Why are secured loan rates different from mortgage rates?
For someone who already has a mortgage, a homeowner loan will usually be a second charge mortgage. The original mortgage continues, with a separate agreement for the additional borrowing.
The first mortgage lender normally has priority over the second lender if the property is sold to recover the debts. That difference in security helps explain why second charge borrowing can be priced differently.2 The FCA notes that second charge mortgage rates tend to be higher than first charge rates.3
Keeping an existing mortgage deal may still be relevant when comparing options, especially if repaying it early would involve a charge. Compare the combined cost of retaining that mortgage and taking a secured loan with the cost of replacing it.
What affects your secured loan interest rate?
Your credit history
Lenders look at how you have managed borrowing. Missed payments, defaults and court judgments can affect which lenders will consider an application and the terms available.
The detail matters. Be ready to explain when a problem happened, whether it has been resolved and how payments have been managed since. Accurate information helps the adviser assess the application against relevant criteria.
The score shown by a credit reference agency is a guide, rather than a universal lending decision. Lenders can use their own assessment, drawing on your credit report, application information and other records. A particular score does not guarantee a particular interest rate.4
Your combined loan to value
Loan to value, usually shortened to LTV, describes borrowing as a percentage of the property's value. For a second charge application, consider the existing mortgage and proposed secured borrowing together.
For example, assume a home is valued at £300,000, with an existing mortgage balance of £180,000 and a proposed secured loan balance of £45,000. With no other secured borrowing or fees added, the combined balance is £225,000. Dividing that by £300,000 gives a combined LTV of 75%.
Looking only at the new £45,000 loan would produce 15%, which leaves out the first mortgage and misrepresents the total borrowing against the property.
A lower combined LTV leaves more equity behind the borrowing. That can affect the lender's assessment of risk and the products available, although it does not guarantee a cheaper offer.1, 2
The lender's property valuation
An online estimate or your own view of the property's value may differ from the valuation accepted by the lender.
In the same example, a valuation of £280,000 would put the £225,000 combined balance at approximately 80.4% LTV. Nothing has changed about the requested borrowing, but its relationship to the property's value has changed.
Ask which valuation and mortgage balance have been used, and whether financed fees are included. A quote based on estimated information may need to be revised once those details are confirmed. These figures illustrate the calculation, not a lender's product limits.
Your income and financial commitments
Lenders must assess whether the proposed repayments are affordable. They consider income, regular expenditure, existing credit commitments and relevant future changes. Home equity does not replace an affordability assessment.5
A higher income does not automatically produce a lower rate. Substantial commitments can reduce what is affordable, while the way income is earned and evidenced can affect lender choice.
If you work for yourself or receive variable earnings, ask what evidence is needed and how that income will be assessed. Being employed, self employed or a contractor is only part of the application; lenders' criteria differ.6
The amount and repayment term
The requested amount and term can affect the products available and how a lender prices the borrowing.1 There is no reliable rule that borrowing more, or choosing a longer term, will produce a better deal.
A longer term can reduce the monthly repayment while increasing the overall interest cost. Ask for an affordable shorter term comparison as well.
Keep the amount tied to the purpose of borrowing. If a different loan size appears to qualify for a lower rate, compare the total amount owed and all costs before considering it. Borrowing extra creates an additional repayment obligation.
Whether the rate is fixed or variable
A fixed rate stays the same for an agreed period. That period may be shorter than the loan term, so check what rate applies afterwards and whether an early repayment charge applies.
A variable rate can change under the agreement. Some products follow a stated reference rate, while others use a rate set by the lender. Read the terms to understand what can trigger a change.
Compare the length of any fixed period as well as the starting rate. A product fixed for two years provides a different period of payment certainty from one fixed for five years. Neither arrangement is automatically the cheaper choice.7
Wider interest rates and lender pricing
The Bank of England's Bank Rate influences borrowing costs, but lenders also consider other factors, including the risk of nonpayment and the lending term. A secured loan rate is therefore not simply Bank Rate with the same margin added for everyone.1
Each lender also has its own products and acceptance criteria. A lender that accepts a particular application may price it differently from another. Asking for a comparison matters even when your personal circumstances have not changed.6
Why can an advertised rate differ from your quote?
An advertised rate describes an available product or an example. It does not establish the rate you personally qualify for. Read the conditions and check which borrowing amounts, property circumstances and applicant criteria it assumes.
A personalised quote is more useful, but ask what still needs to be checked. If income, credit information, the property valuation or the amount requested changes during an application, the options may change too.
