A second charge mortgage is a loan secured on your home, sitting behind your main mortgage. It is also called a secured loan, a homeowner loan or a second mortgage, and it lets you borrow against the equity in your property: the difference between what your home is worth and what you still owe on your main mortgage1. Because the lender has a claim on your home if things go wrong, the borrowing is secured, and that single fact shapes everything else about the product: how much it costs, who can get it, and what happens if you cannot pay.
The Finance & Leasing Association describes it plainly: a second mortgage is just like a regular first mortgage, secured on the borrower's property, except that any claim the lender has comes after the first lender's1. National Debt Line notes that secured loans are sometimes called second mortgages2, and StepChange explains that a secured debt consolidation loan works like a second mortgage3. The "charge" in the name is the legal claim registered against your property title, and "second" means it ranks behind your main mortgage in priority.
A loan secured on your home's equity, behind the main mortgage
A second charge mortgage works by using some of the available equity in your property as security for new borrowing. Equity is what is left when you take what your home could sell for and subtract what you owe on your main mortgage. A homeowner with a £300,000 property and £180,000 left on the main mortgage has £120,000 of equity, and a second charge lender lends against a portion of that, not against the full value of the home.
The legal position is what makes this a mortgage rather than a personal loan. The lender registers a charge against your property title, and that charge ranks behind the first charge held by your main mortgage lender. The Finance & Leasing Association puts it this way:
"A second mortgage is just like a regular first mortgage. It also secured on the borrower's property, except that any claim the lender has comes subordinate to the first lender's."1
The same priority rule appears in other corners of the mortgage market. Which? explains that if you still have a mortgage on your property, a bridging loan will typically be a second charge loan, meaning that if you failed to meet repayments and your home was sold to pay off your debts, your mortgage would be paid off first8. That ordering matters most when things go wrong, and it also matters when you sell, as covered later in this page.
Second charge lending is a recognised part of the UK lending landscape. The Bank of England's statistics on lending to individuals treat second-charge mortgages as a distinct category, noting that since January 2008 they have been excluded from other specialist lenders' secured lending data9. In other words, the official figures keep this kind of borrowing separate from ordinary first charge mortgage lending, because it behaves differently.
What people use second charge loans for
The Finance & Leasing Association lists the uses homeowners put second mortgages to: renovations, helping family buy a first home, raising a buy-to-let deposit or business investment capital, unexpected bills, easing irregular cash-flow, one-off large items, and loan consolidation1. The common thread is a need for a larger sum than unsecured lending comfortably provides, combined with equity in a home that can be borrowed against.
Debt consolidation is one of the most common reasons. NI Direct, the Northern Ireland government information service, notes that if you have a poor credit rating, you may only be able to get a loan at a high interest rate or secured against your home10, and Macmillan's guidance for people affected by cancer similarly explains that an unsecured loan is not secured against something you own, which means there is not the same risk of your property being taken, but interest rates may be higher11. Consolidating several debts into one secured loan can reduce the monthly payment, but it converts debts that were once unsecured into debt secured on your home, which raises the stakes.
Some uses carry specific restrictions. If you have a Help to Buy: Equity Loan, the government's repayment guide is explicit that buying a second property while you have the equity loan is a breach of the terms, and you will be legally required to repay the equity loan in full12. So while a second mortgage can be used to raise a deposit for another property in some circumstances, homeowners with government scheme charges on their title need to check those terms first.
It is also worth knowing that second charge lending sits within a wider category the Bank of England calls "other consumer credit lenders", made up of non-bank credit grantors and specialist mortgage lenders extending consumer credit9. The lenders in this market are often specialists rather than high street banks, which is one reason the products, terms and charges vary so much from one lender to the next.
Costs: interest, setup, valuation and legal fees
The cost of a second charge mortgage has two parts: the interest you pay over the life of the loan, and the one-off charges at the start. Interest rates on secured loans are set by each lender, and this site does not carry individual providers' rates. What can be said firmly is the pattern in the evidence: because the loan ranks behind your main mortgage, and because it is often used by borrowers who cannot or do not want to remortgage, rates on second charge loans tend to reflect a higher-risk form of secured lending than a first charge mortgage.
