Key takeaways
- →Pull-through rate measures the share of approved files that actually reach funding, not just the share that get approved.
- →Lenders watch pull-through by broker because a low rate means underwriting time spent on files that never close.
- →The biggest drivers of a weak pull-through rate are usually upstream of underwriting: unqualified leads, unclear pricing expectations, or slow condition clearing.
An approval feels like the finish line, but it isn't — a meaningful share of approved mortgage files never actually fund, for reasons that range from a client walking away to a condition that never gets satisfied in time. Pull-through rate is the metric that captures how many approvals actually turn into closed deals.
It matters to lenders because underwriting an approval that never funds is time spent with no return, and it matters to brokers because a weak pull-through rate is usually a symptom of something fixable earlier in the pipeline.
01 · What is pull-through rate, and how is it calculated?
Pull-through rate is the share of approved files that actually fund, calculated as funded files divided by approved files over a given period. It's distinct from first-pass approval rate, which measures whether a file is approved at all — pull-through picks up after approval and tracks whether the file actually closes.
A brokerage can have a strong first-pass approval rate and still have a weak pull-through rate, if a meaningful share of approved files stall or fall through between commitment and funding.
02 · Why do lenders care about a broker's pull-through rate?
Every approved file consumes underwriting capacity regardless of whether it ultimately funds, so a lender working with a broker whose approvals routinely don't convert is spending real underwriting time with no corresponding funded volume. Over time, that shapes how much priority a lender gives that broker's pipeline relative to brokers with a stronger conversion track record.
It's one of several efficiency signals — alongside the kind tracked through the broker's BDM relationship — that inform how a lender allocates attention across its broker channel.
03 · What typically hurts a broker's pull-through rate?
Most pull-through problems trace back to something upstream of underwriting: a lead that was never truly qualified for the product being pursued, a client whose rate expectations weren't realistic once the full offer was on the table, or a condition — an appraisal, an income document, a solicitor instruction — that stalls long enough for the deal to fall through.
- →Leads pursued past the point where they were realistically qualified for the product
- →Rate or product expectations set with the client that don't match what actually gets offered
- →Conditions that stall for long enough that the deal falls apart before it funds
04 · How can a broker improve pull-through without turning away business?
The fix isn't taking on fewer files — it's tightening the parts of the process that most often cause an approved file to stall: setting realistic expectations with the client early, and tracking conditions closely enough that nothing sits unresolved for longer than it needs to.
This condition-tracking discipline is exactly what a fulfillment team is built to maintain across an entire pipeline at once, rather than relying on a broker to remember which of a dozen approved files still has an open item.
More approvals that actually fund
Conditions tracked until the file actually closes.
Treadstone's fulfillment associates track open conditions across your full pipeline, so approved files don't quietly stall before funding.
05 · What does a weak pull-through rate actually cost, in practice?
The math is easier to see with a simple, illustrative example than in the abstract. Say a brokerage submits 50 files to lenders in a quarter and gets 40 approved. If 36 of those 40 approved files actually fund, the brokerage's pull-through rate is 90%, and the underwriting time behind the four files that stalled was, from the lender's perspective, spent for nothing. Drop pull-through to 75% on that same 40 approvals — ten stalled files instead of four — and the lender has now underwritten six extra files that consumed queue time and produced no funded volume, with no change at all in the brokerage's actual closing activity.
The broker's side of that same math is just as real: every one of those stalled files still represents hours already spent on document collection, submission prep, and condition follow-up. A brokerage that lifts pull-through from 75% to 90% on the same 40 approvals isn't closing more deals by working harder — it's recovering time that was already being spent on files that were never going to fund.
06 · Where, between approval and funding, do deals most often fall through?
Pull-through problems cluster at a handful of predictable points, and knowing which one is driving a brokerage's number is more useful than tracking the rate alone.
| Stage after approval | What typically goes wrong | Who usually catches it first |
|---|---|---|
| Rate hold expiry | The client's decision or condition clearing takes long enough that the held rate lapses before funding | Whoever is tracking the file calendar, broker or fulfillment team |
| Condition clearing | An appraisal, income document, or down payment confirmation stalls past the commitment deadline | Whoever owns open-condition tracking on the file |
| Client circumstances change | The client's situation shifts, or they simply walk away from the purchase | The broker, usually at the next scheduled check-in |
| Property falls through | The purchase itself collapses independent of the mortgage file, most often on a resale transaction | The realtor or client, relayed back to the broker |
Frequently asked questions
This article is general information to help you scale — not a substitute for tailored advice on your specific business, licensing, or compliance obligations. All figures are illustrative examples for planning purposes; actual costs vary by province, market, and brokerage.