Mortgage leads come from more places than most brokers realise, and the ones that feel cheapest on paper are usually the most expensive per completed case. This guide walks through every source of mortgage leads in the UK, what each actually costs, and how they compare once you measure the only number that matters: cost per completed mortgage. The short version is that the best leads a broker has are often the ones already sitting in their own CRM.
This is a marketing and business guide, not financial advice. Everything here is about how brokers find and convert clients, not about mortgage products themselves.
What Are Mortgage Leads?
Mortgage leads are potential clients who have shown interest in mortgage advice or a specific mortgage product and could become a completed case. They range from cold data (a name and number with no expressed intent) to warm enquiries (someone who actively asked for advice) to your own dormant CRM contacts (people who enquired before but never completed). The warmer the lead and the closer their relationship to you, the higher it converts and the lower its true cost per completed case.
That range matters because "mortgage lead" is used to describe wildly different things. A scraped list of homeowners is a mortgage lead in the loosest sense. So is a person who filled in a "compare mortgages" form last night and is expecting three calls this morning. So is a client you completed a purchase for two years ago whose fixed rate is about to end. All three are leads. They do not convert anything like the same, and they do not cost anything like the same once you count what it takes to turn them into a completed case.
Where Mortgage Leads Actually Come From
There are really only a handful of channels a UK broker uses to generate leads, and each one sits in a different place on the trade-off between cost, control, and how warm the lead is when it lands. Here is the honest map of all of them, ranked roughly from coldest and most expensive per case to warmest and cheapest.
| Source | Typical price | Exclusive? | How warm | Cost per completed case |
|---|---|---|---|---|
| Shared bought leads | £20-£80 each | No (3-5 brokers) | Cold | High |
| Exclusive bought leads | £80-£150+ each | Yes | Cool | Medium-high |
| Comparison portals | Per lead or per click | Usually no | Cool | Medium-high |
| Your own paid ads | Ad spend + setup | Yes | Cool-warm | Medium |
| Content and local SEO | Time or agency fee | Yes | Warm | Low over time |
| Reactivating old CRM enquiries | Pennies + campaign fee | Yes | Warm | Low |
| Referrals and existing clients | Near zero | Yes | Hot | Lowest |
Most brokers spend the majority of their budget at the top of that table and almost nothing at the bottom, which is exactly backwards. The rest of this guide goes through the choices in the order that actually matters for your margin.
What Mortgage Leads Cost in the UK
In 2026, bought mortgage leads in the UK typically run from around £20 to £80 for shared leads, and £80 to £150 or more for exclusive leads. But the sticker price is misleading. Shared leads are sold to several brokers at once, so your real number is cost per completed case after a low conversion rate. A cheap shared lead can end up costing more per completed mortgage than a warm referral or a reactivated enquiry that cost you almost nothing.
A shared lead is the same enquiry sold to three, four, sometimes five brokers. The borrower submitted one form and is now getting a small avalanche of calls. Whoever gets through first, and sounds most reassuring, tends to win. Everyone else paid for a lead they never had a real chance of converting. That is why the headline price of £20-£80 is close to meaningless on its own. The question is never "what does a lead cost". It is "what does a completed case cost".
The Only Metric That Matters: Cost Per Completed Case
Here is the same £40 shared lead run through honest maths. Say you buy 100 of them for £4,000. Because the lead is shared and cold, you get through to and properly qualify maybe 40 of them. Of those, a handful are genuinely in the market, ready, and choose you over the other brokers who bought the same lead. A 3-5% completion rate on shared leads is a realistic outcome, so 100 leads becomes 3 to 5 completed cases. That is £800 to £1,300 of lead cost per completed mortgage, before you count the hours your team spent chasing the 95 that went nowhere.
Now compare that to a lead you already own. A dormant enquiry in your CRM cost you nothing to acquire again, a few pence to message, and converts at a higher rate because the person already knows your name. The cost per completed case is a fraction of the bought-lead number. This is the entire argument of this guide in one paragraph: measure cost per completed case, not cost per lead, and the ranking of sources flips almost completely.
Buying Mortgage Leads: When It Makes Sense
Bought leads are not useless. For a new broker with no back book, no referral network, and spare capacity to chase hard, buying leads is a legitimate way to get cases on the board. The trick is going in with the maths above already done, so you know your break-even and stop the moment a source stops clearing it.
If you are weighing this up, the honest breakdown of shared versus exclusive, and the traps in how lead sellers report their numbers, is in our companion guide on buying mortgage leads in the UK. The one-line summary: exclusive leads convert better and are usually worth the premium, and shared leads only work if you can respond in minutes, every time.
Generating Your Own Mortgage Leads
Owning the channel changes everything. When a lead comes from your own ads, your own content, or a referral, it is exclusive to you, it arrives warmer, and the cost per case drops as the channel matures. The downside is that it takes setup and patience: paid ads need a landing page and a follow-up system, and content and local SEO take months to compound before they pay.
