Beginner GuidesUnderstanding Trading Fees
Fees & Costs

Understanding Trading Fees and Commissions

Learn about different types of trading fees, how they impact your returns, and how to minimize costs.

6 min read Updated March 2025 Jonathan Stewart

Why Fees Matter More Than You Think

Trading fees might seem small in isolation — a dollar here, 65 cents there — but over time they compound into a significant drag on your portfolio performance. A trader making 100 trades per year at $0.65 per options contract pays $65 in fees alone, before accounting for spreads and other costs.

Understanding exactly what you're paying — and why — is one of the most important skills a new trader can develop. The good news: the industry has become far more transparent and competitive, with most major brokers now offering zero-commission stock and ETF trades.

Did You Know? A 1% annual fee difference on a $10,000 portfolio can cost you over $3,000 in lost returns over 20 years due to compounding.

Types of Trading Fees

There are several categories of fees you'll encounter as a trader:

Trade Commissions

Charged per trade when buying or selling stocks, ETFs, or options. Most brokers now offer $0 for stocks/ETFs.

Expense Ratios

Annual fee charged by mutual funds and ETFs as a percentage of assets. Ranges from 0.03% to over 1%.

Margin Interest

Interest charged on borrowed funds when trading on margin. Typically 5%–14% annually.

Inactivity Fees

Some brokers charge if you don't trade for a set period. Most major brokers have eliminated this.

Transfer Fees

Fees for moving money in or out of your account via wire transfer. Usually $0–$25.

Regulatory Fees

Small SEC and FINRA fees passed on to traders. Typically fractions of a cent per share.

Commissions Explained

The commission revolution began in 2019 when major brokers like Charles Schwab, Fidelity, and TD Ameritrade dropped stock commissions to zero. Today, most retail brokers offer commission-free stock and ETF trading.

However, options trading still carries per-contract fees at most brokers. Here's how the math works:

Asset TypeTypical CommissionExample Cost
Stocks & ETFs$0 at most brokers$0 for 100 shares of AAPL
Options$0–$0.65 per contract$6.50 for 10 contracts at $0.65
Mutual Funds$0–$49.95 per tradeVaries by fund and broker
Futures$0.25–$2.25 per contract$2.25 per contract at IBKR
Crypto0%–2% per trade$20 on a $1,000 trade at 2%

Hidden Fees to Watch Out For

Even "commission-free" brokers make money somehow. Here are the less obvious costs to be aware of:

Payment for Order Flow (PFOF)

Brokers like Robinhood route your orders to market makers who pay for the privilege. This can result in slightly worse execution prices — a hidden cost that's hard to see but real.

Bid-Ask Spread

The difference between the buy and sell price of a security. On thinly traded stocks or options, this spread can be wide and represents a real cost per trade.

Foreign Transaction Fees

Trading international stocks or ADRs may incur additional fees. Always check before trading foreign securities.

Account Transfer Fees (ACAT)

Moving your account to another broker can cost $50–$125. Some brokers will reimburse this fee to attract new customers.

How to Minimize Trading Costs

01

Choose a zero-commission broker

For stock and ETF trading, stick to brokers like Fidelity, Schwab, or Robinhood that charge $0 per trade.

02

Use limit orders

Limit orders give you control over your execution price and help you avoid unfavorable fills caused by wide bid-ask spreads.

03

Trade liquid securities

Stocks and ETFs with high trading volume have tighter bid-ask spreads, reducing your implicit trading costs.

04

Avoid frequent trading

Every trade has a cost. A long-term buy-and-hold strategy naturally minimizes fee drag on your portfolio.

05

Compare options fees

If you trade options, even $0.10 per contract difference matters at scale. Compare brokers carefully.

Fee Comparison by Broker

BrokerStocks/ETFsOptionsAccount Min.
Fidelity$0$0.65/contract$0
Charles Schwab$0$0.65/contract$0
Interactive Brokers$0$0–$0.65/contract$0
Robinhood$0$0/contract$0
Webull$0$0/contract$0

Compare Broker Fees Side by Side

Use our comparison tool to find the lowest-cost broker for your trading style.

Compare Brokers Now
NEXT IN LEARNING PATH
Asset Types 10 min read

Choosing Between Stocks, ETFs, and Options

Understand the differences between stocks, ETFs, and options to choose the right instruments for your goals.

Read Next