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Master IB: Master Introducing Broker

Also known as: Master IB, Head IB, Regional IB, IB Aggregator

What is Master IB: Master Introducing Broker?

A Master Introducing Broker (Master IB) sits at the top of a multi-tier IB hierarchy. Instead of referring traders directly, a Master IB recruits and supports Sub-IBs, then earns a share of the trading volume produced by every client those Sub-IBs bring in. It is one step below running a white-label brokerage.

The Master IB acts as a wholesaler of rebates. The broker gives the Master IB a high base rate — say $8 per lot — and the Master IB passes part of that down to Sub-IBs (for example $6 per lot), keeping the $2 difference as an override on all their volume. The more productive the Sub-IB network, the larger the Master IB's aggregate spread.

Key takeaways
  • Earns an override on Sub-IBs' client volume, not direct referrals.
  • Acts as a rebate wholesaler between broker and Sub-IBs.
  • Highest IB tier short of a white-label brokerage.
  • Pass-down rate is the key lever for growth vs margin.
  • Uncompetitive sub-rebates push Sub-IBs to sign direct.

For example, a Master IB with 30 Sub-IBs whose combined clients trade 5,000 lots per month, earning a $2-per-lot override, generates 5,000 × $2 = $10,000 monthly — without directly acquiring or servicing any of those end clients.

This tier is effectively a regional or network representative of the broker. It rewards recruiting strong Sub-IBs, offering them competitive sub-rebates, and keeping them loyal, because the Master IB's entire income depends on the downline continuing to trade through them rather than signing directly with the broker.

How it works

The broker grants the Master IB a top-tier rebate rate and a hierarchy in the IB CRM that lets them enroll Sub-IBs beneath their code. Every client a Sub-IB refers is attributed up the chain, so each trade credits the Sub-IB their rate and the Master IB their override on the same volume.

The Master IB decides how much of their base rate to pass down. A wider pass-down attracts and retains Sub-IBs but shrinks the per-lot override; a narrower one boosts margin but risks Sub-IBs defecting to the broker directly. Settlement follows the broker's schedule, with the Master IB seeing consolidated downline volume in their portal.

  1. Negotiate a master rebate deal

    Secure a high top-tier per-lot rate and multi-level rights from the broker to build a Sub-IB network.

  2. Recruit Sub-IBs

    Onboard local IBs and networkers, offering them competitive sub-rebates and support under your code.

  3. Set the pass-down

    Decide how much of your base rate to give Sub-IBs versus keep as your override on their volume.

  4. Sub-IBs bring clients

    Sub-IB clients trade; volume is attributed to both the Sub-IB and the Master IB in the CRM.

  5. Overrides settle

    Each trade pays the Sub-IB their rate and credits the Master IB the difference as an override rebate.

Why it matters for partnership: A Master IB scales income by aggregating many Sub-IBs' volume into override rebates, diversifying away from any single client base. It is the highest IB tier short of a white label, turning network-building into largely passive per-lot earnings.

Formula
Master IB Earnings = Total Sub-IB Client Lots × (Master Base Rate − Sub-IB Pass-Down Rate)
Real World Example

A Master IB with a broker such as Vantage or Exness holds a $8-per-lot base rate and passes $6 down to 30 Sub-IBs. Their combined clients trade 5,000 lots in a month, so the Master IB keeps a $2 override on each — 5,000 × $2 = $10,000 — earned entirely from the downline's volume rather than from clients they onboarded themselves.

Master IB vs Sub-IB vs White Label
Aspect Master IB Sub-IB White Label
Recruits Sub-IBs Direct traders Its own IBs/clients
Earns from Override on downline volume Own clients' lot rebates Full spread/commission
Setup burden Moderate — network + CRM Low — sign up and refer High — license, tech, liability

Pro Tip

Host local events and award ceremonies to motivate Sub-IBs and build a competitive culture that lifts their trading volumes — and therefore your overrides.

Common Pitfalls

Offering uncompetitive sub-rebate rates pushes your best Sub-IBs to bypass you and register directly with the broker, collapsing the volume your override depends on.

FAQ

What is the difference between a Master IB and a Sub-IB?

A Sub-IB refers traders directly and earns rebates on their volume. A Master IB sits above Sub-IBs, earning an override on all the Sub-IBs' client volume rather than acquiring clients personally.

How does a Master IB earn money?

The broker pays the Master IB a high base per-lot rate; the Master IB passes part down to Sub-IBs and keeps the difference as an override on the network's total traded volume.

Is a Master IB the same as a white label?

No. A white label licenses the broker's technology under its own brand and takes on far more cost and liability. A Master IB is a partnership tier that earns overrides without holding the client relationship or the tech stack.

How much can a Master IB earn per lot?

The override is the gap between the master base rate and the Sub-IB pass-down, often around $1–$3 per lot on forex majors. It depends entirely on the negotiated rates and network volume.

How do I stop Sub-IBs from going direct to the broker?

Offer competitive sub-rebates, provide real support and tools, and add value the broker won't — training, local presence, faster settlement. Loyalty follows genuine benefit, not lock-in alone.

Do I need a license to be a Master IB?

Requirements vary by jurisdiction; some regulators require introducers to be registered or authorized. Check local rules and your broker's compliance requirements before recruiting.

Sources & further reading
Reviewed by the Revenika Editorial Desk Last updated

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