Understanding Forex Spreads and Commissions

Trading costs can make the difference between a profitable strategy and a losing one. Many traders focus solely on entries and exits, overlooking how spreads and commissions eat into their returns. Understanding these costs is essential for realistic trading expectations and smart broker selection.

This guide explains everything about trading costs—what they are, how they work, and how to minimize their impact on your profits.

What Is a Spread?

Definition

The spread is the difference between the bid price (what buyers will pay) and the ask price (what sellers are asking). It's the most basic cost of trading forex.

Example: EUR/USD Quote: 1.1048 / 1.1050

• Bid (sell price): 1.1048
• Ask (buy price): 1.1050
• Spread: 2 pips

When you buy EUR/USD, you pay 1.1050. To profit, price must rise above 1.1050. The spread is effectively your entry cost.

Why Spreads Exist

Spreads exist because:

• Market makers profit from the difference
• Liquidity providers need compensation
• Brokers need revenue
• It reflects supply/demand dynamics

How Spreads Affect Your Trades

Understanding spread impact:

Entry: When you enter a trade, you're immediately "down" by the spread amount.

Example:

• You buy EUR/USD at 1.1050 (ask)
• Current bid is 1.1048 (what you'd receive if you sold)
• Immediate "loss": 2 pips (the spread)

Exit: When exiting, you sell at the bid (lower) price. The spread affects both entry and exit.

Net Effect: Every round-trip trade costs you one spread. This applies to both market orders and limit orders (though limit orders might get better fills in some cases).

Types of Spreads

Fixed Spreads

The spread remains constant regardless of market conditions.

Characteristics:

• Same spread in quiet and volatile markets
• Published, predictable costs
• Usually wider than average variable spreads
• May widen anyway during extreme conditions

Advantages:

• Easy cost calculation
• No surprises during normal trading
• Good for beginners

Disadvantages:

• Usually more expensive overall
• May widen during news regardless

Variable (Floating) Spreads

The spread changes based on market liquidity and volatility.

Characteristics:

• Tighter during high liquidity (London/NY overlap)
• Wider during low liquidity (Asian session for some pairs)
• Very wide during major news events
• Reflects true market conditions

Advantages:

• Often lower average cost
• Reflects real market liquidity
• Can be very tight in optimal conditions

Disadvantages:

• Unpredictable during news
• May spike suddenly
• Harder to calculate exact costs

Comparing Fixed vs. Variable

Time/Condition	Fixed Spread	Variable Spread
Normal trading	2.0 pips	0.8-1.5 pips
Low liquidity	2.0 pips	2.0-4.0 pips
Major news	2.0-5.0 pips	5.0-20.0 pips
London/NY overlap	2.0 pips	0.5-1.0 pips

For most traders, variable spreads offer better value over time.

What Are Commissions?

Definition

A commission is a fixed fee charged per trade, separate from the spread. It's typically quoted per standard lot ($100,000).

Common Commission Structures:

• $3.50 per lot per side (entry + exit = $7/lot round trip)
• $5.00 per lot per side (entry + exit = $10/lot round trip)
• Per million: $25 per $1,000,000 traded

Commission + Spread Model

Many ECN/STP brokers use this model:

How It Works:

• Very tight spreads (often from 0.0 pips)
• Commission added on top
• Total cost = spread cost + commission

Example:

• EUR/USD spread: 0.2 pips
• Commission: $7 per lot round trip
• 1 lot trade cost: 0.2 pips ($2) + $7 = $9 total

Comparison to Spread-Only: A 1.0 pip spread on 1 lot = $10 cost. So the commission model ($9) is slightly cheaper in this example.

ECN vs. STP vs. Market Maker: How Spread Mechanics Differ

Understanding how your broker processes orders is essential to understanding why your trading costs look the way they do.

Market Maker (MM) Brokers

A Market Maker takes the other side of your trade directly. The broker is your counterparty.

Spread mechanics: The broker sets the bid and ask internally. They profit when you lose, and lose when you profit—a fundamental conflict of interest, though regulated MM brokers are required to provide fair pricing. The spread is the broker's primary revenue source.

Typical spread behavior: Fixed or wide variable spreads. The broker controls the spread and can widen it at any time. During major news, MM brokers may widen spreads significantly and re-quote orders at worse prices.

Who it suits: Beginners with small accounts, or traders who value fixed predictable spreads over raw pricing.

STP (Straight Through Processing) Brokers

STP brokers pass your orders directly to liquidity providers (banks, hedge funds, other institutions) without a dealing desk intervening.

Spread mechanics: The spread you see is the liquidity provider's price plus a markup added by the broker. If the LP is quoting EUR/USD at 0.3 pips, an STP broker might show you 0.8–1.2 pips and keep the difference. No commission is charged separately because the markup is the commission.

