TL;DR — An IB (introducing broker) rebate is the commission a broker pays a partner for referring clients. Cashback is when most of that IB rebate is passed on to you, the trader. They are not competing products — cashback is powered by the IB rebate. The practical question is simply how much of the IB commission actually reaches you, and how transparently.

What is an introducing broker (IB)?

An introducing broker is a partner that refers traders to a brokerage. In return, the broker pays the IB a commission for the volume those referred traders generate. This is a completely standard, above-board part of how the retail forex industry works — brokers would rather pay partners to bring clients than spend the same money on advertising.

How the commission flows

Follow the money and the relationship becomes obvious:

  • You trade. The broker earns the spread or commission.
  • The broker pays an IB rebate to the partner who introduced you.
  • If that partner runs a cashback model, it keeps a small share to run the service and returns the majority to you.

So “IB rebate” is the wholesale commission, and “cashback” is the retail version that lands in your account. For a fuller walk-through of that chain, see what forex cashback is and how it works.

Which is better for a trader?

If you are a trader, cashback is what you want — it is the IB rebate delivered to you. The traditional model, where an IB pockets the entire commission and the trader sees none of it, is strictly worse for you. The trader-cashback model exists precisely to fix that: instead of the introducing broker keeping 100% of the rebate, you receive the majority of it.

The questions worth asking a cashback provider are therefore:

  • How much of the IB commission do I actually get? A transparent provider states the per-lot rate you receive up front — see the rate board.
  • How and when is it paid? Look for regular, automatic payouts. Expaid reconciles volume and pays weekly to your account.
  • Are my trading conditions affected? They should not be. Cashback sits on top of your normal spreads and execution.

Can you be your own IB?

Some experienced traders sign up as a broker’s IB directly to capture the rebate on their own trading. That can work, but it usually means dealing with the broker’s partner back-office, manual reporting, and no help if something goes wrong. A cashback service does that heavy lifting for you, aggregates rates across multiple brokers, and pays you on a predictable schedule — which is why most traders prefer it to running their own IB.

The bottom line

IB rebate and cashback are the same money at different points in the pipe. What matters is how much of it reaches you. Compare live per-lot rates on the broker comparison pages, estimate your earnings with the rebate calculator, and if you already trade without any rebate, the switch & save calculator shows what you are leaving on the table.