Ask how long the quote remains valid and at what stage the rate is confirmed. An initial eligibility result should not be treated as a completed lending decision.
Interest rate, APRC and monthly repayment explained
These figures answer different questions:
| Figure | What it tells you |
|---|---|
| Interest rate | The rate used to calculate interest on the borrowing. |
| APRC | The annual cost of the mortgage over its term, including relevant charges, under specified assumptions. |
| Monthly repayment | The scheduled payment, based on the balance, rate and repayment arrangement. |
| Total amount repayable | The overall repayments and included costs shown in the illustration, subject to its assumptions. |
APRC means annual percentage rate of charge. It helps compare mortgage costs because relevant fees are included. However, it is calculated using prescribed assumptions and is not a forecast of future variable rates.8
Request the personalised mortgage illustration, often called an ESIS, or European Standardised Information Sheet. Check the payment schedule, fees, total amount repayable and what happens after an introductory rate ends.9
A smaller monthly payment can result from spreading borrowing over more years. It should not be treated as proof of a lower interest rate or a lower overall cost.
How fees can outweigh a lower rate
Broker fees, lender fees and valuation or legal costs may apply. Establish the actual charges for your case, when they are payable and whether they are refundable.
A fee added to the loan increases the balance and can attract interest. A fee deducted from the advance reduces the money available for your intended purpose. Compare the cash you receive as well as the amount borrowed.10
A product with a lower interest rate and a larger fee can cost more than another offer, particularly if you repay it early. Check any early repayment charge and the conditions for making overpayments.7
If you expect to clear the loan before its full term, ask for a comparison over that period. Include payments, fees, the balance still outstanding and any applicable settlement costs. Looking only at instalments already paid would miss the debt still to be repaid.
What can you do before requesting quotes?
- Check your credit reports for errors and ask for inaccuracies to be corrected. Checking your own report does not harm your credit score.11
- Gather current mortgage balances, income evidence and an accurate household budget.
- Decide how much money you actually need after fees, and what monthly payment remains manageable.
- Ask whether an initial enquiry uses a soft credit search and when a hard search would happen. Multiple hard searches within a short period can affect later applications.11
- Ask which lenders and products the adviser can consider, what the service costs and why the recommendation fits your circumstances.9
These steps can improve the accuracy of a comparison. They cannot guarantee approval or a lower rate. If the repayments look difficult, revisit the amount, timing or funding method before committing.
Will a better credit history reduce an existing loan rate?
An improvement in your credit history does not automatically change an existing agreement. The rate follows the terms you accepted.
If you want to change products or refinance, a new assessment and additional costs may apply. Check the existing agreement and compare any early repayment charge and new fees before deciding whether a lower offered rate produces a worthwhile saving.12
Compare the funding method as well as the rate
A further advance from your existing mortgage lender may be another option. It is additional borrowing secured against your home, usually at a separate rate from your original mortgage.13
Remortgaging can raise additional funds while replacing the existing mortgage. Compare the cost across the whole balance, including fees and any charge for leaving the current deal.12
An unsecured personal loan may also be worth considering for an appropriate amount. It does not take security over your home under the loan agreement, although missed repayments still have serious consequences. Compare the actual terms and affordability.14
Habitat Loans introduces customers to Loans Warehouse, where a qualified broker can assess secured borrowing options. Take the comparison beyond the headline rate: ask what you will receive, what you will owe, how payments could change and why the recommendation suits your needs. Eligibility and suitability both matter.3
For loans secured against your home. Introduction to Loans Warehouse. Subject to status and lender criteria. Broker and lender fees may apply.
Your home may be repossessed if you do not keep up repayments on a mortgage or any other debt secured on it.
References
Sources checked on 16 September 2026. No current interest rate, product limit or representative borrowing example is quoted. The LTV calculations are original illustrations using assumed balances and property values.
- Bank of England: What are interest rates?
- MoneyHelper: Second mortgages
- FCA: Second charge mortgages and consumer outcomes
- Experian: What is a credit score?
- FCA Handbook: Responsible lending and financing
- Pepper Money: Second charge mortgage criteria and second charge mortgage products
- MoneyHelper: Understanding mortgages and interest rates
- FCA: APRC calculations
- MoneyHelper: Choosing a mortgage and getting advice
- MoneyHelper: Mortgage fees and costs
- Experian: Soft and hard credit checks
- MoneyHelper: Remortgaging to cut costs
- MoneyHelper: Getting a further advance
- MoneyHelper: Personal loans

