Per-Lot Rebate Math: What You Can Pay Back and Still Profit
A step-by-step framework for calculating how much rebate you can pay traders per lot while keeping a sustainable margin, with a worked three-tier example.
Also known as: Notional Value, Notional Turnover, Contract Value
Notional Volume is the total underlying market value controlled by a leveraged position, not the margin the trader posts to open it. One standard lot of EUR/USD carries a notional value of €100,000 even though the client may have deposited only a few hundred dollars of margin to control it.
The distinction exists because leverage lets a small amount of capital command a much larger position. Margin is what the client risks; notional is what the trade actually represents in the market. Commission and rebate structures can be tied to either, and the two produce very different payout math.
Many brokers — especially in crypto, indices, and equities CFDs — calculate IB rebates as a percentage of notional turnover rather than a flat fee per lot. If your deal pays 0.002% of notional and a client trades $5,000,000 of notional Bitcoin in a month, your rebate is $100 on that flow, independent of how many "lots" the platform reports.
Because lot definitions vary by asset while notional is a raw dollar figure, notional volume gives partners a consistent way to compare earnings across instrument classes. A single Nasdaq-100 CFD and a single gold CFD have very different notional values, so per-lot thinking misleads where notional-based thinking clarifies.
Notional value equals contract size times the number of contracts times the current price of the underlying (for FX it is the base-currency amount per lot). The broker's system logs the notional turnover a client generates, and a percentage-of-notional rebate applies your agreed basis-point figure to that total. A 0.001% (0.1 bps) rate on $10,000,000 of monthly notional turnover yields $100.
The payout swings hard with asset choice because notional per lot varies enormously: one lot of EUR/USD is ~$108,000, one lot of US30 (Dow) can be over $400,000, and crypto CFDs can be larger still. Under a notional-based deal, steering marketing toward high-notional instruments raises rebate per trade without any change to trade count — but you must confirm the broker actually pays on notional, not per standard lot.
Check whether your deal pays per standard lot or as a percentage of notional turnover — they are not interchangeable.
Ask the broker for the notional value per lot on the instruments your clients trade most.
Multiply expected lots by notional per lot across each instrument to get total notional turnover.
Multiply total notional by your basis-point rate to project the rebate.
Why it matters for partnership: When your rebate is a percentage of notional, high-value instruments (Bitcoin, major indices, gold) pay far more per trade than a micro FX lot. Know your deal's basis so you can project earnings by the asset mix your clients actually trade.
An IB on a crypto CFD broker like PrimeXBT is paid 0.0015% of notional turnover. A client trades 40 lots of BTC/USD in a month; with each lot representing roughly $65,000 of notional at prevailing prices, monthly notional turnover is about $2,600,000. The IB's rebate on that single client is around $39, and the figure scales linearly as the client's notional turnover grows.
| Basis | How it pays | Best-suited flow |
|---|---|---|
| Per standard lot | Fixed $ amount per lot traded | High-frequency micro-FX scalpers |
| Percentage of notional | Basis points of contract value | Large indices, gold, crypto positions |
Before choosing a notional-based deal, ask the broker for the exact notional value per lot on your top instruments — a Dow or Bitcoin lot can be four times the notional of a EUR/USD lot.
Comparing a per-lot offer against a percentage-of-notional offer as if the units were the same, then mis-projecting earnings by an order of magnitude when the real instrument mix is priced in.
No. Notional is the full market value the position controls; margin is the small deposit the trader posts to open it. Leverage is the ratio between them.
Multiply the contract size by the number of contracts by the underlying price. For FX, one standard lot equals 100,000 units of the base currency.
Those instruments have large, variable contract values, so a percentage of notional gives a fairer, more consistent rebate than a flat per-lot fee.
Under a notional-based deal, yes — higher notional per trade raises the rebate. Under a per-lot deal, instrument size makes no difference to the fee.
Convert both to expected dollars using your clients' real instrument mix and turnover. Never compare the raw rates directly — the units differ.
Your broker's IB back office and MT5/cTrader reporting expose notional or contract value per trade so you can reconcile rebate calculations.
A step-by-step framework for calculating how much rebate you can pay traders per lot while keeping a sustainable margin, with a worked three-tier example.
A practical framework for testing whether a broker's rebate reporting is genuinely trade-level and real-time, before you build a rebate business on top of it.
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