Quick verdict
IBKR is what professionals use, and the new IBKR Lite tier gives retail investors the same global reach with zero commissions on US stocks.
Pros
- 150+ markets in 33 countries
- Industry-low margin rates
- Fractional shares from $1
- Top-tier regulation worldwide
Cons
- Desktop platform has a learning curve
- Customer support can be slow
Who is Interactive Brokers best for?
Based on our testing, Interactive Brokers is the strongest fit for: serious investors who want global market access. Anyone outside that profile should compare it carefully against the alternatives in our comparison hub before opening an account.
Fees and what you actually pay
Headline fees are From $0 (IBKR Lite), but real cost depends on what and how often you trade. We've broken down the most common scenarios in the table above. The biggest "hidden" cost we found during testing was the spread on lower-volume markets, so make sure you check the live spread for your specific instrument before committing significant capital.
Regulation and safety
Interactive Brokers is regulated by SEC, FCA, FINRA, IIROC. That means client funds are held in segregated accounts and the platform is subject to regular audits. This is the single most important box to check before depositing money, and Interactive Brokers passes it cleanly.
Bottom line
Interactive Brokers earns a 4.8/5 from our editorial team. If you fit the "serious investors who want global market access" profile, it's one of the strongest options in 2026.