What Is a Lot-Based Commission in Trading?
A lot-based commission is a fee charged by a broker for facilitating a trade, calculated according to the number of lots traded rather than as a fixed flat rate. Instead of widening the spread to recover costs, brokers using this model charge a transparent per-lot fee on each trade — typically applied at open and again at close.
How Lot-Based Commission Is Calculated
The commission is applied per lot, per side. A broker might charge USD 3.50 per lot per side, meaning a round-turn trade (open + close) on one standard lot costs USD 7.00 in commission. Larger lot sizes increase the commission proportionally.
| Lot Size |
Commission per Side |
Total Round-Turn Cost |
| 1 Standard Lot (100,000 units) |
USD 3.50 |
USD 7.00 |
| 0.5 Lots (50,000 units) |
USD 1.75 |
USD 3.50 |
| 0.1 Lots / 1 Mini Lot (10,000 units) |
USD 0.35 |
USD 0.70 |
Lot-Based Commission vs. Spread-Only Pricing
| Feature |
Lot-Based Commission |
Spread-Only Pricing |
| How broker earns |
Per-lot fee on each trade |
Mark-up embedded in spread |
| Transparency |
High — cost is explicit |
Lower — cost hidden in spread |
| Spreads offered |
Typically raw or near-raw |
Typically wider |
| Better for |
High-frequency or larger volume traders |
Infrequent traders |
Who Benefits from a Lot-Based Commission Model?
Active traders who place many transactions per day often prefer lot-based commission accounts because the tight raw spreads reduce total trading costs at scale. A scalper executing dozens of trades daily may pay significantly less in total costs under a per-lot commission structure than under a spread-only model where each pip of markup compounds across high volume.
Lot-Based Commission: What to Keep in Mind
As a precaution, lot-based commissions add a fixed cost to every trade you open and close — regardless of how the trade performs. For lower-frequency traders or those trading very small lot sizes, a spread-only account may result in lower overall costs. Always calculate your expected commission cost as part of your break-even analysis before choosing an account type.
Choose the Account Model That Works for You
VT Markets offers multiple account types designed for different trading styles. Create your live VT Markets account or log in now to compare commission and spread-based options and choose the structure that fits your strategy.
Risk Warning:Trading CFDs involves significant risk and may not be suitable for all investors. Losses can exceed your initial deposit. Please ensure you fully understand the risks involved before trading.
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