Mortgage guidance

Borrowing additional funds

A practical guide to further advances, remortgaging and secured borrowing.

Borrowing against your home can help fund important plans, but it also increases the amount secured on the property.

Before proceeding, it is important to understand why the funds are needed, whether borrowing is appropriate, the alternatives available, and the effect on monthly payments and total cost.

The short answer

There are three common mortgage-based routes: a further advance from your existing lender, a remortgage with additional borrowing, or a second charge mortgage. None is automatically better. The right route depends on your existing mortgage, purpose, affordability, costs, future plans and the alternatives available.

At a glance

Existing lender

A further advance sits alongside your current mortgage.

New first mortgage

A remortgage replaces the existing mortgage and includes the extra funds.

Separate secured loan

A second charge mortgage is a separate loan secured on the same property.

Important

Having equity in your property does not guarantee that more borrowing will be available. A lender will also assess affordability, credit history, the property, the borrowing purpose and its own criteria.

Understanding equity and loan-to-value

Equity is broadly the difference between the property's current value and the borrowing secured against it.

For example, if a property is valued at £300,000 and the existing mortgage is £180,000, the apparent equity is £120,000. This does not mean that £120,000 can be borrowed. The lender will decide which property value it accepts, the maximum loan-to-value it permits, and how much is affordable.

Loan-to-value, usually shortened to LTV, expresses secured borrowing as a percentage of the property value accepted by the lender. Where more than one loan is secured on the property, the lender may consider the combined loan-to-value, which reflects the total secured borrowing.

The three main routes

Further advance

A further advance is additional borrowing from your existing mortgage lender, usually secured against the same property and held alongside the main mortgage.

The further advance may have a different interest rate, product period, repayment basis and end date from the main mortgage.

Potential advantages

  • The existing mortgage can remain in place.
  • Administration may be more straightforward than changing lender.
  • Legal work may be limited, depending on the lender and circumstances.
  • It may be suitable where the existing mortgage remains competitive or has an early repayment charge.

Points to consider

  • Product choice is limited to the existing lender.
  • A new affordability and credit assessment may apply.
  • The additional borrowing may be priced differently from the main mortgage.
  • Separate product periods can make a future remortgage more complicated.
  • Fees, minimum borrowing amounts and permitted purposes vary.

Remortgage with additional borrowing

This route replaces the existing mortgage with a larger mortgage, usually from a different lender. Part of the new borrowing repays the current mortgage and the balance provides the additional funds.

Potential advantages

  • Provides access to a wider range of lenders and products than the existing lender alone.
  • Allows the whole mortgage structure, rate and term to be reviewed together.
  • May align all borrowing under one lender and product structure.

Points to consider

  • A full mortgage application and affordability assessment will normally be required.
  • An early repayment charge may apply to the existing mortgage.
  • Product, valuation, legal and adviser fees may apply.
  • Replacing a competitive existing rate could increase the cost of the whole mortgage, not only the additional borrowing.
  • Completion timescales and legal requirements vary.

Second charge mortgage

A second charge mortgage is a separate loan secured on the property in addition to the existing first mortgage. The first mortgage remains in place, and the second lender ranks behind the first lender in repayment priority.

Potential advantages

  • The existing first mortgage and its product can remain unchanged.
  • It may be considered where replacing the first mortgage would trigger a significant charge or worsen the pricing of the main loan.
  • It can provide an alternative when the existing lender cannot meet the borrowing need.

Points to consider

  • There will be a separate payment, rate, term and set of conditions.
  • Rates and fees can be higher than on a first charge mortgage, although this is not universal.
  • The combined cost of both mortgages must be assessed.
  • The first lender's consent or a deed of priority may be required.
  • Failure to maintain payments can place the property at risk.

Comparing the routes

ConsiderationFurther advanceRemortgage with additional borrowingSecond charge mortgage
Existing first mortgageRemains in place.Replaced.Remains in place.
LenderExisting lender.Usually a new lender.A separate lender.
Product choiceExisting lender's range.Wider first-charge market available to the adviser.Specialist second-charge market available to the adviser.
AssessmentLender-specific affordability, credit and property checks.Full application and assessment.Full second-charge assessment.
Main considerationCost and structure of the extra borrowing.Cost of replacing the whole mortgage.Cost and complexity of running two secured loans.

