I've had accounts at six brokerages over the past fifteen years — three I still use, two I closed because of fees or bad interfaces, one that got acquired. The best online brokerages in 2026 all have zero stock and ETF commissions, no account minimums, and decent trading tools. The differences are in the details: account types, fund selection, research quality, and whether the platform actively pushes you into products you didn't ask for. Here's my honest breakdown.
Fidelity is my primary brokerage and the one I recommend to most people. Commissions are zero on stocks and ETFs, there are no minimums, and fractional shares are available on thousands of stocks and ETFs. The website and mobile app are genuinely good — clean, fast, and not buried under upsells.
Two specific advantages: Fidelity's own zero-expense-ratio index funds (FZROX, FZILX) cost literally nothing to own, and their cash sweep pays a competitive money-market rate automatically. Research from Recognia, Thomson Reuters, and their own equity team is included free.
Watch out for: the occasional prompt to open managed advisory services. Easy to ignore.
Schwab is the closest competitor to Fidelity, and for many people it's equally good. Zero commissions, no minimums, fractional shares ("Stock Slices"), and a huge fund marketplace. Customer service is the standout — phone support is US-based, wait times are short, and branches exist in most major cities if you want to talk to someone in person.
Schwab's investor checking account is also excellent: no fees, no foreign transaction fees, and ATM fees rebated worldwide. I keep one as my travel account.
Schwab merged with TD Ameritrade and migrated those accounts onto Schwab's platform; the thinkorswim trading software survived and remains one of the best free tools for active traders.
Vanguard is structurally different: it's owned by its funds, which means profits flow back to investors as lower costs. It's the natural home for long-term index fund investors. The expense ratios on VTI, VOO, VTSAX, and their target-date funds remain the benchmark everyone else matches.
The tradeoff is the platform itself: the website is functional but clunky, the app is mediocre, and fractional share trading for ETFs is limited. Vanguard is also strict about its own funds — some have $1,000–$3,000 minimums (though ETF versions avoid this).
Who it's for: buy-and-hold investors who want to set up a few index funds and never log in again. If you want a polished app or active trading, Fidelity or Schwab.
Interactive Brokers (IBKR) is the professional's platform. It offers access to stocks, options, futures, forex, and bonds in 150+ markets, margin rates that are dramatically lower than the big three, and order routing that actually seeks price improvement. IBKR Lite offers zero-commission stock trades; IBKR Pro charges small commissions but gets you the better execution and margin.
The downside: the platform is powerful but complex. If you don't know what a limit order is, you don't need it. For serious options or futures traders, and for international investing, it's the best choice.
M1 lets you build a "pie" of stocks and ETFs with target percentages, then automatically invests new deposits to rebalance toward those targets. It's the most hands-off way to run a custom portfolio: set your allocation once, deposit money weekly, and never place an individual trade.
Zero trading commissions and no management fee on the base tier. The tradeoffs: no intraday trading (orders execute in one window), and the paid subscription tiers aren't worth it for most people. Good for rule-based investors who want more customization than a single target-date fund.
For most people opening their first account: Fidelity or Schwab, whichever interface you like better. If you're committed to pure index investing and don't care about the app: Vanguard. If you trade options or futures seriously: Interactive Brokers. If you want a fully automated custom allocation: M1.
Account type matters as much as the broker. If this is retirement money and you qualify, use a Roth IRA (see my Roth vs traditional guide) and take the employer 401(k) match first — it's a 100% return before any brokerage choice matters. Once the account is open, see my guide on starting with $100 for what to actually buy. My compound interest calculator shows how early regular contributions build over time, and the savings goal calculator works out what monthly deposit reaches a target.
I've moved money between six brokerages since 2010. This site is one person writing about money — not a financial advisor, just what actually worked.