2026 Latest Sub Brokerage Fee Guide: Understand Commissions, Minimum Charges, and Hidden Costs in One Go

Amid the surge in overseas investing, sub brokerage has become the preferred choice for many Taiwanese investors. However, the complex calculation methods for sub brokerage fees and commissions often leave investors confused and can even affect actual returns. Many investors are searching for affordable sub brokerage services in hopes of lowering minimum charge standards. This article provides an in-depth analysis of the various fee standards and minimum charge limits for sub brokerage in 2026, and through practical comparisons, helps you find the most affordable and efficient sub brokerage services, making your overseas investment journey smoother. 

Breakdown of Sub Brokerage Fees and Commission Components

Before conducting an in depth comparison of fee structures across financial institutions, it is essential to first understand what sub brokerage fees actually include. This is much like understanding fuel and maintenance costs before driving. Knowing what to expect helps you avoid unnecessary hidden sub brokerage costs.

What Is Sub Brokerage? Overview of the Fee Structure

Sub brokerage, formally known as “entrusted trading of foreign securities”, refers to Taiwanese brokerage firms or banks accepting client instructions and placing trades for foreign stocks, ETFs, bonds, and other financial products through overseas partner brokerage firms. This service allows Taiwanese investors to participate more conveniently in international markets, but it also generates a series of service fees.

The fee structure of sub brokerage generally includes the following major categories:

• Trading fees (commissions): This is the primary cost, usually charged as a certain percentage of the transaction amount, and subject to a minimum charge threshold.
• Custody fees: Charged on overseas assets held by investors, commonly seen in the banking system, usually calculated as a percentage of net asset value or a fixed amount on a quarterly or annual basis.
• Transaction taxes and levies: Taxes and fees imposed by local governments or exchanges in overseas markets, such as US securities transaction fees and dividend taxes.
• Remittance fees and exchange spreads: Fees and exchange rate differences incurred when converting funds between TWD and foreign currencies.
• Other miscellaneous fees: Such as dividend collection fees, depository fees, and redemption fees, which vary depending on the financial product and service scope.

Detailed Explanation of Sub Brokerage Fees, Trading Commissions, and Custody Fees

To truly grasp the nuances of sub brokerage fee comparisons, it is necessary to examine each fee item in detail.

• Trading fees (commissions): This is the cost component that most directly affects investment expenses. Different providers set different rates based on product categories (such as US stocks, Hong Kong stocks, or Japanese stocks). For example, US stock trading commissions may range from 0.1% to 1% of the transaction amount. It is important to note that almost all providers impose a “minimum charge standard”, meaning that even for small transactions, the minimum fee must still be paid. For small capital investors, this minimum charge is often the key factor affecting costs. For example, if a brokerage firm charges a 0.2% commission on US stocks with a minimum charge of USD 50, and you purchase USD 1,000 worth of stock, the commission should be USD 2, but due to the minimum charge requirement, you would still need to pay USD 50.
• Custody fees: These are mainly charged for the safekeeping of overseas assets. Banks typically charge custody fees, usually calculated quarterly, with rates around 0.1% to 0.3%, and some banks may set an upper limit. Brokerage firms are less likely to charge custody fees, which is one of their advantages in offering affordable sub brokerage services.
• Transaction taxes and levies: These fees are imposed by overseas local governments or exchanges and are not set by financial institutions, and are generally non negotiable. For example, investing in US stocks involves dividend withholding tax (which is usually 30% for non US residents) and selling certain assets may also incur transaction levies. Investors should understand the tax regulations of the target market before investing.
• Remittance fees and exchange spreads: When you remit funds from a TWD account to a foreign currency account, or when overseas dividends are converted back into a TWD account, banks charge remittance fees. In addition, the spread between spot and cash exchange rates when buying or selling foreign currency can quietly erode your returns. Choosing banks with more favorable exchange rates or exchanging currency during periods of lower volatility is an effective way to reduce these costs.

Comparison of Sub Brokerage Fee Standards and Minimum Charges Among Major Brokerage Firms and Banks in 2026

When choosing sub brokerage services, the most frustrating aspect for many investors is the wide variety of fee structures across financial institutions. To identify the most cost effective sub brokerage option, it is not enough to look only at commission rates. You must also pay close attention to sub brokerage minimum charge standards. 

Analysis of Commission Rates and Minimum Charge Thresholds Across Financial Institutions

Below, we have compiled commonly seen sub brokerage service providers on the market, (including banks and brokerage firms), and briefly analyzed their pricing features. Please note that actual rates may vary depending on promotional campaigns or client tiers. Before investing, be sure to confirm the latest information with each provider.