How much could be available?

The amount available is not determined by equity alone. A lender may consider:

  • The property value it accepts.
  • Existing mortgage and secured-loan balances.
  • Maximum permitted LTV or combined LTV.
  • Income and how it is evidenced.
  • Household expenditure and credit commitments.
  • Credit history.
  • Mortgage term and repayment method.
  • Age and retirement plans.
  • Purpose of the borrowing.
  • Property type and condition.
  • The lender's current criteria.

The lowest limit produced by these considerations may determine the amount offered. An initial calculator result is not a guarantee of lending.

Common reasons for borrowing more

Additional borrowing may be considered for:

  • Home improvements, repairs or adaptations.
  • An extension or renovation.
  • Buying out another owner's interest, subject to legal advice.
  • Supporting a property purchase or family member.
  • Education costs or other significant expenditure.
  • Purchasing another property.
  • Business purposes where permitted.
  • Debt consolidation where appropriate.

The lender will normally need to understand the purpose and may ask for supporting information or impose restrictions.

Debt consolidation needs particular care

Using mortgage borrowing to repay credit cards, personal loans or other debts may reduce the immediate monthly payment, but this does not necessarily reduce the overall cost.

Potential consequences include:

  • Repaying short-term debt over a much longer period.
  • Paying more interest overall.
  • Turning unsecured borrowing into debt secured against the home.
  • Incurring early repayment charges, fees or new product restrictions.
  • Rebuilding unsecured balances after consolidation, resulting in more debt.

Alternatives should be considered before proceeding. Where debt repayments are already difficult, free independent debt advice may be more appropriate than taking further secured borrowing.

Affordability and financial resilience

A lender's assessment is an important safeguard, but the maximum available is not necessarily the right amount to borrow.

Consider:

  • The comfortable monthly payment, not only the maximum permitted loan.
  • Whether payments could increase.
  • Changes to income, employment or household expenditure.
  • Maternity, parental leave, retirement or reduced working hours.
  • Emergency savings remaining after the transaction.
  • How the borrowing affects future plans and financial flexibility.

MMPE guidance

Start with the purpose and the household budget. Borrowing should solve a clearly understood need without creating an unsuitable level of long-term cost or risk.

Term and repayment method

A longer term can reduce the monthly payment but usually increases the total interest paid. A shorter term normally increases the payment but can reduce the overall interest cost.

Additional borrowing may not need to use the same term as the existing mortgage. Different end dates can be useful, but they can also make future restructuring more complicated.

Interest-only borrowing leaves the capital outstanding and requires an acceptable repayment strategy. Availability and criteria are lender-specific.

Costs and features to compare

AreaWhat to check
Interest rateWhether fixed or variable, the initial payment and how it could change.
Product or arrangement feeWhether paid upfront or added to the loan. Interest is normally charged on a fee added to borrowing.
Early repayment chargeWhether it applies to the existing mortgage or new borrowing, and when it reduces or ends.
ValuationWhether required, included or payable separately.
Legal workWhether required and whether any assisted service has limitations.
Adviser feeThe amount, payment point and service covered.
Mortgage termThe effect on monthly payment and total interest.
OverpaymentsAllowances, restrictions and possible charges.
Future flexibilityMoving home, repaying early, changing lender or borrowing again.

Compare the overall cost and practical consequences, not only the headline rate or monthly payment.

Alternatives to borrowing against the home

Depending on the purpose and circumstances, alternatives may include:

  • Using savings while retaining an appropriate emergency reserve.
  • Delaying or reducing the planned expenditure.
  • An unsecured personal loan or purchase finance.
  • Selling other assets.
  • A family arrangement supported by legal advice.
  • Downsizing or selling the property.
  • Free debt advice where the purpose is to manage financial difficulty.

An unsecured loan may carry a higher interest rate, but a shorter term and lower fees can sometimes produce a lower total cost. It does not place a legal charge over the home.