Typical spread behavior: Variable, tighter than pure MM but not as tight as raw ECN. Markup size varies significantly between brokers and is rarely disclosed clearly.

Who it suits: Swing and position traders who want better pricing than MM without a per-trade commission structure.

ECN (Electronic Communication Network) Brokers

ECN brokers aggregate prices from multiple liquidity providers and display the best available bid and ask to traders. Orders are matched within the network or routed to external LPs.

Spread mechanics: Raw interbank spreads are passed directly to the trader with no markup. The broker charges a flat commission per lot as their revenue. On EUR/USD during peak London hours, raw ECN spreads can be as low as 0.0–0.1 pips.

Typical spread behavior: Very tight during peak liquidity, but variable—can widen sharply during news. Because the spread is raw, widening during news events is unfiltered.

Who it suits: Scalpers, day traders, and high-frequency traders for whom raw pricing and execution quality are paramount.

Broker Type	Spread Source	Revenue Model	Best For
Market Maker	Internally set	Wide spreads	Beginners, small accounts
STP	LP price + markup	Spread markup	Swing traders
ECN	Raw interbank	Commission per lot	Scalpers, day traders

Spread Widening During News Events: Real Examples

One of the most dangerous phenomena for retail forex traders is the extreme spread widening that occurs during high-impact news releases. Understanding the actual magnitude helps set realistic expectations.

NFP (Non-Farm Payrolls) — First Friday of Each Month

NFP is the single most-watched US economic release. Spreads on EUR/USD typically behave as follows:

• 5 minutes before release: spreads begin to widen, often reaching 3–5 pips
• At the moment of release: spreads can reach 10–30 pips at many retail brokers
• Immediately after release: spreads compress rapidly as liquidity returns, typically back to 1–2 pips within 60–90 seconds

Real consequence: A trader trying to buy EUR/USD at 1.1050 with a 25-pip spread during the release effectively pays 1.1075. Their stop loss, which might have been set 30 pips away from the pre-news price, is nearly hit before the trade even begins.

FOMC Interest Rate Decisions

Federal Reserve rate decisions occur eight times per year. EUR/USD spreads during a contested rate decision (where markets are genuinely uncertain) can reach 20–50 pips at the moment of release, particularly if the decision differs from consensus expectations.

Swiss National Bank Flash Crash (January 2015)

The most extreme spread-widening event in recent history. When the SNB unexpectedly removed the EUR/CHF floor, spreads on CHF pairs reached hundreds of pips within milliseconds. Some brokers temporarily suspended pricing altogether. Many retail traders lost amounts far exceeding their account balance because stop losses could not be executed anywhere near their requested levels.

Lesson: Spreads during extreme events are not theoretical—they represent the actual cost you will pay if you are in a position.

Managing Spread Risk Around News

• Check the economic calendar before entering any position and note the time of the next high-impact release
• Either close positions before major releases or ensure your stop is wide enough to survive normal spread widening
• Use limit orders rather than market orders where possible to avoid being filled at a widened spread price
• Never scalp in the 15 minutes surrounding a high-impact release

How to Calculate Total Trading Cost Per Lot

Many traders compare brokers by looking only at the advertised spread. A complete cost analysis requires accounting for all components.

Full Cost Formula (Per Standard Lot)

For spread-only accounts:

Total Cost = Spread in Pips × Pip Value ($10 for standard lot)

Example: EUR/USD with 1.5-pip spread = 1.5 × $10 = $15 per round trip

For ECN accounts with commission:

Total Cost = (Spread in Pips × Pip Value) + Commission (round trip)

Example: EUR/USD with 0.2-pip spread + $7 commission = ($2) + $7 = $9 per round trip

For positions held overnight, add swap:

Total Cost = Spread Cost + Commission + (Daily Swap × Number of Nights Held)

Example: EUR/USD long position held 3 nights with -$5/night swap = $9 + $15 = $24 per round trip

Annual Cost of Trading

A day trader making 5 round-trip trades per day, 220 days per year, with a $15 average cost per lot:

5 trades × $15 × 220 days = $16,500 per year in trading costs on 1-lot positions

This figure makes the importance of low-cost execution viscerally clear.

Markup on Spreads by Broker Tier

Retail brokers add a markup above the raw interbank spread that they receive from their liquidity providers. This markup is rarely published explicitly.

How to Estimate Broker Markup

Compare the spread offered by a retail broker against the raw interbank rate, which is typically 0.1–0.3 pips on EUR/USD during peak London hours. The difference is the markup.