Sub Brokerage Services Offered by Brokerage Firms:

• Yuanta Securities: Known for its broad market coverage and diversified products. US stock commissions are approximately 0.2% to 0.5%, with a minimum charge of about USD 15 to USD 30. For investors who trade frequently or in larger volumes, there may be greater room for negotiation.
• Fubon Securities: Offers competitive US stock commission rates, approximately 0.15% to 0.3%, with relatively lower minimum charges of about USD 10 to USD 25. Suitable for investors with a certain level of trading volume who are seeking affordable sub brokerage services.
• Cathay Securities: Provides the convenience of online account opening and trading. US stock commissions are approximately 0.15%, with a minimum charge of about USD 15 to USD 20. Attractive for investors accustomed to digital operations.
• Sinopac Securities: US stock commissions are approximately 0.18%, with a minimum charge of about USD 15. Some programs may offer more favorable rates.

Sub Brokerage Services Offered by Banks:

• CTBC Bank: US stock commissions are approximately 0.3% to 0.6%, with a minimum charge of about USD 30 to USD 50. Custody fees are typically charged at about 0.2% of net asset value. Its advantages lie in asset management services and cross border wealth management convenience.
• Cathay United Bank: US stock commissions are similar to CTBC Bank, with comparable minimum charge thresholds. Custody fees are also charged. Suitable for investors who prefer consolidating assets within the same bank.
• Sinopac Bank: US stock commissions are approximately 0.35%, with a minimum charge of about USD 30. Offers a diversified selection of investment tools.

Table: Overview of Fees Among Major Sub Brokerage Providers (2026 Reference)

How to Find the Most Suitable Affordable Sub Brokerage Service: Comparison Table and Recommendation Principles

Among so many options, how can you find the provider that best suits you while still achieving an affordable sub brokerage service? Below are several principles for your reference:

• Assess your trading frequency and transaction size: If you are a small, low frequency investor, then the “minimum charge standard” will have a greater impact on you than the “rate”. For example, if your single transaction amount is below USD 10,000, a provider with a USD 50 minimum charge may cost far more than a provider with a USD 15 minimum charge. Conversely, if you trade frequently and in large amounts, small differences in rates can accumulate into significant costs.
• Pay attention to whether custody fees apply: Banks typically charge custody fees, which can be a substantial cost for investors who hold assets over the long term. Brokerage firms generally do not charge custody fees, which is a major advantage in sub brokerage fee comparisons.
• Consider whether there are remittance fee discounts: Some providers offer exchange rate promotions or remittance fee waivers. If you need to exchange currencies frequently, this can be an effective strategy for reducing sub brokerage fees.
• Check other miscellaneous fees: Confirm whether there are dividend collection fees, depository fees, information notification fees, and similar charges. Although these fees may not be high per instance, they can add up over time and should not be overlooked.
• Platform interface and customer service quality: Fees are important, but a smooth trading experience and timely customer support are equally essential. Choosing a platform with an intuitive interface and fast customer service responses can make your investment process more reassuring.

Based on the considerations above, if you are seeking affordable sub brokerage services and your trading frequency or transaction size falls in the low to mid range, brokerage firms are usually the more cost effective choice. If you prefer one stop financial services, have higher needs for asset allocation, and have a larger asset base, banks can provide more comprehensive services, but you should pay attention to additional costs such as custody fees.

Smart Budgeting: Five Strategies to Avoid Potential Hidden Sub Brokerage Costs

In addition to the visible sub brokerage fees and commissions, overseas investing also comes with certain easily overlooked hidden sub brokerage costs. If not managed carefully, these costs may quietly erode your investment returns. Below are five smart budgeting strategies to help you save unnecessary expenses. 

1.Impact of Currency Exchange Fees and Exchange Rate Spreads

When you invest in overseas markets, the most common hidden cost is “currency exchange”.

• Currency exchange fees: When you buy or sell foreign currencies, banks charge a handling fee. Some banks offer discounts for online currency exchange, or even waive the fee entirely. You can regularly pay attention to currency exchange promotions offered by banks, such as “spread reduction offers” or “fee free exchange during specific periods”.
• Exchange rate spreads: This is the most easily overlooked yet most impactful cost. When banks buy and sell foreign currencies, there is a spread (between the spot exchange rate and the cash exchange rate). Whether you are converting TWD into foreign currency for investment, or converting overseas profits back into TWD, exchange rate spreads will be incurred. While this cost cannot be completely avoided, you can reduce its impact by using “staggered currency exchange” or choosing periods with “relatively lower exchange rate volatility”. Many investment experts suggest that when investing overseas through regular investment plans, you can set up automatic currency exchange, or pre convert a certain amount of foreign currency when exchange rates are relatively favorable.

