Most brokers only think hard about mortgage broker commission twice: when they sign their first aggregator agreement, and when they're annoyed enough about their take-home pay to finally read the fine print. Everything in between gets ignored.
That's the mistake. Your commission structure isn't just how you get paid, it's one of the bigger business decisions you'll make as a broker, whether you're choosing an aggregator for the first time, weighing up a renegotiation, or setting the split for brokers you're bringing onto your own team. This isn't another explainer on how upfront and trail commission work, we've already covered how broker income is structured in detail. This is what to actually weigh up before you commit to a deal, or stay in one out of habit.
Sign an aggregator agreement once and it's easy to treat it as fixed. It isn't. Your split, how it's tiered, what happens to trail if you leave, and what's bundled into it versus charged separately all shape what you actually take home, long before market conditions or loan volume come into it.
Most brokers revisit their agreement for the first time when something's already gone wrong, a trail clawback they didn't see coming, a fee they didn't budget for, an exit that cost more than expected. The better habit is reviewing it on a schedule: at renewal, whenever your production shifts a tier, and any time you're weighing up a move to a new aggregator. That's a business habit, not a compliance chore.
Before you put your name on an aggregator agreement, or push back on the one you're already under, get clear answers on these first:
Most of this isn't written down anywhere easy to compare between aggregators, and most brokers simply don't ask. That's exactly why two brokers writing similar volume can end up with genuinely different mortgage broker fees eaten out of their income.
A bigger percentage isn't automatically a better deal. An aggregator offering a higher split with steeper technology, compliance or marketing fees bundled in can net you less than a lower split sitting on a leaner cost stack. The number that matters is your real mortgage broker cost after every fee comes off, not the figure printed at the top of the agreement.
This is where most brokers fall down, not because the maths is hard, but because they never actually sit down and do it. Tracking your production, conversion and income trends over a few months gives you evidence instead of a guess, which is exactly what The Broker Journal is built for. Brokers using it aren't just logging numbers for the sake of it, they're building the case they need before a renewal conversation or a decision to switch.
Loyalty to an aggregator is fine until it's costing you. A few situations are worth a serious look:
None of these automatically mean you should switch. They mean you've earned the right to ask the question properly, with numbers in front of you instead of a gut feeling.
If you're scaling past writing loans yourself and bringing brokers or loan writers on board, commission structure becomes something you're setting, not just negotiating. The instinct is to match whatever split is standard in the market. That's a starting point, not a strategy.
The split you offer has to hold up next to what you're actually providing, mentoring, lead flow, admin support, a system that lets a newer broker write clean applications faster than they could on their own. Undercut that and you'll attract people you can't retain. Overpay for what you're actually delivering and you'll erode the margin meant to fund your own business's growth. Getting this right is part of running a brokerage as a business, not just a bigger version of a single desk.
Here's the part most brokers miss when they're fixated on their split: commission structure decides the ceiling on what's possible, not what you actually earn. Two brokers on the exact same agreement can end up in completely different positions two years later, because one built consistent lead flow, repeatable systems and a business that runs without them chasing every file personally, and the other didn't.
This is the gap Ruan Burger built the Success & Broker coaching program to close. As BBA 2024's Industry Thought Leader of the Year and an MFAA 2024 National Winner, Ruan has worked with brokers who had strong technical skills and a perfectly fine commission deal, and were still plateaued, because the split was never actually the problem. The business behind it was.
There's no fixed figure. What a broker makes depends on the split set out in their aggregator agreement, their production and loan volume, and how much of their gross commission survives after aggregator fees, compliance costs and other overheads. Two brokers writing similar volume can end up with different take-home pay purely because of the terms each is operating under.
Compare it against what similar-production brokers are getting, not just the headline percentage. Check whether your split is fixed or tiered, what's bundled into it (CRM, compliance support, PI cover), and what you'd keep if you left. A split can look competitive on paper and still be a poor deal once those extras are factored in.
The best trigger points are at renewal, whenever your production shifts into a new tier, or any time you're seriously weighing a move to another aggregator. Waiting until something's already gone wrong, like an unexpected trail clawback, means you're negotiating from a weaker position than if you'd reviewed the agreement on a schedule.
Mortgage broker commission isn't something you sign once and forget. It's a business lever, in how you evaluate an aggregator, in what you push back on at renewal, and in how you structure pay for a team you're building underneath you. Brokers who treat it that way end up with agreements that actually reflect what they're bringing to the table. The ones who don't usually find out the hard way, at renewal, at exit, or when a broker they hired walks because the split didn't hold up.
If you've checked your commission structure and it's solid, but growth still isn't showing up the way you expected, that's usually not a split problem. That's exactly what we work through inside our mortgage broker coaching program. Curious what's actually holding your income back? Let's talk.