Broker Tier	Typical EUR/USD Spread	Approximate Markup
Raw ECN (with commission)	0.0–0.2 pips	0 (commission instead)
Institutional/Prime	0.1–0.3 pips	0–0.1 pips
Tier-1 retail (STP)	0.6–1.2 pips	0.3–0.9 pips
Standard retail (MM/STP)	1.0–2.0 pips	0.7–1.7 pips
High-spread retail	2.0–4.0 pips	1.7–3.7 pips

Volume-based discounts: Some brokers offer reduced markups or rebates to high-volume traders. If you are consistently trading more than 20–30 lots per month, it is worth contacting your broker to negotiate pricing or switching to a broker with an explicit volume rebate program.

Low-Spread Broker Comparison

When evaluating brokers on cost, always compare the same account type, the same instrument, and the same time of day. Published "average spreads" can be misleading if measured only during peak liquidity hours.

Broker	Account Type	EUR/USD Typical Spread	Commission (RT)	Effective Total
IC Markets	Raw Spread	0.0–0.1 pips	$7.00	0.7–0.8 pips equivalent
FP Markets	Raw	0.0–0.1 pips	$6.00	0.6–0.7 pips equivalent
Exness	Raw Spread	0.0–0.1 pips	$3.50	0.35–0.45 pips equivalent

Note: Spreads fluctuate. These figures represent typical conditions during London session hours and should be verified directly with each broker.

The key insight from this table: ECN-style accounts with commissions almost always provide lower total effective costs than no-commission accounts with wider spreads, particularly for active traders.

Best Pairs for Low-Spread Trading

Not all currency pairs offer tight spreads. Spread costs vary dramatically by pair:

Major Pairs (Tightest Spreads)

• EUR/USD: The tightest spread in the forex market. 0.0–0.5 pips raw, 0.6–1.5 pips retail
• USD/JPY: Typically 0.0–0.8 pips raw; highly liquid during Tokyo and London sessions
• GBP/USD: Slightly wider than EUR/USD due to more volatility; 0.5–1.5 pips raw
• USD/CHF: 0.5–1.5 pips; tighter during European sessions
• AUD/USD: 0.5–1.0 pips raw; very liquid during Sydney and London overlap

Minor Pairs (Medium Spreads)

• EUR/GBP: 0.8–2.0 pips
• EUR/JPY: 1.0–2.0 pips
• GBP/JPY: 1.5–3.0 pips
• AUD/JPY: 1.5–3.0 pips

Exotic Pairs (Widest Spreads)

• USD/ZAR: 50-150 pips
• USD/TRY: 30-100 pips
• EUR/PLN: 20-50 pips

Practical rule for cost-conscious traders: If your strategy can be applied to EUR/USD, USD/JPY, or GBP/USD, there is rarely a reason to trade exotic pairs. The spread cost alone on exotics can consume a multiple of the entire profit target on a typical trade.

Calculating True Trading Costs

For Spread-Only Accounts

Formula: Cost = Spread (in pips) × Pip Value × Number of Lots

Example:

• EUR/USD, 1.5 pip spread
• Trading 2 standard lots
• Pip value: $10/pip
• Cost: 1.5 × $10 × 2 = $30

For Commission + Spread Accounts

Formula: Cost = (Spread × Pip Value × Lots) + Commission

Example:

• EUR/USD, 0.2 pip spread
• Trading 2 standard lots
• Commission: $3.50 per lot per side
• Spread cost: 0.2 × $10 × 2 = $4
• Commission cost: $3.50 × 2 lots × 2 (entry + exit) = $14
• Total cost: $4 + $14 = $18

Effective Spread Calculation

Convert commission to spread equivalent for easy comparison:

Formula: Effective Spread = Actual Spread + (Commission / Trade Value × 10,000)

Example:

• Spread: 0.2 pips
• Commission: $7 per lot round trip
• 1 lot = $100,000
• Commission as pips: $7 / $100,000 × 10,000 = 0.7 pips
• Effective spread: 0.2 + 0.7 = 0.9 pips

The Impact of Costs on Different Trading Styles

Scalping

High frequency, small targets.

Cost Impact:

• Trading costs critical (many trades)
• A 2-pip spread on a 5-pip target = 40% of profit
• Scalpers need the tightest spreads possible
• Commission models often better

Recommendation: Use ECN brokers with raw spreads and commissions. Every 0.1 pip saved matters.

Day Trading

Multiple trades per day, medium targets.

Cost Impact:

• Costs significant but manageable
• A 1.5-pip cost on 30-pip targets = 5% of profit
• Need competitive spreads

Recommendation: Balance spread costs with execution quality. Low spreads are important but not at the expense of everything else.

Swing Trading

Trades held days to weeks, larger targets.

Cost Impact:

• Costs matter less proportionally
• 2-pip cost on 200-pip target = 1% of profit
• Focus more on execution and reliability

Recommendation: Spreads matter less than broker reliability, regulation, and swap rates (overnight fees).

Position Trading

Trades held for weeks to months.

