If you've been turned down for a loan because of a limited or patchy credit history, you may have come across guarantor loans as an option. They're often marketed to people who struggle to get approved for standard credit, offering a way to borrow with the backing of a friend or family member. But guarantor loans come with real risks, both for the person borrowing and the person agreeing to be the guarantor.
This guide explains what a guarantor loan is, how it works in the UK, and the things worth thinking carefully about before you sign anything. It's general information to help you understand the landscape, not a recommendation to take out this type of borrowing.
What Is a Guarantor Loan?
A guarantor loan is a form of borrowing where someone else (the guarantor) agrees to make the repayments if the person who took out the loan (the borrower) can't or doesn't pay. The guarantor is usually a family member or close friend with a stronger credit history or more stable finances than the borrower.
Because the lender has this extra layer of security, guarantor loans are often aimed at people who:
- Have a limited credit history (for example, younger borrowers or those new to the UK)
- Have missed payments in the past and been declined for standard loans
- Are self-employed with irregular income and struggle to prove affordability
The trade-off is that guarantor loans often carry a higher rate of interest than mainstream personal loans, reflecting the higher risk the lender is taking on. Rates and terms vary considerably between providers, so it's worth reading the credit agreement carefully rather than assuming any particular deal will be affordable.
How Guarantor Loans Work in Practice
The Application Process
Typically, the borrower applies for the loan and nominates a guarantor. The lender will assess both the borrower's ability to repay and the guarantor's financial situation, since the guarantor needs to be able to cover repayments if things go wrong. The guarantor is usually asked to be a homeowner or to meet other criteria set by the lender, and will need to sign a separate agreement confirming they understand and accept their responsibility.
The Guarantor's Role
Once the agreement is signed, the guarantor doesn't make any payments as long as the borrower keeps up with theirs. Their role only becomes active if the borrower misses payments or defaults. At that point, the lender can ask the guarantor to step in and pay the outstanding amount, sometimes including missed instalments, interest and any charges that have built up.
This is different to simply "vouching" for someone. A guarantor is entering into a legally binding commitment, and it can affect their own credit file and finances if the borrower falls behind.
What Happens If Repayments Are Missed
If the borrower misses a payment, the lender will usually contact them first. If the situation isn't resolved, the lender can then pursue the guarantor for the money owed. Missed or defaulted payments can appear on both the borrower's and the guarantor's credit files, potentially making it harder for either of them to get credit, a mortgage, or even some types of insurance in future.
Who Might Consider a Guarantor Loan?
People typically look at guarantor loans when they've been declined elsewhere and need to borrow for something specific, such as a car, home improvements, or consolidating existing debts. It's worth pausing here, though: taking on new borrowing to deal with existing debt problems can sometimes make things harder rather than easier, especially if the new loan carries a higher rate of interest.
If you're in this position, it's worth exploring our guide on [budgeting](https://genwel.app) and considering whether restructuring your existing spending, or getting free debt advice, might be a better first step than taking on a guarantor loan.
Key Risks for Borrowers
Higher Overall Cost
Guarantor loans are generally more expensive than standard personal loans because lenders are taking on borrowers who represent a higher risk. Always check the total amount repayable over the full term, not just the monthly payment, before deciding whether the loan is genuinely affordable for you.
Strain on Relationships
If you fall behind on payments and your guarantor is asked to step in, this can put real pressure on a relationship with someone you care about. It's worth having an honest conversation upfront about what would happen if you couldn't pay, rather than assuming it will never come to that.
Impact on Your Credit File
Missed payments on a guarantor loan will be recorded on your credit file in the same way as any other credit product, which can make future borrowing more difficult or expensive.
Risk of Scams
Anyone searching online for loans, including guarantor loans, should be alert to fraudulent websites and unauthorised "lenders" who ask for an upfront fee before releasing funds. This is a well-known type of loan fee fraud. Before applying anywhere, check whether the firm is authorised using the [FCA Firm Checker](https://www.fca.org.uk/consumers/your-rights-financial-services), since in the UK almost all legitimate consumer credit firms must be authorised by the Financial Conduct Authority (FCA). If a firm isn't listed, or asks you to transfer money as part of the process, treat it as a serious warning sign, similar to the tactics used in [money transfer scams](https://www.fca.org.uk/consumers/money-transfer-scams).
Key Risks for Guarantors
Being asked to be someone's guarantor is a big responsibility, and it's worth thinking it through carefully rather than agreeing simply out of loyalty.
You Could Be Liable for the Full Debt
If the borrower can't pay, you may be asked to repay the loan in full, including any interest and charges that have accumulated. This isn't a small favour, it's a genuine financial commitment that could affect your own budget.
It Can Affect Your Own Credit File
If you end up making payments on someone else's behalf, or if the debt goes into default, this can show up on your credit history too, potentially affecting your ability to borrow in future.
It May Limit Your Own Borrowing
Some lenders take existing guarantor commitments into account when assessing your own affordability for a mortgage or loan, since you may need to cover the guaranteed debt if called upon.
You Might Have Limited Ways Out
Depending on the terms of the agreement, it can be difficult to remove yourself as a guarantor once you've signed up, even if your own circumstances change. Read the credit agreement thoroughly before agreeing, and don't be afraid to ask the lender to explain anything you're unsure about in plain English.
Questions to Ask Before Agreeing to a Guarantor Loan
Whether you're the borrower or being asked to be the guarantor, it's worth pausing and asking:
- What is the total amount repayable, including interest, over the full term of the loan?
- What happens, step by step, if a payment is missed?
- Is the lender authorised by the FCA, and have you checked this independently?
- Could the borrower realistically manage the repayments if their income dropped?
- As a guarantor, could you comfortably absorb the repayments without it affecting your own essential spending?
If you can't answer these confidently, it's worth pausing before signing anything.
Alternatives Worth Considering First
Before committing to a guarantor loan, it can help to explore other options, such as:
- Building or rebuilding your credit history gradually with a low-limit credit-builder card, used carefully
- Speaking to your existing lender or a debt charity if the borrowing is to cover existing debts
- Looking at whether a budget review could free up money for the specific goal you're borrowing for, rather than borrowing at all
Our guides on saving and budgeting can be a useful starting point if you'd rather build up funds than take on new borrowing.
Getting Free, Impartial Help
Because guarantor loans involve real financial risk for two people, not just one, it's genuinely worth speaking to a free, impartial service before signing anything. MoneyHelper and Citizens Advice both offer free guidance on borrowing and debt, and a regulated financial adviser can help if your situation is more complex. If you ever feel unhappy with how a lender has treated you, you have the right to complain, and you can find out more about your protections and how to escalate a complaint on the [FCA's consumer rights page](https://www.fca.org.uk/consumers/your-rights-financial-services).
Final Thoughts
Guarantor loans can open the door to borrowing for people who'd otherwise struggle to get approved, but they're not a decision to take lightly on either side. The borrower takes on debt that's likely to cost more than a standard loan, and the guarantor takes on real financial risk to help someone they trust. Talking openly about what would happen if payments were missed, checking the lender is properly authorised, and exploring the alternatives first can all help you make a more informed choice, whichever side of the agreement you're on.
