What your RCTI data is telling you (and what you're missing)

Every month the RCTI lands. You scan the total, check it against what you expected, maybe glance at the clawback line, and move on. The file did its job. It confirmed the aggregator paid you the right amount and the GST is accounted for. That is what a recipient created tax invoice is built to do.

But the same file is also the most complete record you have of how your business actually behaves. Every settlement, every broker, every lender, every dollar of upfront and trail, every clawback, going back years. Read as a payment summary, it tells you what you earned last month. Read as a business, it tells you where your risk is concentrated, which brokers are quietly winding down and what your trail book is really worth.

That gap matters more in 2026 than it used to. The broker channel now writes a record 81% of all new home loans, according to MFAA data for the March 2026 quarter, and ASIC has shifted from chasing individual complaints to monitoring networks with data, seeking standardised information from the major aggregators on things like lender concentration and lodgement patterns. The regulator is reading this data across the market. Most principals are not reading their own.

This is a plain-English look at what sits inside the RCTI, and what a principal can read out of it that the monthly total never shows. It is general information, not advice.

What the RCTI is built to do

The recipient created tax invoice exists because the billing runs backwards. Normally the supplier issues the invoice. In aggregation the aggregator receives commission in bulk from the lender panel and pays it down to the network, so the aggregator raises the invoice on your behalf. The ATO allows this where both parties are registered for GST and a written agreement is in place.

That origin shapes what the document is for. It is a reconciliation record. Its job is to confirm the right amount was paid and that the 10% GST was handled correctly for your BAS. It looks backward at completed transactions. It is not built to tell you anything about where the business is heading, and the commission module inside most aggregator platforms is built the same way: to execute payments, not to analyse them.

So most principals read the RCTI the way it was designed to be read. Total at the top, a check against expectation, a look at anything that moved, then it gets filed. Everything underneath the total sits unused.

Concentration: the risk the file shows before the regulator does

Underneath the total is every loan you settled, tagged to a lender. Add 12 months of those together and you can see exactly how your network's volume is spread across the panel. That distribution is now something the regulator cares about.

The standard way to measure it is the Herfindahl-Hirschman Index, the same concentration measure competition regulators use. You take each lender's share of your settlement volume, square it, and add the squares. A perfectly spread book sits near zero. A book where everything goes to one lender sits at 10,000. The conventional reading is that anything above 2,500 is concentrated and anything below 1,500 is well diversified.

You do not need the maths to feel the point. If a large share of your network's flow goes to two or three lenders, you carry a risk you may not have priced. A policy change or a service blow-up at one lender hits a big slice of your pipeline at once, and under the best interests duty you cannot steer a client to a particular lender to protect your own position. ASIC's supervision in 2026 is explicitly looking at lender concentration across networks. The principals who can already produce their own number, broker by broker, are the ones who will not be caught out by the question.

There is a real tension in where you land. A tight panel is easier to run. Your brokers know the policies, the BDM relationships are warm, files move faster. A broad panel is safer on both counts, compliance and resilience, but it asks every broker to stay sharp across dozens of credit policies. That is a genuine business decision. The mistake is landing somewhere by accident, because you never looked at the number.

The trail book you think you have, and the one you've got

Upfront pays the bills. Trail is the asset. And trail is where reading the RCTI as a payment summary costs you the most, because the monthly trail figure hides two things moving underneath it.

The first is run-off. A residential book amortises and discharges constantly. As a rule of thumb a book sheds something in the order of 1% to 2% of its balance a month through repayments and refinances, which means a book left alone has a half-life measured in a few years. Your trail can look stable month to month while the book underneath it is quietly shrinking. The only way to see it is to track trail income against the outstanding balance over time. A falling yield is the tell. It means your higher-paying loans are running off and being replaced by lower-paying ones, or not replaced at all.

The second is what the book is worth. Trail books have re-rated hard. Where a residential book once changed hands at around 1.5 to 2 times annual trail, quality books now command something closer to 2.75 to 3.75 times, because buyers treat a stable, low-default mortgage trail as a bond-like annuity. That multiple is not automatic. It rests on exactly the things the RCTI can show: how diversified the book is, how fast it runs off, how clean the data behind it is. A principal who cannot produce that picture is negotiating their own enterprise value blind.

Clawback sits in the same place. Judged in raw dollars it is almost meaningless, because your best writers will always generate the biggest dollar clawbacks simply by settling the most. The number that means something is the rate: clawback as a percentage of the upfront each broker earned over a rolling year. Map that rate by broker and by lender and the file tells you whether your leakage is the market refinancing your clients out from under you, or particular writers putting business on the book that was never going to stick. Those are different problems with different fixes, and the dollar figure on the clawback line cannot tell them apart.

This is where two old habits quietly cost operators money. The first is treating trail as an annuity to harvest rather than a book to defend. Run it with no retention effort and you simply accept the run-off the market hands you. The second is ranking brokers on settlements alone. Gross written volume is the number the industry celebrates, but a steady writer with a high conversion rate and low clawback is worth more, and carries less regulatory risk, than a big writer churning a book that walks back out the door. The RCTI lets you see the difference. The settlement leaderboard does not.

The exit you can see coming

Trail value depends on keeping your brokers, because when a broker leaves the trail tends to leave with them. The RCTI is a leading indicator of that, long before it becomes a conversation.

The signals are simple and they are already in the data. Recency: how long since the broker's last lodgement. Consistency: how much their month-to-month settlement volume is bouncing around. A broker who is disengaging almost always slows down before they walk, and the slowdown shows up in their lodgement pattern months before they hand in notice. A principal watching that pattern can have the conversation early, while there is still something to fix and before the trail asset is being quietly packed up for a competitor. A principal reading only the monthly total finds out when the resignation email arrives.

The questions most principals cannot answer

So here is the test. From last month's RCTI, could you produce your network's lender concentration as a single number, this month against a year ago? Could you show your true clawback rate by broker, separated from the dollar figure? Could you say which of your brokers has quietly slowed down in the last quarter, and what your trail book would sell for today?

The data to answer every one of those questions is already sitting in a file you receive every month and read for 30 seconds. The information is not missing. It is just never read. The principals who will run the strongest businesses over the next few years are not the ones getting more data. They are the ones who finally start reading the data they already have.