How a guarantor loan default affects your credit file

A guarantor loan default is recorded on both credit files: the borrower's and yours. The lender agrees to lend the money on the basis that the guarantor can repay the loan in full, so when the borrower stops paying, the missed payments and any default can be added to your credit report as well as theirs¹.

Being a guarantor will not affect your credit rating as long as the borrower pays back the debt on time. But payments made on their behalf are added to your credit history and could reduce your credit score, and a default stays on a credit file for six years³.

The practical point is that the debt is not in your name, yet the consequence can land on your file. That is why the timing matters: what is reported, when, and what can be removed if the loan should never have been given in the first place.

A guarantor loan default is recorded on both credit files

The starting position is that a guarantor is invisible on the credit file while everything runs normally. Credit reference agencies do not normally record details of you as a guarantor on your credit report if the original borrower keeps their repayments up to date⁵. The lender will do a soft credit check on the guarantor, which is not visible to other companies and will not affect your credit score³.

That changes the moment the borrower falls behind. This gets recorded on both your credit files¹. The rule behind it is general rather than specific to guarantor loans: when you take out any type of credit for another person, if that credit agreement is in your name the default will appear on your file². The same logic runs through joint borrowing, where a missed payment is recorded on both parties' credit files even if the ex-partner agreed to repay the debt⁸.

There is a detail here that catches people out. While it may be a requirement of the Consumer Credit Act to issue a default notice, there is no data protection obligation on a lender to issue a default notice to individuals before marking an account as being in default on their credit file². In other words, the absence of a formal notice in your post does not mean nothing has been reported.

Covering the borrower's repayments: the effect on the guarantor

If the borrower fails to make payments, the guarantor is legally liable to pay back the loan for them³. That is the whole point of the arrangement: the creditor agrees to lend the money based on the guarantor being able to repay the loan in full¹.

Paying does not undo the reporting. If you have to cover any of the borrower's repayments, or the loan falls into default leaving you responsible, that is added to your credit report, and any defaults on the account or agreement are also added⁴. Your credit file will show that you did not make your agreed payments, which impacts your credit score¹⁰.

How far the liability reaches depends on the terms. Depending on the terms of your agreement, the guarantor may become liable to pay back everything that you owe, not just the payments you have missed¹¹. The debt can be passed to a collection agency, and court action might be taken¹. Legal action over an unpaid loan can affect your credit score¹².

Can a guarantor's credit history be harmed even if the borrower later catches up?

Yes. Reporting happens when the payment is missed, not when the account is finally settled, and catching up later does not remove the earlier entries. A default stays on a credit file for six years⁶. The same six-year period applies to a mortgage shortfall¹³.

The route into default is not always a single missed instalment. Paying less than you owe each month may be recorded as a series of defaults on your credit record¹⁴. Some payment holidays have the same effect: in some cases suspended payments may be recorded on your history as defaults¹⁵. Failing to pay debts, whether secured or unsecured, can affect your credit rating¹⁶.

Where a creditor agrees to hold off, the relief is limited. Any payment you miss during forbearance is recorded on your credit file and could make it harder to get credit in the future¹⁷. In Scotland, a moratorium is not recorded on credit file, but the people you owe may still report missed payments, which will affect your credit file, and it is recorded on the public Register of Insolvencies¹⁷.

If the borrower enters a formal arrangement, the guarantor is not released. If you enter into an arrangement with creditors, formal or informal, the loan company will default your loan and contact the guarantor to maintain the original repayments¹⁸. Where the borrower's liability is included in a formal arrangement such as bankruptcy, a debt relief order or an individual voluntary arrangement, the guarantor is still fully liable for the debt and expected to maintain the original repayments¹⁸.

Does the borrower's credit file also show the default if the guarantor pays?

It does. The credit agreement is in the borrower's name, so the default is recorded against them, and the guarantor's payments do not transfer it. A debt written off is registered as a default on credit reference agency reports, with the balance reduced to zero and the write-off or partial write-off noted¹⁹.

This is why a guarantor can end up paying a debt that still damages the borrower's file, and why the borrower's own file can be damaged even when the guarantor keeps the account afloat. Guarantor loan debts can be included in most debt solutions, such as debt management plans and bankruptcy, but that covers the borrower's liability, not the guarantee⁷.

Guarantor mortgages: the same risk applies

A guarantor mortgage works on the same principle. It usually involves the guarantor offering their home or savings as security against the mortgage, and agreeing to cover the mortgage payments if the borrower defaults²¹. If the borrower defaults on their mortgage repayments and the guarantor is required to repay the loan, this could have a negative impact on the guarantor's credit history²².

The extra risk is the security. The big downside is that the guarantor could be liable for any shortfall if the property has to be repossessed and sold²¹. Their house could be at risk of repossession¹. A record of falling behind with a mortgage shows as a default on the credit file and stays there for six years¹³.

Lenders assess guarantor mortgages case by case. Lenders will decide this on a case-by-case basis, and it is possible that the security a guarantor offers could offset the risk the borrower poses as a customer²¹. Guarantors themselves need a clean record: guarantors with a bad credit history are not likely to be accepted by lenders, so it is unlikely you will be able to act as one⁴. The usual requirements are a good credit history and a separate bank account from the borrower⁷.

What protects a guarantor, and where it stops

The main protection is a complaint to the Financial Ombudsman Service. Where it decides a guarantor should not have been accepted, it will usually say that the guarantor should be released from the guarantee, that any payments already made should be refunded with interest, and that information added to the credit file should be removed⁷. Where the borrower should not have been given the loan, the ombudsman can order interest and charges refunded with interest and adverse credit file information removed, or, if there is still a balance, removal of all interest and charges so the balance is only what was lent, deducting payments already made, with any overpayment refunded with interest⁷.

The rules on assessing a guarantor sit with the lender. The assessment of the guarantor does not need to be identical to the assessment undertaken in respect of the borrower, but it should be sufficient in depth and scope having regard to the potential obligations which might fall on the guarantor, and providing a guarantee does not remove or reduce the obligation to assess the borrower²³.

Protection stops short of undoing a default that was properly recorded. If you have already missed payments, any help you receive will impact your credit file²⁴. Acting as guarantor for a partner's debt does not usually create a financial association on your credit report, but the lender can pursue you if the partner fails to pay and your credit report could be affected²⁵.

Free, impartial help is available. MoneyHelper explains how guarantor loans work³. StepChange and National Debtline give free debt advice, and the Financial Ombudsman Service handles complaints about guarantor loans and about financial difficulties with mortgages⁷. If a county court judgment is on your file, you may need a guarantor for credit and rental agreements while it is there²⁶.