Last updated: May 2026
Brokerage fees can make your account activity look confusing. You may place a trade expecting one total amount, then see small line items such as commission, regulatory fee, ADR fee, stamp duty, exchange fee, or margin interest on your confirmation or monthly statement.
This broker fee glossary explains the common charges investors may see, what they usually mean, when they may apply, and where to verify them. The goal is not to avoid every fee, but to understand what each line item represents so your records make sense.
Quick Answer: Common Broker Fees Explained
Broker fees and trading charges usually fall into a few categories:
| Fee Type | What It Usually Means | Where You May See It |
|---|---|---|
| Commission | Broker charge for executing a trade | Trade confirmation |
| SEC fee | U.S. regulatory fee commonly seen on eligible sell transactions | Trade confirmation |
| ADR fee | Depositary bank fee for holding or administering an ADR | Monthly statement or activity history |
| Stamp duty / SDRT | Market tax on certain share purchases in some countries | Trade confirmation or activity section |
| Margin interest | Interest charged when borrowing against securities | Monthly statement |
| Account service fee | Administrative charge such as wire, paper statement, or transfer fee | Monthly statement or activity history |
If you are trying to match a fee to your account activity, start with your trade confirmation and monthly statement. For help reading those records, see How to Read a Monthly Brokerage Statement.
Why Broker Fees Appear
Not every charge on your account comes directly from your broker. Some fees are broker charges. Others are pass-through charges collected from regulators, exchanges, clearing firms, depositary banks, or tax authorities.
This distinction matters because a broker may advertise “commission-free” trading while still passing through other required or product-specific charges.
Broker charges
Broker charges are fees the brokerage sets for services such as trading, account maintenance, wire transfers, paper statements, advisory programs, or margin lending.
Pass-through fees
Pass-through fees originate from another organization and are collected through the broker. Examples can include certain regulatory fees, exchange fees, depositary fees, or market taxes.
Commission
A commission is a fee charged by a broker for executing a trade. Some brokers charge commissions on certain products, while others offer $0 commissions for specific securities such as U.S.-listed stocks or ETFs.
Commissions can be structured in different ways:
- Flat fee — A fixed amount per trade.
- Per-share or per-contract fee — A fee based on the number of shares, units, or contracts.
- Tiered fee — A rate that changes based on trading volume or account level.
- Product-specific fee — A charge that applies to options, bonds, futures, OTC securities, or international trades.
Commission-free does not always mean cost-free. Spreads, regulatory charges, currency conversion, product fees, and taxes can still affect the total cost of trading.
SEC Fee
The SEC fee, often connected to Section 31 fees, is a U.S. regulatory transaction fee commonly seen on certain securities sales. Investors usually notice it as a small charge on eligible sell transactions rather than on purchases.
The rate can change over time, so the same-sized sale may not always show the same fee in different periods.
You may see it listed as:
- SEC fee
- Section 31 fee
- Regulatory transaction fee
- SEC transaction fee
If the fee appears on a trade confirmation, compare it with the trade value and your broker’s explanation of regulatory fees.
ADR Fee
An ADR fee is a charge connected to American Depositary Receipts. ADRs allow U.S. investors to hold receipts representing shares of certain foreign companies.
The fee is usually connected to the depositary bank that administers the ADR program. It may cover custody, administration, dividend processing, corporate actions, and other program services.
You may see this fee listed as:
- ADR fee
- ADR service fee
- ADR pass-through fee
- Depositary fee
- Custody fee
ADR fees may appear even if you did not trade that month. Sometimes they are deducted from dividends. Other times they appear as a separate line item in your account activity.
Stamp Duty and SDRT
Stamp duty and Stamp Duty Reserve Tax are taxes that may apply when buying certain shares in some markets. The United Kingdom is a common example investors encounter.
In the UK, investors usually pay 0.5% when buying shares under common circumstances, often as SDRT for electronic purchases. Special cases can apply, including different treatment for certain depositary receipt or clearance service arrangements.
You may see this listed as:
- Stamp duty
- SDRT
- Transaction tax
- Market tax
Because stamp duty rules depend on country, instrument, and transaction type, always check the relevant government guidance and your broker’s fee schedule.
Exchange and Regulatory Fees
Some trades may include exchange fees, clearing fees, activity fees, or other regulatory pass-through charges. These are more common in products such as options, futures, OTC securities, international stocks, or high-volume trading accounts.
The names vary by broker and product, so the best place to confirm them is your broker’s trade confirmation and fee schedule.
Currency Conversion and FX Costs
If you buy securities in another currency, your broker may convert cash between currencies. The cost may appear as a direct currency conversion fee, a spread, or a less visible exchange-rate markup.
FX costs matter because they can affect both the purchase and sale side of an international investment. They can also affect dividend conversion if the security pays income in a foreign currency.
Margin Interest
Margin interest is charged when you borrow money from your broker against your securities. It may appear monthly on your statement and can vary based on the amount borrowed and the broker’s margin rate.
Margin interest is not the same as a trading commission. It is a financing cost. If you use margin, check your statement for:
- Margin debit balance
- Interest charged
- Margin rate
- Maintenance requirement
- Buying power
Margin can increase both gains and losses, so margin-related charges should be reviewed carefully.
Account Service Fees
Brokers may charge administrative fees for specific account services. These may include:
- Wire transfer fees
- Paper statement fees
- Outgoing account transfer fees
- Inactivity fees
- Returned payment fees
- Foreign security custody fees
- Reorganization or corporate action processing fees
These fees usually appear in the activity section of your monthly statement. If a service fee looks unfamiliar, check your broker’s fee schedule and ask the broker what triggered it.
