How to Calculate Your Cost Per Settled Loan (And Why CPL Alone Tells You Nothing)

Every mortgage broker who runs paid advertising knows their cost per lead. It's the number their agency puts in the monthly report. It's the number they use to judge whether a campaign is working. Spoiler: the agency that promised 50 leads a month is now explaining why 12 leads is "industry standard," and nobody is talking about how many of those 12 actually settled.

CPL is a vanity metric. Not because leads don't matter, but because a lead that never settles costs you money and gives you nothing. The number that tells you whether your marketing is actually profitable is your cost per settled loan, and most brokers have no idea what theirs is.

This article will show you how to calculate it, what it should look like, and how to set up your systems so you can track it without guessing.

Why CPL Is the Wrong Number to Optimise For

Cost per lead measures how cheaply you can get someone to fill out a form. That's it. It says nothing about the quality of the person who filled it out, whether they were actually ready to proceed, or whether they ever picked up the phone when you called.

You can have a $10 CPL and a terrible business outcome. You can have a $35 CPL and extremely strong profitability. The difference is what happens between the lead coming in and the loan settling.

When you optimise purely for CPL, you often end up with cheaper leads that convert at a lower rate. The algorithm finds the people most likely to tap a button. Not the people most likely to become clients. These are not always the same group.

The Formula

The calculation is straightforward. What makes it difficult in practice is the attribution, which we will get to shortly.

That is the entire formula. The complexity comes from correctly identifying which settled loans came from which marketing spend, and that requires proper CRM attribution.

A Real Example Worked Through

Here is a scenario that plays out more often than most brokers realise. You spend $3,000 on a Meta campaign. You generate 30 leads at $100 CPL. Twelve weeks later, you want to know what that campaign actually produced.

Let's work through the funnel with realistic conversion rates for a well-run broker operation. Ten percent of those 30 leads submit a formal application. That gives you 3 applications. Of those 3, 70% reach settlement. That is 2.1 settled loans, which we will round to 2 for this exercise.

Your $3,000 in spend produced 2 settled loans. Your cost per settled loan is $1,500.

Now look at what those settled loans are worth. The current average Australian loan size is $694,000 (loans.com.au, September 2025). At a standard upfront commission of 0.6%, that is $4,164 per settled loan in upfront revenue. Multiply by 2 and you have $8,328 in upfront commissions from a $3,000 spend.

Net return on marketing spend, just on upfront: $5,328. And that does not include trail commission, which compounds over the life of the loan.

What "Good" Actually Looks Like

A reasonable target for cost per settled loan is under 30% of your upfront commission. On a $694,000 average loan at 0.6% upfront, that commission is $4,164. Thirty percent of that is $1,249.

So a healthy cost per settled loan benchmark for the current market is under $1,250. If you are consistently settling loans at a marketing cost above that threshold, your funnel has a problem worth fixing. Either your lead quality is too low, your follow-up is not converting at a reasonable rate, or your campaign spend is not efficient enough.

If you are below $1,000 per settled loan, you are running a highly efficient operation and the case for scaling is straightforward.

Why Most Brokers Cannot Answer This Question

Ask ten mortgage brokers what their cost per settled loan is. You will get nine blank stares and one broker who gives you a number they made up. This is not laziness. It is a systems problem.

There are three specific reasons brokers cannot track this:

• No CRM attribution. Leads come in through Facebook, Google, referrals, and word of mouth. They all land in the same inbox or the same spreadsheet with no tag indicating where they came from. By the time a loan settles, nobody remembers the source.
• Multiple lead sources running at once. When you are running Meta ads, Google ads, and a referral program simultaneously, and none of them are tagged separately in your pipeline, you cannot attribute a settlement to any single source. You just know a loan settled.
• The time delay makes it feel disconnected. A lead comes in during January. The loan settles in March. The January campaign is ancient history. The psychological connection between the marketing spend and the revenue is almost impossible to maintain without a system that does it for you.

How to Set This Up in Your CRM

The solution is straightforward in principle and requires about one hour to implement properly. Here is what your system needs to do:

1. Tag every lead with its source the moment it enters the CRM. This is non-negotiable. "Meta ads," "Google ads," "referral from client name," "direct enquiry." Every single lead needs a source tag before anything else happens. If you are using a lead form on Facebook, this tag can be applied automatically. If leads come in by phone or email, whoever enters them into the CRM applies the tag manually.
2. Create pipeline stages that match your actual process. Enquiry received, qualified, application submitted, approved, settled. Every lead moves through these stages as their status changes. This creates the trail you need to trace settlements back to their source.
3. Record the settlement date and loan amount when a loan settles. This connects the revenue to the source. Some CRMs will calculate commission automatically from the loan amount. Others require you to enter it. Either way, this data needs to live in the same record as the source tag.
4. Run a monthly source report. How many leads from each source? How many applications from each source? How many settlements from each source? What was the total spend on each source? The cost per settled loan calculation falls out of this report automatically.

Most mainstream CRMs used by Australian mortgage brokers, including Mercury, Salesforce, and even purpose-built tools, can do all of this. The issue is that most brokers have not set them up to track it. For a broader view of how to make your marketing spend legible, read our guide on how to calculate marketing ROI as a mortgage broker.

The Quarterly View Is More Useful Than Monthly

One trap brokers fall into is calculating cost per settled loan monthly and panicking when the number looks wrong. The problem is timing. A lead that comes in during month one is unlikely to settle within that same month. The average time from lead to settlement in Australia is 6 to 12 weeks.

If you calculate cost per settled loan monthly, you will always see spend before you see settlements. January's spend will show up in February and March's settlements. This makes monthly cost per settled loan look artificially high and creates unnecessary doubt about campaigns that are actually performing well.

Run monthly tracking to spot trends and flag anomalies. Make strategic decisions based on quarterly data, where the timing has had a chance to even out.

Frequently Asked Questions

What is a good cost per settled loan for mortgage brokers?

A good cost per settled loan sits under 30% of your upfront commission. On the current Australian average loan size of $694,000, upfront commission at 0.6% is roughly $4,164. That puts a healthy cost per settled loan at under $1,250. If you are consistently paying more than that per settlement, your campaign economics need a close look.

How do I know which leads actually settled?

You need source tagging in your CRM from the moment a lead enters the system. Every lead gets tagged with where it came from. Every loan that settles has that source tag attached to the record. When you run a settlement report, you can filter by source and see exactly how many loans each channel produced.

Without this tagging, you are guessing. And guessing at $3,000 to $5,000 per month in ad spend is an expensive habit.

Should I calculate cost per settled loan monthly or quarterly?

Quarterly is more useful for strategic decisions, because the gap between a lead arriving and a loan settling is typically 6 to 12 weeks. A monthly calculation will almost always look worse than reality because recent leads have not had time to settle yet. Run monthly checks to spot trends, but make campaign decisions based on quarterly data.