BrokerTH
Thai investors looking beyond SET for US stocks, ETFs, options, or international markets typically end up considering three main options: Interactive Brokers (IBKR), Saxo Bank, or Webull. Each is structured differently and suits different investor profiles. Here’s the 2026 comparison.
Interactive Brokers (IBKR)
IBKR is the institutional-grade choice. Access to 150+ global markets, including US, European, and Asian equities, futures, options, bonds, ETFs, and forex. Commissions are among the lowest available — typically $0.005 per share with minimums of $1 per trade. Margin rates are competitive (around benchmark + 1-1.5%).
The platform is powerful but complex. Trader Workstation has a steep learning curve. The mobile app is functional but less polished than retail-focused competitors. Minimum funding is modest (around $10,000 for full features, lower for IBKR Lite).
For Thai users, IBKR opens individual accounts with proper Thailand tax residency declaration. Custody is in the broker’s name, which is standard for global brokers.
Saxo Bank
Saxo is the European-flavored alternative, headquartered in Denmark with significant Asian operations through Saxo Singapore. Access to global markets is broad but commissions are higher than IBKR. Saxo’s platform is more user-friendly and the analyst research is solid.
Saxo serves Thai clients through its Singapore entity, which is regulated by the Monetary Authority of Singapore. That’s strong regulatory ground but means your account is structured under Singapore law rather than directly under Thai jurisdiction.
Minimum funding is higher than IBKR for premium tiers (Saxo Platinum requires meaningful balances). Pricing is competitive for active traders but premium-priced for occasional investors.
Webull
Webull is the retail-friendly newcomer. Slick mobile app, zero commission on US stocks and ETFs, fractional share trading, and integrated educational content. Asset coverage is narrower than IBKR or Saxo — primarily US equities, ETFs, and options.
For Thai users, Webull’s path can be murkier. The platform offers Thai-language support and serves Thai customers, but the corporate structure that handles Thai users isn’t as clearly licensed as IBKR or Saxo. Worth verifying which specific Webull entity holds your account.
The lower cost makes Webull attractive for small accounts and beginner investors. Power-user features are limited compared to IBKR.
Asset coverage
IBKR: broadest. US, European, Asian equities, bonds, options, futures, forex, mutual funds. If you want to trade Japanese small caps or German bonds, IBKR has them.
Saxo: similar breadth, with particular strength in European markets and structured products.
Webull: US-focused. Sufficient for investors building US-only portfolios, limited for global diversification.
Fees and total cost
For a typical Thai investor making 20 trades per year, average $5,000 per trade in US stocks: IBKR commission would total roughly $20-40 annually. Saxo would be $200-400. Webull would be $0 but spreads may be slightly wider on individual fills.
Add platform/inactivity fees: IBKR charges them on smaller accounts. Saxo has tiered fees. Webull has none.
Which to actually pick
For serious investors building diversified global portfolios: IBKR. The cost advantage and asset coverage are decisive over a multi-year horizon. Accept the learning curve.
For Thai investors prioritizing service and analyst research, particularly with larger account balances: Saxo. The premium pricing is justified by the support and platform quality.
For beginners or small-account holders starting US-only investing: Webull. Easy onboarding and zero commissions reduce friction. Plan to migrate to IBKR or Saxo if your account grows substantially.
Tax considerations for Thai investors
Thai tax residents pay 15% withholding tax on US dividends (with proper W-8BEN filed). Capital gains on foreign equities held by Thai residents are typically taxable when remitted to Thailand, though the rules have nuance. Working with a Thai tax adviser for cross-border investment income is worth the modest cost.
None of these brokers automatically integrate with Thai tax filings the way Thai-domiciled brokerages do. You’ll need to track positions and produce reports manually or via accounting software at tax time.