Later-life lending and equity release

Later-life borrowing can include standard mortgages extending into retirement, retirement interest-only mortgages and equity-release products such as lifetime mortgages.

A lifetime mortgage is a specialist form of borrowing secured against the home. Payment options vary. Any unpaid interest can be added to the loan, causing the balance to grow through compound interest. The arrangement can reduce the estate available to beneficiaries and affect means-tested benefits, tax circumstances and future choices.

The amount available depends on the provider's criteria and can reflect age, property value, health and product features. Equity release is a significant long-term decision requiring specialist regulated advice and consideration of alternatives.

Preparing for an additional borrowing review

Have the following information available:

  • Current mortgage statement and balance.
  • Current rate, payment, repayment method and remaining term.
  • Product end date and early repayment charge.
  • Estimated property value.
  • Amount required and a clear breakdown of the purpose.
  • Income and expenditure information.
  • Details of all credit commitments.
  • Expected changes to employment, family circumstances or retirement plans.
  • Quotes or estimates for works where relevant.
  • The preferred timescale.

Questions to ask before proceeding

  • Why are the funds needed?
  • Is borrowing the most suitable solution?
  • What alternatives have been considered?
  • What will the new monthly commitment be?
  • What is the expected total cost?
  • Am I replacing a competitive existing mortgage?
  • Could the term extend into retirement?
  • What happens if income falls or costs increase?
  • Will sufficient emergency savings remain?
  • Are there early repayment charges or restrictions?
  • How will this affect plans to move or remortgage?
  • If consolidating debt, how will new unsecured borrowing be avoided?

MMPE’s approach

At My Mortgage & Protection Experts, we do not begin by asking only how much you can borrow. We first seek to understand why the funds are needed and whether borrowing against the home is appropriate.

We will:

  • Understand the objective, amount and timescale.
  • Review affordability and financial resilience.
  • Consider alternatives and the effect of not borrowing.
  • Compare appropriate routes from the market available to us.
  • Explain the costs, risks, trade-offs and restrictions.
  • Consider the existing mortgage and any early repayment charge.
  • Recommend a suitable solution where appropriate.
  • Support the application through to completion.

The most suitable option is not necessarily the one with the lowest rate or monthly payment. It should address the need, remain affordable and provide an appropriate balance of cost, flexibility and risk.

Glossary

TermPlain-English meaning
EquityThe value of the property less mortgages and other secured borrowing.
Loan-to-valueSecured borrowing expressed as a percentage of the property value accepted by the lender.
Combined loan-to-valueTotal borrowing secured against the property expressed as a percentage of its accepted value.
Further advanceAdditional borrowing from the existing mortgage lender, secured against the same property.
RemortgageReplacing the current mortgage, often with another lender.
Second charge mortgageA separate loan secured against a property that ranks behind the first mortgage.
Deed of priorityA legal agreement that records the order in which secured lenders have priority.
Debt consolidationReplacing several debts with new borrowing. This may change the term, security and total cost.
Lifetime mortgageA specialist mortgage generally intended to run for the borrower's lifetime, with repayment usually linked to death or permanent movement into long-term care.
Early repayment chargeA charge that may apply if borrowing is repaid or changed during a specified period.

Important information

This guide provides general educational information and does not constitute personal mortgage, equity-release, legal, debt or tax advice. Products, rates, fees and lender criteria can change. A recommendation can only be made following a full assessment of your circumstances.

Your home may be repossessed if you do not keep up repayments on your mortgage or any other debt secured on it.

Think carefully before securing other debts against your home. Consolidating debt may reduce monthly outgoings but can increase the total amount repaid.

My Mortgage & Protection Experts Ltd is an Appointed Representative of King Mortgages Ltd, which is authorised and regulated by the Financial Conduct Authority. My Mortgage & Protection Experts Ltd: FCA reference 937076. King Mortgages Ltd: FCA reference 803561.

This guide is for informational purposes only and was accurate at the date of publication. Please seek personalised advice before making financial decisions.

Want to know more?

Leave a few details and we'll come back to you with tailored advice based on the guide you've just read.

Want to know more →