Understanding your home equity is a fundamental step before beginning any remortgaging process. Equity represents the portion of your property that you truly own, free from debt. Calculating this figure accurately helps determine your potential borrowing power, influences the interest rates available to you, and ensures you make informed financial decisions regarding your property.

TL;DR: Home equity is calculated by subtracting your total outstanding mortgage debt from your property’s current market value. This figure is crucial for remortgaging, as lenders use it to determine your Loan-to-Value (LTV) ratio, which directly impacts the interest rates you qualify for and how much capital you may be able to release.

How Do I Calculate My Home Equity Before Remortgaging?

Calculating your home equity is surprisingly straightforward, relying on two key figures: the current market value of your property and the total amount of outstanding debt secured against it. The resulting figure is the cash value or equity you hold in your property.

The basic formula is:

Property Value – Outstanding Mortgage Debt = Home Equity

While the formula is simple, obtaining the accurate figures required for the calculation demands careful research and professional input.

Step 1: Determining Your Property’s Current Value

Lenders base their risk assessment on the current market value of your property. Relying solely on the price you originally paid is insufficient, especially if years have passed or if significant home improvements have been completed.

The Importance of Accurate Valuation

When you apply for a remortgage, the lender will require a formal valuation, typically conducted by a surveyor they instruct. However, before reaching that stage, you can use several methods to estimate your property’s value:

• Online Estimates: Websites that track property transactions (such as those of UK estate agents or the Land Registry) can provide approximate values based on recent comparable sales in your area. These are helpful starting points but are not guaranteed.
• Local Estate Agents: Obtaining valuations from two or three local estate agents gives you a professional, although non-binding, estimate of what your property might fetch on the open market today.
• Professional Valuation: For the most accurate figure, especially if the property is unique or significantly improved, instructing an independent RICS (Royal Institution of Chartered Surveyors) surveyor may be necessary, although this comes with a cost.

Remember that the lender’s valuation, not your own estimate, will be the figure used in the final remortgaging calculation.

Step 2: Calculating Your Outstanding Mortgage Debt

This is the easy part, provided you contact your existing lender. Your outstanding debt includes the remaining capital balance you owe on your current mortgage. It is vital to get an accurate, up-to-date figure.

Obtaining a Redemption Statement

While your monthly statements show your current balance, they may not include all the charges required to close the loan. The most precise figure for your calculation comes from requesting a Redemption Statement from your current mortgage provider. This document confirms the exact total amount required to pay off your mortgage on a specified future date, including:

• Remaining capital balance.
• Any outstanding interest accrued up to the redemption date.
• Early Repayment Charges (ERCs), if you are ending a fixed-rate or introductory period early.
• Exit fees or administrative charges.

If you have any other debt secured against the property, such as a second charge mortgage or a secured loan, you must include the full outstanding balance of that debt in your total debt figure.

Step 3: Applying the Home Equity Formula

Once you have the two necessary figures—the property value (V) and the total outstanding debt (D)—you can apply the formula:

Equity = V – D

Example Calculation:

If your property is valued at £300,000 and your outstanding mortgage debt (including any fees required for redemption) is £180,000, your home equity is £120,000.

• £300,000 (Value) – £180,000 (Debt) = £120,000 (Equity)

This £120,000 represents the capital you own in the property. The higher this figure, the stronger your position when negotiating a new mortgage deal.

Understanding Loan-to-Value (LTV) for Remortgaging

While the equity amount is important, lenders primarily use the Loan-to-Value (LTV) ratio to assess risk and set interest rates. The LTV compares the size of the outstanding loan to the property’s market value, expressed as a percentage.

How to Calculate LTV

The LTV ratio is calculated by dividing your total debt by the property’s value and multiplying the result by 100.

LTV = (Outstanding Debt / Property Value) x 100

Continuing the previous example:

• (£180,000 Debt / £300,000 Value) x 100 = 60% LTV

Why LTV Matters

Lenders offer the most competitive interest rates to borrowers who have the lowest LTV. This is because a low LTV (meaning high equity) reduces the lender’s risk. If you have an LTV of 60%, you are likely to qualify for significantly better rates than someone with an LTV of 90%. Key LTV brackets often targeted by lenders are 60%, 75%, and 80%.