The one-off costs mirror the costs of any secured property transaction. NI Direct's guidance for homebuyers lists the kinds of fees that can arise in a property transaction: a solicitor, an independent surveyor, a mortgage arrangement fee, a Land Registry fee, and Stamp Duty13. A second charge loan involves several of the same steps in miniature: the lender will want a valuation of the property, legal work to register the charge against your title, and often an arrangement or setup fee for the loan itself. Ask any lender or broker for a full list of setup charges before you commit, because these vary and are added to what you owe.
Ongoing costs are not only the loan payment. NI Direct reminds homeowners that owning a home brings continuing costs such as paying the mortgage, rates, repairs and service charges14, and a second charge loan adds a second secured payment on top of the first. When working out whether the borrowing is affordable, the honest comparison is between the new total of both secured payments plus your other housing costs, and your reliable income. Which?'s guide to mortgage basics makes the same point from the other direction: lenders run affordability checks before lending, and the deposit and equity position are central to what they will offer15.
Early repayment and exit charges
Paying a secured loan off early is not always free. Which?'s reporting on borrowing against your home notes that if you change your mind, it can prove costly, as repaying your loan early often triggers an early repayment charge16. That is a general feature of loans secured on property, not just of equity release: the lender has priced the loan on the assumption of receiving interest over a set period, and an early repayment charge compensates it when you leave early.
The size and shape of these charges vary by product. For comparison, on unsecured personal loans Which? notes that it isn't unusual to be charged one or two months' interest when settling early17, which is a much smaller penalty than secured loans can carry. Secured loan early repayment charges are often a percentage of the amount repaid and can apply for an initial fixed or discounted period, sometimes stepping down over time. The exact charge for any particular loan must be set out in the documentation the lender gives you before you sign.
Two situations where this matters in practice:
- Selling your home. Because the loan must normally be repaid when you sell, an early repayment charge can land at exactly the moment you are also paying estate agency and legal costs. Check the charge before putting your home on the market.
- Coming into money. An inheritance, bonus or redundancy payment used to clear the loan early can trigger the charge, so ask the lender for a settlement figure first, in writing.
The dedicated guide to early repayment charges explains how these charges work on mortgages generally, and mortgage fees and charges covers the other costs of secured borrowing.
Who can get one: equity, income and credit checks
Three things decide whether a lender will offer a second charge mortgage: how much equity you have, whether the payments are affordable from your income, and what your credit history looks like. Each lender sets its own rules, but the regulatory framework they work within is set by the Financial Conduct Authority's mortgage rulebook, which covers mortgage contracts including first and second charge mortgages and bridging loans18.
On credit history, the picture is mixed but not closed. StepChange's guidance notes that having missed payments, reduced payments, County Court judgments and Decrees on your credit file does not mean you cannot get a mortgage, but you may have to pay more in interest and fees19. Which?'s guides to mortgage types make the same point: if you have marks on your credit history, you may need to get a mortgage from a specialist lender20. NI Direct adds a caution worth repeating: if you have a poor credit rating, you may only be able to get a loan at a high interest rate or secured against your home10. The site's guide to getting a mortgage with bad credit covers this in more depth.
There are also some specialised legal categories worth knowing about. The legislation behind consumer credit includes a defined category of "limited interest second charge credit union loans": agreements where the mortgage ranks in priority behind one or more other mortgages affecting the land, and the lender is a credit union22. Credit unions are community lenders that often lend at lower rates than commercial firms, and the credit unions guide explains how they work. The same legislation defines second charge business loans, where the lender provides credit exceeding £25,000 and the agreement is entered into wholly or predominantly for business purposes22.
In practice, lenders ask for evidence before making an offer. One lender's application checklist, from Together, shows what is typically wanted: proof of income and outgoings, details of the property and the main mortgage, and, where there is a restriction on the title, a signed letter of consent from the first lender so the second charge can be placed4. Restrictions on title are common with government schemes and some first charge mortgages, which is why the consent question in the FAQ above matters.
If you are weighing a second charge loan against borrowing more on your main mortgage, the comparison page on second charge mortgage or remortgage sets the two side by side, and borrowing more on your mortgage explains further advances.
Second charge mortgage or unsecured loan: how each one behaves
The choice most homeowners face is not between a second charge loan and nothing, but between a secured loan and an unsecured personal loan. The core difference is what stands behind the debt. Macmillan's guidance states it plainly: an unsecured loan is not secured against something you own, which means there is not the same risk of your property being taken, but interest rates may be higher11. A second charge loan is the reverse: the rate may be lower or the amount available larger, but your home is the lender's security.
