Second Charge vs Remortgage for Landlords: Which Is Better?
This article explores second charge vs remortgage routes for landlords, and how to protect a good mortgage rate while raising capital.
21/10/2026By Sunil Chander · Co-Founder
This article explores second charge vs remortgage routes for landlords, and how to protect a good mortgage rate while raising capital.
For a landlord who already has a mortgage in place, raising capital can potentially come from a remortgage or a second charge mortgage. A remortgage replaces the existing mortgage entirely, while a second charge sits alongside but junior to it in security ranking as a separate facility. Which one is right depends on what happens to the mortgage a landlord already holds, particularly if that mortgage is on a favourable fixed rate deal. Understanding the mechanics of each option and the cost of disrupting an existing deal is essential for any landlord making a capital-raising decision.
Second mortgage vs second charge: Clearing up the terms
The terms second mortgage and second charge are often used interchangeably, as they refer to the same product. A second charge mortgage is a loan secured against a property that already carries a first charge mortgage, with the new lender registering a second legal charge over the title. The original mortgage remains in place on its existing rate and terms, while the second charge mortgage operates as an independent facility with its own interest rate, term and repayment schedule, with its security ranking behind the first charge.
Before a second charge can be registered, the existing first mortgage lender will normally need to provide consent for a further charge being placed on the property. Second charge mortgage regulation changed significantly on 21 March 2016, when second charge mortgage activity was brought within the FCA mortgage regime. The precise regulatory position can depend on the borrower, property use, and whether the borrowing is treated as business buy-to-let or consumer lending, so landlords should take advice before proceeding.
When remortgaging is the better route
Remortgaging works well when a landlord's existing deal has ended, or is close to ending, and a more competitive rate is available on the wider market, and assuming there is adequate equity in the property to extend the borrowing amount beyond the original first charge amount. Because a remortgage replaces the entire first charge mortgage balance, it can also be the simpler route when a landlord wants to consolidate borrowing into a single facility, extend the mortgage term, or move away from a lender whose service or flexibility no longer suits the portfolio.
Buy-to-let remortgage rates have moved meaningfully over the past year, and some lenders have been cutting rates on selected products in 2026, which has made switching more attractive for landlords coming to the end of an older, more expensive deal. A standard remortgage can often take around four to eight weeks from application to completion, although timing depends on valuation, legal work, lender requirements and the complexity of the landlord's circumstances.
The fixed rate trap
The complication arises for landlords still inside a fixed-rate deal term, since remortgaging early usually triggers an early repayment charge, deducted directly from the equity released. These charges typically range from 1-5% of the outstanding balance, sliding down as the fixed term progresses, so a landlord exiting in year one of a five-year fix pays considerably more than one exiting in year four. On a £300,000 balance with a 3% ERC, this can mean a bill of £9,000 before a penny of new capital reaches the landlord.
This is the fixed rate trap. A landlord locked into a competitive rate faces a real cost simply for wanting to access their own equity, and that cost has to be weighed against whatever the new deal saves. Remortgage exit fees are sometimes worth paying if the rate gap and remaining term justify it, but landlords with two or more years left on a competitive fix, and a smaller borrowing need, often find the maths does not work in their favour. Landlords with more than one mortgaged property should also watch how fixed terms line up across the portfolio.
When a second charge makes more sense
A second charge becomes the more sensible option precisely where the fixed rate trap applies, since it allows a landlord to keep an existing mortgage rate entirely intact while still accessing equity. Because the first charge is not being redeemed, a second charge will usually avoid triggering an early repayment charge on the existing first charge mortgage, and the landlord retains whatever rate, term and lender relationship they already have.
Second charge rates are usually higher than first charge rates because the lender is repaid only after the first mortgage lender. Pricing will depend on factors such as credit profile, property type, loan purpose, combined loan-to-value and affordability assessment. Combined loan-to-value (the first mortgage balance plus the new second charge together as a proportion of the property's current value) is the single biggest factor in the rate offered, with the most competitive pricing generally reserved for combined loan-to-value below around 70%. Even so, for a landlord protecting a well-below-market first charge rate, the blended cost across both facilities can still land lower than remortgaging the entire balance onto today's rates.