Using Your Equity When Remortgaging

Once you calculate your home equity before remortgaging, you generally have two options:

1. Standard Remortgage: You secure a new mortgage for the existing outstanding balance (£180,000 in our example) to get a better rate. You maintain your current equity level.
2. Capital Raising Remortgage: You increase the size of the new mortgage to release some of the built-up equity as a lump sum. If you choose to raise capital, your new debt level increases, and your LTV increases accordingly.

Raising capital is often used for significant purposes such as home improvements, consolidating higher-interest debts, or funding a deposit for a buy-to-let property. However, it is crucial to remember that by extracting equity, you are securing a larger loan against your home.

Any funds borrowed through a remortgage are secured against your property. Borrowing secured against your home carries significant risk. Your property may be at risk if repayments are not made. Consequences of default can include legal action, repossession, increased interest rates, and additional charges and fees.

Considering Other Factors: Credit Health

While equity determines how much you can borrow (the LTV), your credit health determines the terms, such as the interest rate and fees, you will be offered. Lenders conduct credit checks to assess your reliability in managing debt. A strong credit history ensures you access the most competitive deals available for your calculated LTV bracket.

If you haven’t checked your report recently, doing so before applying is highly recommended so you can address any errors or inaccuracies:

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Navigating Potential Risks and Market Fluctuations

It is important to acknowledge that property values are subject to market changes. If property prices fall after you purchase your home or increase your mortgage debt, you could potentially experience negative equity, which occurs when the outstanding debt exceeds the property’s value. Lenders are typically unwilling to remortgage properties in negative equity, potentially leaving you trapped with your existing provider’s Standard Variable Rate (SVR).

Furthermore, when calculating the financial benefit of remortgaging, always factor in the associated costs, such as arrangement fees, valuation fees, and legal fees. Sometimes, a slightly higher interest rate with lower upfront costs may prove more cost-effective overall.

If you are considering using a complex secured lending solution, such as a bridging loan, to facilitate a property purchase before remortgaging into a standard mortgage, it is vital to understand the payment structure. Most bridging loans roll up interest rather than requiring monthly payments, meaning the debt grows rapidly, increasing the risk. For more information on responsible borrowing and secured loans, you can consult resources from the UK Government’s MoneyHelper service.

It is always recommended to seek independent professional mortgage advice before committing to any secured loan product.

People also asked

What happens if I have negative equity?

If you have negative equity, it means your outstanding mortgage debt is higher than your property’s current market value. This situation severely restricts your ability to remortgage or switch lenders, as mainstream lenders are generally unwilling to accept the risk associated with lending more than the property is worth.

Can I release 100% of my equity when remortgaging?

No, lenders will not allow you to release 100% of your equity. Lenders need a safety margin to protect themselves against market dips. Most high-street lenders offer a maximum Loan-to-Value (LTV) of 85% or 90%. Therefore, you must retain at least 10% to 15% equity in your property.

Do home improvements count towards equity calculation?

Yes, significant home improvements (such as extensions, loft conversions, or major refurbishments) will increase your property’s value, assuming they meet local market demand. However, the increase in equity only counts once the property has been officially re-valued by the lender’s surveyor post-improvement.

Does a secured loan count as part of my outstanding debt?

Yes. Any financial product that uses your property as collateral, including first-charge mortgages, second-charge mortgages, and secured loans, must be included when calculating your total outstanding debt figure for the equity calculation.

How often should I check my property valuation?

While professional valuations are typically only required when transacting, reviewing online estimates from local estate agents annually is wise. This practice helps you track capital growth and potential equity build-up, ensuring you are prepared when your current mortgage deal ends.

Is LTV based on the original purchase price or current value?

LTV is always calculated based on the property’s current market value, determined by the lender’s independent valuation at the time of the remortgage application, not the price you originally paid.