2. Other Miscellaneous Fees and Points to Note

In addition to the two items above, there are some minor fees that require careful review before signing a sub brokerage agreement.

• Dividend collection fees: If your investment distributes dividends, some financial institutions charge a dividend collection fee. This fee is usually charged per occurrence or as a percentage, and for investors who receive dividends frequently, it can become a meaningful expense over the long term.
• Depository fees or information transmission fees: A small number of providers may charge depository fees for specific overseas markets or products, or fees related to transmitting shareholder meeting notices and other information.
• Inactive account management fees: If your sub brokerage account has no trading activity within a specified period, some providers may charge an “inactive account management fee”. This is particularly important for long term investors who trade infrequently.
• Settlement fees: Settlement rules vary across overseas markets, and occasionally some settlement related fees may arise. Although these fees are usually small, being aware of their existence helps you fully understand total costs.

Reducing sub brokerage trading costs is not only about choosing providers with lower rates, but more importantly about gaining a comprehensive understanding of all potential fee items and selecting the most suitable service based on your investment habits and trading frequency. Making good use of promotional offers launched by different providers can also effectively reduce expenses. For example, some brokerage firms offer first year custody fee waivers or commission free trading up to a certain amount. Only through thorough comparison can your overseas investment journey become more stable and sustainable.

Learn more: Cathay United Bank_Sub Brokerage Section 

FAQ

Q: Do Sub Brokerage Fees Vary Based on Trade Size?

A: Yes. Sub brokerage fees (commissions) are usually charged as a percentage of the transaction amount, so the larger the trade size, the higher the commission amount calculated on a proportional basis. However, almost all providers set a “minimum charge standard”, which means that even if the transaction amount is very small, a fixed minimum fee still applies. Therefore, for small capital investors, the impact of the minimum charge standard may be greater than the actual commission rate and requires special attention.

Q: What Are Some Ways to Reduce Sub Brokerage Trading Costs?

A: There are several main ways to reduce sub brokerage trading costs:

• Choose brokerage firms with low commission rates and low minimum charge thresholds: Especially important for small amounts or low to mid frequency traders.
• Avoid frequent trading: Each trade incurs fees and commissions, and excessive trading will quickly accumulate costs.
• Pay attention to custody fees: Prioritize brokerage firms that do not charge custody fees. If choosing a bank, consider the impact of custody fees on long term holdings.
• Make use of currency exchange promotions: Watch for exchange rate discounts or fee free exchange campaigns offered by banks or brokerage firms, and exchange currency when rates are relatively favorable.
• Understand all miscellaneous fees: Read contract terms carefully to avoid unexpected dividend collection fees, depository fees, or inactive account management fees.

Q: Besides Fees and Commissions, What Other Costs May Arise With Sub Brokerage?

A: In addition to basic trading fees (commissions), sub brokerage may also involve the following costs:

• Custody fees: Some banks charge fees based on a percentage of net asset value.
• Transaction taxes and levies: Taxes imposed by local governments or exchanges in overseas markets, such as dividend withholding tax and securities transaction tax.
• Remittance fees and exchange rate spreads: Incurred when converting funds between TWD and foreign currencies.
• Dividend collection fees: Fees for handling overseas stock dividend distributions.
• Depository fees or information transmission fees: Charged for specific products or services.
• Inactive account management fees: Charged by some providers for accounts with no trading activity over an extended period.

Before investing, be sure to carefully review the fee disclosures of each financial institution to fully understand total investment costs.

Conclusion: Master Sub Brokerage Fees Smartly and Begin Your Global Investment Journey

Understanding the details of sub brokerage fees is a key step toward successful overseas investing. Through the in-depth analysis and sub brokerage fee comparisons in this article, you should now have a clearer understanding of sub brokerage fees, commissions, minimum charge standards, and how to choose affordable sub brokerage services. Remember, selecting the most suitable sub brokerage plan is not just about looking at a single rate. It requires a comprehensive assessment of your trading habits, investment amount, and all potential hidden sub brokerage costs.

Evaluate your investment needs now and choose the sub brokerage plan that best maximizes your efficiency. Whether you are a cost focused active trader or a long term investor seeking comprehensive asset management services, you can find an overseas investment strategy that suits you. Wishing you a successful start and strong returns on your global investment journey in 2026!