The Truth About Guarantor Car Finance — Is It Worth It?

Updated
Nov 4, 2025 8:41 PM
Written by Nathan Cafearo
Guarantor car finance helps those with poor credit secure car loans, but it comes with responsibilities and risks for both borrower and guarantor. Learn if it’s the right solution.

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Understanding Guarantor Car Finance in the UK

Securing car finance can feel out of reach if your credit score is less than perfect. Guarantor car finance offers a lifeline for many UK consumers, but is it truly the right path? Here’s what you need to know before making your decision.

Who Should Consider Guarantor Car Finance?

If you have a limited or poor credit history, or you’re struggling to get approved for traditional car finance, this option may be for you. It’s also suitable for younger buyers who haven’t yet built up a financial track record or those with recent financial difficulties.

Key Concepts and Terminology

  • Guarantor: An individual—often a friend or family member—who agrees to make repayments if you can’t.

  • Principal Borrower: The person taking out the car finance.

  • APR (Annual Percentage Rate): The total cost of borrowing, including interest and fees, shown as a percentage.

  • Credit Score: A numerical representation of your creditworthiness.

  • Default: Failure to make agreed payments, which can impact both borrower and guarantor credit files.

Guarantor car finance is essentially a loan where a third party backs your application. Lenders see this as lower risk, so they may be more likely to approve your finance, even if your own credit history is patchy. However, both parties must understand the implications before signing up.

Guarantor Car Finance Options

Several UK lenders specialise in guarantor car finance. Options include:

  • Hire Purchase (HP): You make fixed payments; ownership transfers to you after the final payment.

  • Personal Contract Purchase (PCP): Lower monthly repayments, with a final balloon payment if you want to keep the car.

  • Personal Loans: Funds provided directly to you, with the car as collateral.

Lenders may offer varying terms, so compare APR, deposit requirements, and length of agreement. Some lenders allow the guarantor to be a homeowner, increasing your approval chances, while others accept tenants. Always read the fine print on early repayment charges, missed payment penalties, and what happens if you or your guarantor cannot pay.

Costs, Impact, and Risks

While guarantor car finance can improve access, there are notable risks. Interest rates may be higher than standard finance, reflecting the lender’s perceived risk. Both the borrower and the guarantor’s credit files are at stake if payments are missed. The guarantor becomes legally responsible for repayments if you default, with potential court action and damaged credit ratings as consequences.

On the upside, if all payments are made on time, it can help rebuild your credit profile. However, missed payments can strain personal relationships and financial stability for both parties.

Eligibility, Requirements, and Conditions

  • Borrower: Must be over 18, a UK resident, and able to demonstrate income or affordability.

  • Guarantor: Typically aged 21–75, with a good credit history and stable income. Homeownership is often preferred but not always required.

  • Both: Must provide proof of identity, address, and income.

Lenders will perform credit checks on both parties. The guarantor cannot be financially linked to the borrower (such as a spouse) with some providers.

How Guarantor Car Finance Works: Step-by-Step

  1. Assess your eligibility and affordability.

  2. Find a suitable guarantor willing to support you.

  3. Apply with your chosen lender.

  4. Both parties provide documents and undergo credit checks.

  5. Lender reviews and approves the application.

  6. Sign the agreement, outlining responsibilities.

  7. Dealer receives payment; you collect your car.

  8. Make monthly payments as agreed.

Pros and Cons to Consider

Pros:

  • Access to car finance with poor or limited credit.

  • Can help rebuild your credit score.

  • Fixed monthly payments aid budgeting.

Cons:

  • Higher interest rates than standard loans.

  • Puts the guarantor’s credit at risk.

  • May strain personal relationships if problems arise.

  • Potential fees for early repayment or missed payments.

Things to Watch Out For Before You Decide

Carefully consider the responsibilities for both parties. The guarantor must be fully aware that they are legally liable for repayments if you default. Discuss the arrangement openly—miscommunication can lead to damaged relationships. Double-check all terms and conditions, including what happens in cases of illness, redundancy, or unexpected financial hardship. Make sure you both can comfortably afford the repayments.

Alternative Finance Options

If guarantor car finance feels risky, consider these alternatives:

  • Credit Builder Car Finance: Designed for those with poor credit but no guarantor needed.

  • Secured Loans: Use other assets as collateral, but beware of repossession risks.

  • Joint Applications: Apply with another person (not a guarantor) to boost approval chances.

  • Saving Up: Delay purchase until you have a larger deposit or improve your credit rating.

Each alternative has its own risks and benefits—compare all options carefully.

Frequently Asked Questions

1. Can anyone be my guarantor? No, lenders generally require the guarantor to have a good credit history, stable income, and sometimes homeownership. They usually can’t be financially linked to you.

2. What happens if my guarantor refuses to pay? If you default and your guarantor also cannot pay, both credit ratings will suffer and legal action may follow.

3. Will being a guarantor affect their ability to borrow? Yes, taking on this responsibility could affect your guarantor’s own credit capacity and borrowing potential.

4. Can I switch guarantors during the agreement? Not typically. Most lenders require a new application if you need to change guarantors.

5. Can I pay off the loan early? Usually, but check for any early repayment charges in the agreement.

6. Does this help my credit score? If payments are made on time, it can have a positive effect. Missed payments will, however, harm both parties’ credit records.

Next Steps

If you’re considering guarantor car finance, start by reviewing your credit file and assessing your budget. Speak openly with potential guarantors about the commitment. Compare offers from several lenders, checking interest rates, fees, and terms. Seek independent financial advice if you have doubts, and never rush into an agreement you don’t fully understand.

Disclaimer

This article is for general information only and does not constitute financial advice. Always consult a qualified advisor before making decisions about car finance. Terms and lender requirements may vary.

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