The two also behave differently when you repay early and when your circumstances change. On early repayment, an unsecured personal loan typically carries a charge of one or two months' interest17, while a secured loan's early repayment charge can be larger and last longer16. On changing your mortgage, Which?'s reporting on mortgage prisoners describes a hybrid case worth knowing about: with one lender's unsecured loan tied to a mortgage, if you switch your mortgage to a different provider, the unsecured loan's interest rate shoots up24. Product terms can bind the two kinds of borrowing together in unexpected ways, so read the conditions attached to any loan tied to your mortgage.
The risk difference is not theoretical. The Financial Conduct Authority, in the consultation that brought second charge mortgages under its mortgage rules, noted that arrears rates for second charge mortgages are significantly higher than for first charge mortgages, with 10-15% of loans originated between 2009 and 2012 experiencing arrears in the first year, and a fifth to a third in total after origination5. Borrowers who take second charges are, as a group, more likely to fall behind than borrowers with only a first mortgage. That does not mean any individual borrower will, but it explains why lenders price and monitor these loans more cautiously, and why the "your home is at risk" warning is not boilerplate.
Who each tends to suit is a matter of circumstance rather than recommendation. An unsecured loan tends to fit smaller amounts, shorter terms and borrowers unwilling to put their home at risk. A second charge loan tends to fit larger amounts, borrowers with substantial equity, and situations where remortgaging the whole main mortgage would trigger a large early repayment charge or lose a rate worth keeping. The loans guide covers unsecured borrowing in full.
Your home is at risk if you cannot keep up repayments
This is the warning every secured loan carries, and it is meant literally. Together's own application checklist carries the standard wording:
"Your home may be repossessed if you do not keep up repayments on your mortgage."4
The FCA's arrears data, quoted above, shows how real that risk is in this market: significantly higher arrears rates than first charge mortgages, with 10-15% of loans from the 2009 to 2012 origination years in arrears within the first year5. If you fall behind, the consequences run further than the repossession itself. Shelter Cymru's guidance explains that if your home is repossessed or you hand over the keys to your lender, you will still be responsible for your mortgage payments until the home is sold7, and if the sale does not clear what you owe, the shortfall can follow you afterwards. National Debt Line's guides cover negative equity and mortgage shortfalls in detail25.
If you are struggling, the first step is to talk to your lender before you miss a payment. Which? reports that you shouldn't worry about harming your credit score by discussing your situation and exploring options with your lender, because doing so won't affect it27. Business Debt Line's guidance adds a caveat specific to this market: it is unclear whether the Mortgage Charter applies to second charge mortgages28, so borrowers cannot assume the protections negotiated for first charge mortgages extend to secured loans. The pages on falling into arrears and repossession in England and Wales set out the process and your rights.
There is one further protection worth naming. Surviving Economic Abuse's guidance notes that a damaged credit rating may prevent you from getting another mortgage, and describes how economic abuse can operate through a mortgage, including where one party controls or undermines the other's mortgage borrowing29. If someone is pressuring you to take out a secured loan against your will, or using joint property to control you, that is not a normal borrowing decision, and the debt guide lists sources of free, confidential help.
What happens to a second charge loan when you sell
A second charge loan does not travel with you. When you sell your home, the loan is normally repaid out of the sale proceeds, and the order of payment follows the order of the charges. Shelter Cymru explains that if you have other debts taken out with your home as collateral, such as a second mortgage, these creditors may be entitled to a share of the proceeds, but the debt to the mortgage lender is paid first7.
The same repayment trigger applies in other situations that end your ownership. Shelter England's guidance on support for mortgage interest notes that you must pay the loan back when you sell your home or transfer it to someone else30. NI Direct's guidance on debt when someone dies explains what happens at the end of life: if the mortgage lender required life insurance this may pay off the full amount of the loan, but if there isn't any insurance, or for second mortgages not covered, the property may have to be sold31. Independent Age's guidance on equity release describes the same principle for lifetime mortgages: the loan is paid back when the property is sold, usually if you die or move into a care home32, and Which? describes drawdown plans repaid from the proceeds when the property is sold, either when the last borrower dies or moves into long-term care33.
Two practical points follow. First, because the second charge must be repaid on sale, check the early repayment charge before you market your home, as covered earlier. Second, if the sale price is not enough to clear both the main mortgage and the second charge, you can be left owing money, so anyone selling in a flat or falling market should get a settlement figure from both lenders in writing first. The page on selling in negative equity covers that situation.
