As observed, broker fees are the main factor that determines how much profit we actually make because they are like business costs. High fees = fewer profit opportunities. Low fees = increased profit. Basically, that's it.

So I’ve compared the major broker fees in Thailand clearly to show which one is better to choose.

Starting with Bualuang - this is part of Bangkok Bank. The advantage is no minimum fee; you pay only for what you buy. Cash Balance accounts charge 0.15%, Cash Account accounts charge 0.20%. This is good for small investors.

Innosource (formerly SCB Securities) also has no minimum fee, with the same rates of 0.15% and 0.20% depending on the account.

But if we talk about truly low fees, SBI Thai Online is the real deal - only 0.075% for Cash Balance accounts, which is rare among Thai brokers. No minimum fee either. Great for traders with small volumes.

Kasikornbank, Thanachart, UOB, and Philip also have standard rates of 0.15% and 0.20%, but with a minimum fee of 50 baht. Be careful here because if you buy stocks worth only 20,000 baht, the actual fee will be higher than the rate they advertise.

As for Liberator - this one is quite different because it offers "0% commission" directly, with no minimum fee. You pay nothing regardless of how much you buy. If you want the most cost-effective option, this is a good choice.

Other options like Tisco, Krungthai, and XSpring also have no minimum fee, with rates of 0.15% and 0.20% depending on the account.

In reality, choosing a broker isn’t just about fees. You should consider the overall package—system quality, convenience, customer service, deposit interest rates, etc. But for small investors who want the lowest fees, Liberator or SBI Thai are good options. Others depend on individual needs.