What Are You Really Paying Per Lot? ECN Cost Calculation

Formula: total cost = spread + commission

In EUR/USD, 1 standard lot is 100,000 units, and 1 pip at this size equals approximately 10 dollars. So to convert the spread into dollars, simply multiply the spread in pips by 10.

There is a single detail to pay attention to on the commission side, and it can double the cost: whether the commission is one-way (per side) or round-trip (round turn). The expression "$3.50 per lot, per side" means that opening and closing a position costs $7. If you do not look for these two words when reading a broker's commission figure, every comparison you make will be flawed.

There is a third item: swap if you carry a position overnight. If you are day trading, swap does not concern you; if you carry a position for a few days, on some pairs swap can be larger than the total of spread and commission.

Three accounts, one trade: 1 lot EUR/USD open-close

The calculation below is made assuming the spread is at its stated starting value. In reality, 0.0 pip is a baseline value, not an average — under normal session conditions on ECN-type accounts, the EUR/USD spread mostly moves in the range of 0.1-0.5 pip. To keep the comparison honest, we assumed an average of 0.3 pip on ECN accounts.

• –LiteFinance Classic — spread 1.8 pip, no commission. Cost: 1.8 × $10 = $18.
• –LiteFinance ECN — spread ~0.3 pip + commission starting from $0.25 per lot. Cost: $3 + $0.25-0.50 = approximately $3.25-3.50.
• –XM Zero — spread ~0.3 pip + $3.50 commission per lot per side. Cost: $3 + $7 = approximately $10.
• –XM Standard — spread 1.0 pip, no commission. Cost: 1.0 × $10 = $10.

How does cashback change the calculation?

Transaction cost is not a one-way item: a portion of it can come back via the share the broker pays to its partner. On LiteFinance accounts linked via FXPARTNER, the cashback rate goes up to 50% — calculated on commission for ECN accounts, and on spread for Classic and Cent accounts.

In practice, this means that a portion of the ECN cost above is returned. Since the size of the rebate depends on the account type and monthly volume, it would not be accurate to give a single figure; but the direction is clear: the rebate makes the account that is already the cheapest even cheaper, and its effect increases as volume grows.

Important detail: you do not need to close your existing account for cashback. It is sufficient to submit your account number through FXPARTNER's cashback page; the rebate is deposited directly into your trading account by the broker based on your trading volume.

When making the comparison yourself

• –Verify whether the commission is per side or round-trip — this single question can double the cost.
• –Measure the average spread during the hours you trade, not the stated minimum. Recording the spread on a demo account for a week is sufficient.
• –Calculate with the instrument you trade. Pip value and typical spread are completely different for gold, indices, and exotic pairs.
• –Multiply by your monthly volume. A difference of a few dollars per lot can reach an amount comparable to your account size in the annual total.
• –Deduct cashback from the net cost if available — but treat the rebate not as a profit, but as a cost reduction.

Summary

Trading cost is one of the very few variables a trader can control. You cannot predict the direction of the market, but you can know exactly what you pay per lot and reduce it — and in the long run, this makes a bigger difference than many strategy improvements.

For a full breakdown of LiteFinance's account types, commission structure, and regulatory status, you can check our broker review page. This content is for general informational purposes and is not investment advice; leveraged transactions involve high risk.