Cost Impact:

• Entry spread nearly negligible
• Swap rates become much more important
• Broker stability crucial

Recommendation: Prioritize positive swap rates (or minimal negative swaps) and broker security.

How to Minimize Trading Costs

Choose the Right Broker

Compare Total Costs:

• Get spread data from multiple brokers
• Calculate effective spreads with commissions
• Check spreads during different market conditions

Consider Account Type:

• Standard accounts: Spread only
• ECN/Raw accounts: Spread + commission (often cheaper total)
• VIP accounts: Reduced costs for larger deposits

Trade at Optimal Times

Best Times for Tight Spreads:

• Major session overlaps
• Normal trading hours (avoid extremes)
• When liquidity is high

Avoid:

• News releases (spreads spike)
• Low-liquidity hours
• Weekend rollovers

Choose Liquid Pairs

Maximize Efficiency:

• Trade major pairs for tightest spreads
• Avoid exotics unless you have specific edge
• Consider spread impact on your targets

Use Limit Orders When Possible

Potential Benefits:

• May get filled at better prices
• Some brokers offer reduced spreads on limits
• Avoid immediate spread cost

Scale Position Appropriately

Larger Positions:

• Cost per lot drops with some brokers (volume rebates)
• Negotiate better rates with high volume

Hidden Costs to Watch For

Swap/Rollover Fees

Charges for holding positions overnight. Can add up significantly for swing traders.

Deposit/Withdrawal Fees

Some brokers charge for funding or withdrawing.

Inactivity Fees

Monthly charges if you don't trade for a period.

Currency Conversion

If your account currency differs from your deposit currency.

Data Fees

Some brokers charge for real-time data or premium features.

Slippage

Not a direct fee, but executions at worse prices cost money.

Conclusion

Trading costs are a fundamental part of forex trading that every trader must understand. Whether expressed as spreads, commissions, or both, these costs directly affect your profitability.

Key Takeaways:

• Understand your broker's cost structure completely
• Calculate effective spreads for accurate comparison
• Match your broker choice to your trading style
• Trade at optimal times for tight spreads
• Focus more on costs if you're a high-frequency trader
• Don't forget hidden costs like swaps and fees

The goal isn't necessarily to find the absolute cheapest broker—it's to find the best value considering all factors: costs, regulation, platform, execution, and support.

Keep trading costs in perspective. They matter, but they're just one factor in trading success. A low-cost broker with poor execution or questionable regulation isn't a bargain. Find the right balance for your needs, and let competitive pricing be one of many criteria in your broker selection.

Every pip saved in trading costs is a pip added to your bottom line. Make sure you're keeping as much of your profits as possible.

Frequently Asked Questions

Q: What is the average EUR/USD spread I should expect from a decent broker?

A: For a standard retail account (no commission), a reasonable EUR/USD spread during normal London session hours is 0.8–1.5 pips. For an ECN/raw account with commission, the raw spread should be below 0.3 pips with a commission of $6–$8 per round-trip lot, giving an effective total of 0.9–1.1 pips. Anything significantly above 2.0 pips on EUR/USD during normal market hours is above average and worth investigating.

Q: Is it better to trade a no-commission account or an ECN account with commission?

A: For most active traders—particularly anyone making more than 2–3 round trips per week—an ECN account with commission is typically cheaper in total effective cost than a no-commission spread account. Run the numbers using the effective spread formula. The only case where a no-commission account is preferable is if you trade very infrequently and the fixed commission per trade creates a disproportionately high cost relative to your position size.

Q: Do spreads affect pending limit orders the same way they affect market orders?

A: Yes. If you place a buy limit order at 1.1050, you will be filled at 1.1050, but the ask price at the moment of fill will be higher by the spread amount. If you immediately close the position, you will exit at the bid—so the spread cost applies to limit orders as well. The difference with limit orders is that you control your exact entry price rather than accepting whatever the market offers at the moment you click.

Q: How much does a 1-pip spread difference actually cost me per year?

A: It depends entirely on your trading volume. For a trader placing 3 standard-lot round trips per day, 5 days per week, 48 weeks per year: 3 lots × 5 days × 48 weeks = 720 lots per year. A 1-pip difference in spread costs $10 per lot, so 720 × $10 = $7,200 per year. This calculation demonstrates why switching from a 1.5-pip spread broker to a 0.5-pip effective spread broker—even with the commission—has a meaningful impact on annual profitability.

Q: Can I negotiate spreads or commissions with my broker?

A: Yes, for higher-volume traders. Most retail brokers have a formal VIP or professional account tier that unlocks reduced commissions or rebates. The threshold is typically 20–50 standard lots per month. Below that volume, standard pricing applies. If you are close to or above that threshold, contact your broker's account management team directly—many will negotiate before you formally reach the stated tier, particularly if you indicate you are comparing alternatives.