Complaints: 34% of those decided upheld
Second charge mortgage complaints are a small but significant part of the Financial Ombudsman Service's caseload, and the uphold rate is worth knowing if you are thinking of complaining. In the 2025/26 annual complaints data, 34% of the second charge mortgage complaints decided were upheld in the consumer's favour6. For context, that is a higher uphold rate than several much bigger product areas: 26% of personal loans complaints in the first quarter of 2025/26 were upheld34, 28% of credit card complaints in 2025/26 were upheld6, and 27% of current account complaints in the third quarter of 2025/26 were upheld35. It is lower than some, such as Help to Buy and shared equity loans at 64% in 2025/266. The volume is also rising in the most recent data: 124 second charge mortgage complaints were opened in the first quarter of 2026/2736.
| Complaint type | Uphold rate | Period |
|---|---|---|
| Second charge mortgage | 34% | 2025/266 |
| Personal loans | 26% | Q1 2025/2634 |
| Credit cards | 28% | 2025/266 |
| Current accounts | 27% | Q3 2025/2635 |
| Help to Buy and shared equity loans | 64% | 2025/266 |
| Lifetime mortgage | 13% | Q1 2026/2736 |
An uphold rate of around a third means the ombudsman finds in the consumer's favour in a substantial minority of cases, more often than for many mainstream products. Common grounds for complaint about secured loans include affordability assessment, the handling of arrears, and the fees charged. The ombudsman's own guidance on mortgage arrears charges notes that its mortgage rules cover mortgage contracts including first and second charge mortgages18, so lenders handling arrears on a secured loan are subject to the same conduct framework as first charge lenders.
If something goes wrong, the process is fixed. First complain to the lender in writing and give it eight weeks to respond, or use its final response if it replies sooner. If you are not satisfied, take the complaint to the Financial Ombudsman Service, which is free. The page on complaining to the Financial Ombudsman about your mortgage walks through the steps, and the consumer protection guide explains the wider protections that apply to regulated financial products.
Sources36 cited
- Second charge mortgages, consumer priorities Finance & Leasing Association, 2026
- What is secured debt: examples, risks and how it works National Debt Line, 2026
- Secured and unsecured debt consolidation StepChange Debt Charity, 2026
- Application checklist Together, 2026
- CP14/20: consultation on mortgage regulation Financial Conduct Authority, 2014
- Annual complaints data and insight 2025/26 Financial Ombudsman Service, 2025
- Sale by mortgage lender Shelter Cymru, 2026
- Bridging loans explained Which?, 2026
- Further details about total lending to individuals data Bank of England, 2024
- Consolidating debts NI Direct, 2025
- Borrowing money Macmillan Cancer Support, 2022
- Help to Buy: Equity Loan repayment guide GOV.UK, 2024
- Buying a home: things to consider NI Direct, 2026
- Low cost home ownership schemes NI Direct, 2026
- What is a mortgage? Which?, 2026
- Should you use equity release to pay off your mortgage? Which?, 2024
- Personal loans explained Which?, 2026
- Mortgage arrears charges, complaints the ombudsman deals with Financial Ombudsman Service, 2026
- Mortgage term ending StepChange Debt Charity, 2026
- Mortgage types explained Which?, 2026
- Mortgage types explained Which?, 2026
- The Consumer Credit (Exempt Agreements) Order 2001, article 61A legislation.gov.uk, 2022
- The Consumer Credit (Exempt Agreements) Order 2001, article 61A legislation.gov.uk, 2026
- Eight ways to help mortgage prisoners trapped on loans they can't afford Which?, 2020
- Negative equity National Debt Line, 2026
- Mortgage shortfalls National Debt Line, 2026
- Why you should contact your lender if you're worried about your mortgage repayments Which?, 2024
- Help with mortgage payments Business Debt Line, 2026
- Economic abuse via a mortgage Surviving Economic Abuse, 2024
- Can you get Universal Credit if you own a property? Shelter England, 2026
- Debt when someone dies NI Direct, 2026
- Equity release Independent Age, 2026
- Should you consider a drawdown equity release plan? Which?, 2024
- Quarterly complaints data, Q1 2025/26 Financial Ombudsman Service, 2025
- Quarterly complaints data, Q3 2025/26 Financial Ombudsman Service, 2025
- Quarterly complaints data, Q1 2026/27 Financial Ombudsman Service, 2026







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