Remortgage for a Car

How Remortgaging to Buy a Car Works

Remortgaging to buy a car follows the same process as any other remortgage with additional borrowing. You replace your existing mortgage with a new, larger one, and the difference between the old balance and the new one is released to you as a lump sum. You then use this cash to purchase your vehicle outright.

For example, if you currently owe £160,000 on your mortgage and remortgage to £180,000, the extra £20,000 is paid into your bank account. You can then buy a car without needing car finance, hire purchase, or personal contract purchase (PCP) agreements.

Lenders accept vehicle purchases as a legitimate reason for releasing equity, and the process is no different from remortgaging for any other purpose. You will need to declare that the funds are for a car purchase, but this will not cause any issues with your application.

The appeal of this approach lies in the lower interest rate. Mortgage rates are typically 2-4% lower than car finance rates, which translates into lower monthly payments. However, this comparison can be misleading because it ignores the difference in repayment periods. A car finance deal typically lasts three to five years, while the additional mortgage borrowing may be repaid over 15, 20 or even 25 years.

Understanding this distinction is essential for making an informed decision. The lower monthly payment does not necessarily mean lower total cost.

The True Cost: Mortgage vs Car Finance

Comparing the total cost of different borrowing options is the most important step before deciding how to fund your car. The headline interest rate is only part of the story.

Consider a £15,000 car funded through different borrowing methods:

Option 1: Added to mortgage at 4.5% over 20 years

• Monthly increase: approximately £95
• Total repaid: approximately £22,800
• Total interest: approximately £7,800

Option 2: Personal loan at 6.5% over 5 years

• Monthly payment: approximately £294
• Total repaid: approximately £17,640
• Total interest: approximately £2,640

Option 3: Hire purchase at 7.9% over 4 years

• Monthly payment: approximately £365
• Total repaid: approximately £17,520
• Total interest: approximately £2,520

Despite the mortgage having the lowest interest rate, the total cost is by far the highest because the borrowing is spread over such a long period. You would pay almost three times as much interest through the mortgage compared with a personal loan or hire purchase.

There is also the depreciation factor to consider. A car loses value rapidly, often losing 15-35% of its value in the first year and up to 60% over three years. With mortgage borrowing, you could still be paying off the car long after it has been scrapped or sold at a fraction of the original price.

These figures make it clear why most financial advisers recommend shorter-term borrowing for depreciating assets like vehicles.

When Remortgaging for a Car Might Make Sense

Despite the higher total cost, there are limited circumstances where remortgaging to buy a car could be a reasonable option.

When you are already remortgaging: If you are remortgaging for another reason, such as to secure a better rate at the end of your current deal, adding a relatively small amount for a car purchase may be practical. The additional cost is marginal when viewed alongside the overall transaction, and you avoid the hassle and fees of arranging separate finance.

When affordability is the primary concern: If your budget cannot stretch to the higher monthly payments of a personal loan or car finance but you need a reliable vehicle for work or essential travel, the lower monthly payments of mortgage borrowing may be the only realistic option. In this case, consider borrowing the minimum amount necessary for a reliable vehicle rather than overspending.

When other borrowing is not available: If your credit history limits your access to competitive car finance or personal loan rates, the lower rate available through remortgaging may genuinely save money compared with high-interest subprime lending. At very high personal loan rates, the total cost comparison can shift in favour of mortgage borrowing.

When you plan to overpay: If you intend to make overpayments on your mortgage to repay the car element within a few years, you can benefit from the lower mortgage rate without the long-term cost penalty. This requires discipline but can be an effective strategy.

Even in these situations, it is important to explore all alternatives and understand the full implications before proceeding. A qualified mortgage adviser can help you assess whether remortgaging is genuinely the best option for your circumstances.

Risks of Using Your Home to Buy a Car

The most significant risk of remortgaging for a car is that you are converting an unsecured purchase into debt secured against your home. If your circumstances change and you cannot maintain the increased mortgage payments, your property could be at risk of repossession.

With standard car finance, the worst-case scenario is losing the vehicle. With mortgage borrowing, the worst-case scenario is losing your home. This is a fundamentally different risk profile that should not be underestimated.

