Second charge lending just hit an 18-year high. That is not an accident.

Finance & Leasing Association figures put second charge lending at £625 million across 11,489 new agreements in Q1 2026, up 33% by value and 22% by volume on the same quarter last year. March alone produced £228 million, the strongest single month since February 2008. Over the twelve months to March, the sector lent £2.3 billion, up 27%, across 43,843 agreements. Those are not incremental numbers. Something structural is happening.

The reason is your existing mortgage rate

Millions of UK borrowers are sitting on fixed rates agreed in a materially cheaper environment. For those borrowers, releasing capital by remortgaging the whole facility means giving up a rate they will not see again and, in many cases, triggering an early repayment charge to do so. The arithmetic is brutal, and it is not close. A second charge leaves the first facility completely untouched and raises what is needed against the equity above it. That is not a workaround. On those numbers, it is simply the correct answer.

Lenders have noticed

Competition on the second charge side has sharpened accordingly. United Trust Bank relaunched residential second-charge lending at up to 90% loan-to-value in early August, with selected rate reductions of up to 60 basis points. Across the sector, speed of service has become a genuine differentiator, with automated underwriting and improved lender technology reducing turnaround times. Where second charge used to be the slower, more awkward route, it is increasingly not. See second-charge bridging loans to see how these cases are structured.

Where it still goes wrong

Volume growth hides the fact that these deals are not simple. A second charge needs formal consent from the first-charge lender, and that consent is where cases stall. Some lenders turn it round in days. Others take weeks, and a meaningful proportion issue it with incorrect wording that must be reissued, restarting the clock. Beyond consent, the lender is assessing the combined position across both charges, not just the second, which means the first-charge balance, the property value and the exit all have to hold together at once. And if there is anything sitting behind the scenes- a CCJ, an application at HM Land Registry, an insurance policy with the wrong wording- it surfaces during the legal process rather than before it.

Which is where the placement stops being the job

Both case studies Credco has published are second-charge deals, and neither was won at the point of placement. On the 9-flat development refinance, a £776,905 facility, most of the broker market had already walked away before the file reached us. On the £308,497 refinance, the case only completed because someone stayed in the middle through weeks of consent chasing, a solicitor who did not understand bridging, and a CCJ lender that registered a charge at HM Land Registry that took a month to clear. Finding a lender took days. Getting to completion took considerably longer, and that is the part that decides whether a borrower gets their money.

If you are considering one

Three practical points. Check what your first charge actually costs you to disturb, including any early repayment charge, before assuming a remortgage is the cheaper route; the comparison often surprises people. Start the consent conversation early, because it is the critical path on almost every second charge case. And be upfront about anything in the background, because a CCJ or a historic dispute disclosed at the start is a structuring problem, while the same thing discovered at legal is a deal-breaker. Across buy-to-let and the wider specialist book, this is the product doing the most work right now. Get in touch if you want to know whether it fits your case.