How Fees Appear on Trade Confirmations and Statements
A trade confirmation usually shows costs directly connected to a specific trade. A monthly statement usually shows both trade-related activity and periodic account-level charges.
| Document | Best For Checking | Examples |
|---|---|---|
| Trade confirmation | Per-trade charges | Commission, SEC fee, exchange fee, stamp duty |
| Monthly statement | Account activity and recurring charges | ADR fee, margin interest, service fees, custody fees |
| Broker fee schedule | Official fee rules | Commissions, transfer fees, foreign trading charges |
| Tax documents | Tax-related reporting | Proceeds, basis, dividends, withholding tax |
Fees can also appear after corporate actions such as mergers, spin-offs, ticker changes, or foreign security events. If a new ticker or unfamiliar line item appears in your account, compare it with your broker’s corporate action notice. For related context, see Ticker Change vs Stock Split.
How to Compare Broker Fee Schedules
Broker fee pages can be difficult to compare because one broker may emphasize $0 commissions while another may list more detail upfront. To compare them more accurately, look at the full fee schedule rather than only the headline price.
Check these areas:
- U.S. stock and ETF commissions
- Options contract fees
- OTC trading fees
- International stock fees
- Currency conversion costs
- ADR and custody fees
- Wire, transfer, and paper statement fees
- Margin rates
- Reorganization or corporate action processing charges
- Regulatory and exchange pass-through fees
The cheapest broker for one type of investor may not be the cheapest for another. It depends on products used, trading frequency, account size, country, and service needs.
How to Review Fees in Your Account
This checklist is not a recommendation to choose any specific broker or trading strategy. It is a recordkeeping method for understanding fee line items.
- Open the trade confirmation — Check commission, regulatory fees, exchange fees, and market taxes.
- Review the monthly statement — Look for account service fees, ADR fees, margin interest, and custody charges.
- Compare with the fee schedule — Confirm the charge matches the broker’s published terms.
- Check product type — Fees may differ for stocks, ETFs, options, bonds, OTC securities, or international trades.
- Look for currency conversion — Foreign trades may include FX costs that are not always obvious.
- Save records — Keep confirmations, statements, and fee explanations for account and tax records.
If the fee appears after a stock split, merger, spin-off, or other corporate event, your statement may also show a related corporate action entry. For help with those records, see What Happens to Fractional Shares During Splits, Mergers, and Spin-Offs?.
Common Fee Misunderstandings
“Commission-free means free trading.”
Not always. Commission-free usually means the broker is not charging its own commission for that specific product. Other costs may still apply, including spreads, regulatory fees, ADR fees, exchange fees, currency conversion costs, or market taxes.
“The SEC fee applies to every trade.”
Investors most commonly see the SEC fee on eligible sell transactions. It is not usually charged the same way on ordinary purchases.
“ADR fees only appear when I trade.”
ADR fees can appear even if you did not trade. They may be charged periodically by the depositary bank and passed through by the broker.
“Small fees do not matter.”
A single small fee may not be important, but repeated charges can add up over time. Reviewing statements helps you understand the total cost of maintaining and trading in the account.
Conclusion
Brokerage fees are easier to understand when you separate them by source. Some are broker charges, some are regulatory or exchange pass-through fees, some are market taxes, and some are product-specific costs such as ADR fees or margin interest.
The most practical habit is to match each fee line item to a trade, holding, service, or corporate action. Use your trade confirmations, monthly statements, broker fee schedule, tax forms, and official government guidance as primary records.
For the most accurate details about a specific charge, rely on your broker’s official fee schedule, trade confirmations, account statements, and relevant regulator or government resources.
Sources and Further Reading
- SEC: Section 31 Fees — Basic Information for Firms — Official SEC explanation of Section 31 fees, covered sales, and rate changes.
- GOV.UK: Tax When You Buy Shares — UK government guidance on stamp duty and SDRT for share purchases.
- FINRA: Your Brokerage Statement — Investor guidance on reading brokerage statements and account activity.
- FINRA: Corporate Actions by Public Companies — Explains corporate actions and how they can affect investors and brokerage records.
- IRS Publication 550 — U.S. tax guidance for investment income, gains, losses, and basis-related topics.
FAQ
Why do I still see fees if my broker advertises commission-free trading?
Commission-free usually refers to the broker’s own commission for certain products. Regulatory fees, exchange fees, ADR fees, currency conversion costs, market taxes, spreads, or product-specific charges may still apply.
What is the SEC fee?
The SEC fee is a U.S. regulatory transaction fee commonly seen on certain securities sales. It may appear as a small line item on eligible sell trade confirmations.
Does the SEC fee apply to purchases?
Investors most commonly see it on eligible sales rather than ordinary purchases. Check your broker’s explanation and the SEC’s current guidance for the exact treatment.
What is an ADR fee?
An ADR fee is a depositary bank fee connected to an American Depositary Receipt. It may be charged periodically or deducted from dividends, depending on the ADR program and broker processing.
Why did an ADR fee appear even though I did not trade?
ADR fees can be periodic administrative or custody-related charges. They may appear even when you did not buy or sell the ADR during that month.
What is stamp duty?
Stamp duty or SDRT is a market tax that may apply when buying certain shares in some countries, such as the United Kingdom. The exact rules depend on the market and transaction type.
Where should I check broker fees?
Start with your broker’s official fee schedule, then compare the charge with your trade confirmation, monthly statement, and account activity history.
Can corporate actions create fees?
Some brokers may charge reorganization or processing fees related to certain corporate actions. Check your broker’s fee schedule and the activity section of your statement.