We evaluated 20+ platforms on the metrics that actually matter for buy-and-hold investors: fund costs, retirement tools, dividend reinvestment, and research quality. Here are the top 5.
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Jump to any broker for the full breakdown, including pros, cons, and key stats.
| Broker | Best For | Commission | Min. Deposit | Rating | |
|---|---|---|---|---|---|
| #1Fidelity | Best Overall for Long-Term | $0 | $0 | 4.9 | Open Account → |
| Charles Schwab | Best for Retirement Planning | $0 | $0 | 4.8 | Open Account → |
| SoFi Invest | Best for Set-It-and-Forget-It | $0 | $0 | 4.7 | Open Account → |
| Interactive Brokers | Best for Global Diversification | $0 (IBKR Lite) | $0 | 4.6 | Open Account → |
| TD Ameritrade | Best Research & Education | $0 | $0 | 4.5 | Open Account → |
Fidelity is the gold standard for long-term investors — zero commissions, fractional shares, powerful retirement tools, and the best research ecosystem in the industry. No gimmicks, just results.
Schwab's full-service platform pairs $0 commissions with exceptional retirement planning resources, branch access, and a broad lineup of mutual funds — perfect for investors playing the long game.
SoFi's automated investing feature builds and rebalances a diversified portfolio for you — ideal for long-term investors who want a hands-off approach without paying robo-advisor fees.
IBKR's global reach gives long-term investors access to stocks, ETFs, bonds, and funds across 150 markets in 33 countries — unmatched for portfolios that need international exposure.
TD Ameritrade remains one of the best-resourced platforms for long-term investors who want to understand what they're buying — with extensive third-party research, screeners, and education content.
All five brokers compared on the metrics that matter most for long-term, buy-and-hold investors.
| Feature | Fidelity | Charles Schwab | SoFi Invest | Interactive Brokers | TD Ameritrade |
|---|---|---|---|---|---|
| Commission | $0 | $0 | $0 | $0 (Lite) | $0 |
| Min. Deposit | $0 | $0 | $0 | $0 | $0 |
| Fractional Shares | ✓ | ✓ | ✓ | ✓ | ✗ |
| Robo-Advisor | ✓ | ✓ | ✓ | ✗ | ✗ |
| IRA / Roth IRA | ✓ | ✓ | ✓ | ✓ | ✓ |
| DRIP (Auto Reinvest) | ✓ | ✓ | ✓ | ✓ | ✓ |
| Zero-ER Index Funds | ✓ | ✗ | ✗ | ✗ | ✗ |
| Research Quality | ★★★★★ | ★★★★★ | ★★★☆☆ | ★★★★☆ | ★★★★★ |
| Mobile App | ★★★★☆ | ★★★★☆ | ★★★★★ | ★★★☆☆ | ★★★★☆ |
Short-term traders care about speed and tools. Long-term investors care about something different — here's what actually moves the needle over decades.
A 0.5% expense ratio vs. 0.03% costs you tens of thousands of dollars over 30 years. Prioritize brokers with ultra-low-cost funds.
The best long-term brokers support Traditional IRA, Roth IRA, SEP IRA, and 401(k) rollovers with strong tax optimization tools.
Automatic dividend reinvestment compounds your returns effortlessly over time. All top platforms support this at no extra cost.
Whether manual or automated (robo-advisor), the ability to rebalance your allocation keeps your risk in check as markets shift.
Quality third-party research (Morningstar, S&P) helps you evaluate ETFs and stocks before committing capital for the long haul.
You want a broker that will still be around in 30 years. Choose established, well-capitalized institutions with strong regulatory track records.
Picking the right account type is just as important as picking the right broker. Here's a quick breakdown.
Best for most investors under 50. You contribute after-tax dollars, your investments grow tax-free, and withdrawals in retirement are 100% tax-free. 2026 contribution limit: $7,000 ($8,000 if 50+).
Best brokers: Fidelity, Schwab, SoFi
Contributions may be tax-deductible depending on your income. Growth is tax-deferred, meaning you pay taxes when you withdraw in retirement. Great for high earners who expect a lower tax rate in retirement.
Best brokers: Fidelity, Schwab, TD Ameritrade
No contribution limits and no withdrawal restrictions. Best used alongside retirement accounts once you've maxed those out. Long-term capital gains rates are favorable for buy-and-hold investors.
Best brokers: Fidelity, Interactive Brokers, Schwab
Built for self-employed individuals and small business owners. Contribution limits are dramatically higher — up to $69,000 in 2026 for SEP IRAs. Fidelity and Schwab are standouts here.
Best brokers: Fidelity, Schwab
Fidelity is our #1 pick for long-term investors — $0 commissions, zero-expense-ratio index funds, and best-in-class retirement tools.
Read Our Full Fidelity ReviewNo affiliate link — independent recommendation.