfront for tax-optimized Roth IRA growth →
Bottom Line
For most investors, a simple total market index fund or S&P 500 fund is the ideal Roth IRA investment. Keep costs low, stay invested, and let decades of tax-free compounding do the work. The best investment is the one you’ll hold for 30+ years without panic-selling.
Related: The Complete Roth IRA Guide 2026 | Index Funds vs ETFs | Dollar-Cost Averaging Guide