Pauzible's equity partnership
Pauzible offers an equity partnership model that leaves the existing first charge mortgage untouched. Eligible landlords can release up to £500,000 per property over a chosen term of two, three or five years. The monthly cost is split between a monthly rent share and a separate monthly interest cost, the latter of which can be paid monthly or deferred to the end of the term under either of our two final repayment options.
Landlords can choose between a fixed repayment amount agreed upfront at the end of the term or a property value-linked repayment tied to the property's value at the time of repayment, provided that repayment falls after year three of the term. The repayment amount when settling earlier than three years uses whichever is higher between the property's value at that point and its value at the outset of the loan. Any deferred interest also becomes payable in full at that point as if the loan had run to the end of its full term. Landlords can settle any time through a sale, a remortgage, or by repurchasing Pauzible's share outright. To model scenarios and understand how much equity you might release, explore our helpful calculator.
Conclusion
Choosing between a second charge and a remortgage ultimately comes down to protecting what a landlord already has while raising what they now need. Remortgaging suits landlords whose fixed term has run its course or who want the simplicity of a single facility on updated terms. A second charge suits landlords who are still within a valuable fixed rate deal term and want to avoid the cost of breaking it. If you are interested in exploring an equity partnership arrangement, speak to Pauzible to learn more about this route.
FAQs
Q. What is the main difference between a second charge and a remortgage?
A. A remortgage replaces the existing mortgage entirely with a new facility, usually with a new lender. A second charge is a separate loan that sits behind the existing mortgage, which remains untouched as to its current rate and terms.
Q. Will I pay an early repayment charge if I remortgage early?
A. Often, yes, particularly if you remortgage before a fixed rate ERC-bearing deal ends. The exact charge depends on the terms of the mortgage product.
Q. How do I know if the fixed rate trap applies to me?
A. If you are still within a fixed-rate term and the savings from a new deal do not clearly exceed the early repayment charge you would face, you are likely caught in the fixed rate trap, and a second charge may be worth considering.
Q. Are second charge mortgage rates always higher than remortgage rates?
A. Generally, yes, since second charge lenders take on more risk by sitting behind the first mortgage. However, when the cost is blended across both facilities, a second charge can still work out cheaper than remortgaging away a well-priced first charge mortgage.
Q. Can I take out a second charge without affecting my existing mortgage?
A. In most cases, yes. A second charge is a separate, independently assessed facility, so your existing first mortgage rate and term are not replaced. However, your first mortgage lender will normally need to consent, and the second charge may affect future refinancing options.
Q. How much can I typically borrow with a second charge mortgage?
A. This depends on your available equity, affordability, credit risk and the combined loan-to-value across both facilities once the first mortgage is factored in. Lower combined loan-to-value ratios tend to unlock the most competitive terms available.
Q. What should I compare before choosing between the two options?
A. Compare the early repayment charge on your current deal, the rate and term available on a remortgage, the rate available on a second charge, and the total blended cost of keeping both facilities running side by side.
Q. What financing alternatives are there for releasing equity?
A. Our equity partnership model enables landlords to unlock property equity in exchange for a monthly rent share and an interest cost. Use our helpful calculator to explore different options for financing with Pauzible.
Q. When is it worth paying an early repayment charge to remortgage anyway?
A. It is generally worth it when the interest saved on the new rate, over the time remaining on the old deal, exceeds the cost of the early repayment charge itself.
About the author
Sunil Chander
Co-Founder
Sunil oversees operations and compliance at Pauzible, drawing on his extensive experience as the founder and CEO of Dawnbud Limited, a financial services consulting firm. His prior career included senior roles in investment banking at Smith New Court and NatWest. He holds an MBA from LBS, M Litt from Oxford and a PhD from Cambridge.
Second Charge LoansRemortgagingEarly Repayment ChargesEquity ReleaseBuy-to-Let Mortgages
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