Other risks to consider include:

• Negative equity in the car: A car depreciates rapidly while your mortgage debt reduces slowly. Within a few years, the car may be worth a fraction of what you owe on it through your mortgage. If you sell the car, you will not recover enough to clear the additional mortgage borrowing.
• Reduced future flexibility: Increasing your mortgage reduces your available equity, which could limit your ability to borrow for more important needs in the future, such as home improvements, emergency expenses, or helping family members.
• Extended debt: Taking on additional mortgage debt for a depreciating asset extends your total debt burden. If you are trying to become mortgage-free by a certain age, adding borrowing for a car pushes that goal further away.
• Interest rate risk: If you are on a variable or tracker rate, or when your fixed rate ends, rising interest rates will increase the cost of the additional borrowing. Car finance rates, by contrast, are usually fixed for the duration of the agreement.
• Opportunity cost: The equity used to buy a car could have been used for something that adds value, such as home improvements that increase your property's worth. Once the equity is tied up in a depreciating car, that opportunity is lost.

These risks do not make remortgaging for a car inherently wrong, but they highlight why it should be a carefully considered decision rather than a default choice based purely on monthly payment comparisons.

Alternative Ways to Fund a Car Purchase

Before committing to remortgaging for a car, consider the full range of alternatives available to UK consumers. One of these may offer a better balance of cost, convenience and risk.

Personal loan: Unsecured personal loans are one of the most straightforward ways to fund a car. Interest rates are competitive for borrowers with good credit, repayment terms are typically one to seven years, and your home is not at risk. For amounts between £5,000 and £25,000, this is often the most cost-effective option.

Hire purchase (HP): HP agreements let you spread the cost of a car over typically three to five years. You pay a deposit and fixed monthly instalments, and own the car once the final payment is made. Rates can be competitive, especially through manufacturer-backed finance deals.

Personal contract purchase (PCP): PCP offers lower monthly payments than HP because you are not paying off the full value of the car during the agreement. At the end, you can return the car, pay a balloon payment to own it, or part-exchange for a new one. This suits drivers who change cars regularly but means you do not build equity in the vehicle.

Savings: Buying a car outright with savings is the most cost-effective option, as you pay no interest at all. If you can delay your purchase and save towards it, even partially, you will reduce the amount you need to borrow.

Salary sacrifice: Some employers offer car schemes through salary sacrifice, which can provide tax advantages, particularly for electric and low-emission vehicles. Check whether your employer offers this benefit.

Leasing: Personal contract hire, or leasing, involves fixed monthly payments for the use of a car over a set period, typically two to four years. You never own the vehicle, but the payments include maintenance and there are no depreciation concerns. This can suit drivers who want predictable motoring costs.

Comparing the total cost, monthly payment, and risk profile of each option will help you identify the best approach for your specific situation.

Making the Right Decision for Your Situation

The decision of how to fund a car purchase depends on your individual financial circumstances, priorities, and attitudes towards risk and debt.

Ask yourself these questions before deciding:

• How much car do I actually need? Could a less expensive vehicle meet my requirements?
• Can I afford the monthly payments of a personal loan or car finance agreement?
• Am I already planning to remortgage for another reason?
• How would increased mortgage payments affect my budget if interest rates rise?
• Am I comfortable securing a depreciating asset against my home?
• Do I have savings I could use for part or all of the purchase?

If, after careful consideration, remortgaging is the most practical option for your situation, take steps to minimise the long-term cost. Borrow only what you need for a reliable vehicle rather than the maximum available. Consider making overpayments to clear the car-related borrowing faster than the standard mortgage term. And make sure you can comfortably afford the increased payments, even if interest rates rise.

Getting advice from an FCA-regulated mortgage adviser is always worthwhile when considering a remortgage. They can compare the total costs of different approaches, search the market for the best deals, and ensure you make a fully informed decision. A good adviser will be honest about whether remortgaging is genuinely the right option or whether an alternative would serve you better.

Whatever route you choose, the goal is to get the car you need at a cost you can comfortably manage, without putting your home or long-term financial health at unnecessary risk.