A forex platform may advertise zero commissions, tight spreads, or free account access. That can make it seem as though the broker provides its services without earning anything from your trades. Of course, every broker needs a sustainable source of revenue.
So, how do forex brokers make money? Depending on the company and account type, income may come from bid-ask spreads, trading commissions, price markups, overnight financing, currency-conversion charges, and other account fees.
Some retail dealers also act as the direct counterparty to customer positions, while others send or hedge orders through external liquidity providers.
Understanding these models matters because a cost does not always appear as a separate charge. It may be built into the price, applied when a trade remains open overnight, or collected through a wider spread.
The wider currency market is enormous, with global over-the-counter forex turnover averaging roughly US$9.6 trillion per day in April 2025. Retail brokers provide access to only one part of this much larger institutional network.
What Does a Forex Broker Actually Do?
A forex broker provides the platform and account through which retail customers can trade currency pairs. It displays prices, accepts orders, calculates margin, tracks open positions, and processes deposits and withdrawals.
The term “broker” is often used broadly, but different firms may perform different roles. Some mainly route or offset client orders with banks and other liquidity providers. Others operate as dealers and become the legal counterparty to customer trades.
In US retail over-the-counter forex, an authorised forex dealer member can act as the counterparty to leveraged off-exchange currency transactions. In that arrangement, when the customer buys, the dealer sells, and when the customer sells, the dealer buys.
That does not automatically mean the broker is dishonest. It does mean you should understand its execution policy, pricing method, and potential conflicts of interest.
Brokers Earn Revenue From the Bid-Ask Spread
The spread is one of the most common ways a forex broker makes money. It is the difference between the bid price and the ask price displayed for a currency pair.
Imagine EUR/USD is quoted at:
Bid: 1.0850
Ask: 1.0852
A customer buys at the higher ask price and would initially need to sell at the lower bid price. The two-pip difference is the spread.
Part of that spread may reflect prices available from the broader market. The broker may then add a markup before showing the final quote to retail customers.
For example, a broker might receive a one-pip spread from its liquidity source but offer customers a spread of 1.5 pips. The additional half-pip can contribute to the broker’s revenue, although its actual profit must also cover technology, staff, regulatory, hedging, and operational expenses.
Spreads are not always fixed. They may widen when liquidity is lower, during important economic announcements, or when markets become unusually volatile.
Some Accounts Charge a Separate Commission
Instead of earning mainly through a wider spread, a broker may offer tighter prices and charge a direct trading commission.
The commission may be calculated per lot, per side, or for the complete opening-and-closing transaction. A broker might charge US$3.50 when a standard lot is opened and another US$3.50 when it is closed.
This structure is common on accounts advertised with “raw” or “institutional-style” spreads. However, a raw spread is not the same as free trading because the commission must still be included in the total cost.
A trader should therefore compare the spread and commission together. An account with a 0.2-pip spread and a large commission may be more expensive than one with a 1-pip spread and no separate commission.
Current NFA rules require covered forex dealers to disclose applicable commissions, other fees, price markups or markdowns, and certain spread costs on a per-trade basis.
Price Markups Can Be Built Into Execution
When a broker sends or offsets a customer position through another market participant, it may receive one price and provide the customer with a slightly different one.
The difference is called a markup when added to the customer’s buying price or a markdown when applied to a selling price. It is another way the broker can earn revenue without displaying a separate commission.
Suppose an external liquidity provider offers EUR/USD at 1.0850. The broker may fill the customer’s buy order at 1.0851. That one-pip difference becomes part of the transaction cost.
A markup is not automatically improper. The important questions are whether it is disclosed, consistently applied, and reasonable compared with the service being provided.
Regulatory rules in the United States specifically recognise price markups and require certain dealers using straight-through processing to disclose them.
Overnight Financing Generates Additional Income
Forex positions held beyond a broker’s daily cut-off time may receive an overnight financing adjustment, often called a swap or rollover charge.
The calculation is connected to the interest-rate difference between the two currencies, the direction of the trade, the size of the position, and the broker’s own pricing policy.
A trader may occasionally receive a positive adjustment, but many retail positions incur a charge. The broker can add its own financing markup rather than passing through the underlying rate without modification.
These small daily amounts can become significant when a leveraged position remains open for weeks or months. A trade that appears profitable from price movement alone may produce a much smaller net gain after financing costs.
In its 2025 review of CFD and rolling spot forex providers, the UK Financial Conduct Authority specifically examined bid–offer spreads, commissions, and overnight funding charges as major elements of the total price paid by retail customers.
Dealing Brokers May Benefit When Customers Lose
In an over-the-counter dealing model, the broker may keep some customer exposure internally instead of immediately offsetting every position with an outside liquidity provider.