We have written the full channel-by-channel playbook, referrals, portals, content, ads, and reactivation, ranked by cost per completed case, in lead generation for mortgage brokers. If you are trying to build a pipeline that does not depend on buying cold leads forever, start there.
The Cheapest Mortgage Leads You Already Own
The cheapest mortgage leads a broker has are the dormant enquiries already sitting in the CRM: people who asked for advice, got a quote, or started a fact-find but never completed, usually for a timing reason rather than a rejection. Reactivating that list with a structured sequence converts better than buying cold leads, because the borrower already knows you, and the acquisition cost was already paid when the enquiry first came in.
Almost every established broker is sitting on hundreds of these. The purchase that fell through. The remortgage that was "not quite yet". The first-time buyer who was six months off having a deposit. None of them said no forever. They said not now. And the single biggest reason they never came back is that nobody followed up when their circumstances changed.
Database reactivation is the mechanism that fixes this at scale. An AI sequence contacts every dormant enquiry across email, SMS, or WhatsApp, acknowledges the previous conversation, asks a simple re-engagement question, qualifies who is ready to talk now, and books those people straight into an adviser's calendar. It is the reason we built a dedicated reactivation service for mortgage brokers: the cost per booked call is a fraction of any bought lead, because you are recovering value you already paid for.
Speed to Lead: The Multiplier on Every Source
Whatever source a lead comes from, one thing decides more of the outcome than any other: how fast you follow up. The average business takes many hours to respond to a web enquiry, and a large share never respond at all. Meanwhile the borrower has moved on to whoever called first. For shared leads this is not a nicety, it is the whole game, because you are racing every other broker who bought the same contact.
We pulled the evidence together, and the systematic fix, in the speed-to-lead guide. The takeaway for mortgage leads specifically: respond in minutes, follow up more times than feels comfortable, and put a system behind the follow-up so a good lead never dies in an inbox.
Frequently Asked Questions
What are mortgage leads?
Mortgage leads are potential clients who have shown interest in mortgage advice or a specific mortgage product and could become a completed case. They range from cold data (a name and number with no expressed intent) to warm enquiries (someone who actively asked for advice) to your own dormant CRM contacts (people who enquired before but never completed). The warmer the lead and the closer their relationship to you, the higher it converts and the lower its true cost per completed case.
How much do mortgage leads cost in the UK?
In 2026, bought mortgage leads in the UK typically run from around £20 to £80 for shared leads, and £80 to £150 or more for exclusive leads. But the sticker price is misleading. Shared leads are sold to several brokers at once, so your real number is cost per completed case after a low conversion rate. A cheap shared lead can end up costing more per completed mortgage than a warm referral or a reactivated enquiry that cost you almost nothing.
What is the best source of mortgage leads?
For most established brokers, the best source is not one you buy. Referrals and existing-client remortgage triggers convert highest, followed by reactivating dormant enquiries already in your CRM. Portals and bought leads fill gaps but cost the most per completed case, because the borrower does not know you. Ranked by cost per completed mortgage, the order is usually: existing clients and referrals first, reactivated old enquiries second, bought or portal leads last.
Are shared mortgage leads worth it?
Sometimes, but only if you are fast. A shared lead is sold to three, four, or five brokers at once, so the borrower is fielding multiple calls and you are racing to be first. Speed to lead becomes everything: respond in minutes or the lead is gone. If you cannot commit to near-instant follow-up, shared leads are usually a poor investment. Exclusive leads convert better but cost more, and the maths only works if your close rate and average procuration fee justify the price.
How do I convert more mortgage leads?
Speed and follow-up decide most of it. The average business takes many hours to respond to a web enquiry, and a large share never respond at all, yet most leads go to whoever calls first. Respond within minutes, follow up more times than feels comfortable, and put a system behind it so nothing slips. The other half of the equation is working leads you already let go cold, which convert better than any new lead because the relationship already exists.
How can I get mortgage leads for free?
The cheapest leads a broker has are the ones already sitting in the CRM. Ask existing clients for referrals and contact them ahead of remortgage and product-transfer dates. Reactivate old enquiries: people who asked for advice months or years ago but never completed, often for timing reasons. Build local visibility through Google reviews and content. None of these routes carry a per-lead cost, and they convert better than bought leads because the borrower already knows your name.
Before You Buy Another Lead, Work the Ones You Own
Levity runs AI database reactivation for mortgage brokers. We take the dormant enquiries already in your CRM, run the full sequence, qualify responses with AI, and deliver booked calls to your advisers. You pay per meeting booked, not per message sent, which usually makes it the cheapest pipeline in the business.
Rees Calder is the founder of Levity, an AI-powered lead generation agency. He builds AI reactivation and outbound systems for UK mortgage brokers and other high-ticket B2B and B2C clients. Cost figures in this guide are indicative UK market ranges for 2026, not quotes, and this article is marketing guidance rather than financial advice.