When the broker remains the direct counterparty, a customer’s trading loss may become a gain for the dealer, while a customer’s profit creates a liability for it. This model is sometimes informally called internalisation or a “B-book” arrangement.
The situation is more complicated than saying every broker simply trades against its clients. A dealer may match opposing customer positions, hedge only its net exposure, or send selected risk to external counterparties.
For example, one group of customers may be buying EUR/USD while another group is selling it. The broker can offset part of the exposure internally and hedge only the remaining difference.
The CFTC states that retail OTC customers trade against their dealer and that the dealer may make money through customer trading frequency, losses, fees, spreads, or commissions.
This creates a potential conflict of interest, which is why regulation, execution transparency, and independent price comparison are important.
Agency and Straight-Through Processing Models
Some brokers describe their execution as agency, straight-through processing, or STP. In these models, customer orders or the related exposure are automatically offset with external counterparties.
The broker generally aims to earn a predictable spread markup or commission instead of relying mainly on customer losses. This may reduce one type of conflict, but it does not guarantee perfect execution or low costs.
NFA defines straight-through processing as automatically executing an offsetting position with another counterparty before providing the customer’s execution.
Labels such as STP, ECN, agency, or market maker are often used differently across companies. Traders should read the legal execution policy rather than relying only on marketing terms.
A broker may also use a hybrid model. Some trades may be hedged externally, while others are managed internally according to position size, market conditions, or the broker’s risk controls.
Other Fees Can Add to Broker Revenue
Spreads and commissions receive the most attention, but they are not the only potential charges.
A broker may collect currency-conversion fees when the account currency differs from the currency in which a profit, loss, or deposit is calculated. It may also apply withdrawal charges, deposit-processing fees, inactivity fees, premium data subscriptions, or charges for special trading tools.
Guaranteed stop-loss services may carry an additional premium where they are available. Copy-trading, managed-account, and social-trading services may also involve performance or subscription fees.
Not every broker charges all of these costs. The important step is to read the complete fee schedule and account agreement before depositing money.
The CFTC advises customers to examine account-funding and withdrawal requirements, including related charges, before opening an OTC forex account.
Introducing Brokers and Affiliates May Receive Rebates
Forex companies often use introducing brokers, educators, influencers, and affiliate websites to attract new customers.
These partners may receive a fixed payment for each new account, a share of the customer’s spread or commission, or a payment linked to trading volume. In some arrangements, the affiliate continues earning when the referred customer trades more frequently.
This does not mean every referral is unreliable. However, the financial relationship may influence which broker is recommended or how strongly someone encourages frequent trading.
The CFTC warns that salespeople, influencers, and affiliate marketers may be paid according to the number of customers they bring to a platform, while those relationships may not always be obvious to the customer.
Before following a recommendation, check whether the promoter receives compensation and whether the broker is officially authorised.
How to Compare the Real Cost of Two Brokers
Do not choose a broker based on one advertised number. A complete comparison should consider the spread, commission, overnight financing, expected slippage, conversion fees, and withdrawal charges.
Suppose Broker A offers an average spread of 1.2 pips with no commission. Broker B offers a 0.2-pip spread but charges a commission equivalent to 0.8 pips for the complete trade.
Broker B may initially appear much cheaper, but its total direct cost is approximately one pip. The difference between the two brokers is therefore only 0.2 pips before financing and execution quality are considered.
Your trading style also matters. Overnight charges may be relatively unimportant to a day trader who closes every position before the cut-off. They can be a major expense for a swing trader holding positions for several weeks.
Compare costs using the pairs, position sizes, and holding periods you actually expect to trade.
Check Regulation Before Paying Any Broker
A cheap broker is not useful if withdrawals are blocked, prices are manipulated, or customer funds disappear.
Verify the company through the relevant official regulator rather than trusting a logo shown on its website. Also check the exact legal entity because one brand may operate through several companies in different jurisdictions.
Indonesian customers can use Bappebti’s official legal-status portal to search for authorised futures brokers. Bappebti regulations state that firms carrying out futures-broker activities in Indonesia must obtain a business licence.
Be cautious about guaranteed returns, pressure to deposit immediately, crypto-only payments, unexplained fees, and repeated demands for extra money before a withdrawal can be processed.
Forex brokers can make money through bid–ask spreads, commissions, price markups, overnight financing, conversion charges, and other account fees.
Dealers that retain customer exposure may also benefit from client losses, while agency-style firms typically rely more directly on commissions and markups.
No single business model automatically makes a broker good or bad. What matters is whether its costs, execution methods, conflicts, and regulatory status are clearly disclosed.
Before opening an account, calculate the total cost of a realistic trade rather than focusing on a zero-commission headline.
Read the execution policy, compare live spreads, examine overnight charges, and test a small withdrawal. Most importantly, verify the broker directly through an official regulator before sending any money.