What does "eligibility" actually mean here?
Eligibility for a mortgage with adverse credit is not a single yes-or-no test. It is a range of outcomes across dozens of lenders, each with its own rules about what they will and won't consider, how far back they look, and what they want to see alongside it. Two people with an identical County Court Judgement (CCJ) can get two different answers from two different lenders, because each lender sets its own risk appetite.
That means there is no universal threshold you either clear or fail. What decides your position is a combination of the type of adverse credit on your file, how long ago it happened, how large it was, whether it has been paid off (satisfied), and what your finances look like now. This guide walks through how those pieces fit together, so that when you do speak to a lender or a broker, you understand what they are actually assessing.
What do lenders actually check on your credit file?
A lender reviewing your application looks at your credit file, the record held by credit reference agencies of your borrowing and repayment history, and reads it in far more detail than the single number most people think of as their "credit score". An underwriter, the person or system that decides whether your application meets a lender's lending criteria, is interested in the specific entries: what type they are, when they were recorded, how much they involved, and how you've behaved since.
Each type of adverse credit carries a different weight, because each one tells a lender something slightly different about risk:
- CCJs show a court has ordered you to repay a debt. Lenders look closely at the amount and whether it's been satisfied.
- Defaults show a lender formally gave up on you repaying as agreed. Age and size both matter.
- Missed payments on ongoing credit show recent conduct, so recency counts for more than history here.
- A debt management plan (DMP) shows you're repaying debts informally at a reduced rate, which some lenders read differently depending on whether it's still active.
- An IVA (Individual Voluntary Arrangement) is a formal, legally binding repayment agreement, and most lenders want to see it completed or well progressed.
- Bankruptcy and repossession sit at the more serious end, and the time since discharge or since the event tends to matter more than almost anything else on the file.
Each of these has its own detail worth understanding properly: the mortgage with a CCJ guide, the mortgage with a default guide, and the full set of adverse credit guides each cover one type in depth.
Which factors can you affect, and which are fixed?
It helps to separate what's already written into the past from what you can still influence, because the two get treated very differently by an underwriter.
What's fixed
The date of a CCJ or default is fixed. The amount it was for is fixed. Whether it's a joint account or one held solely in your name is fixed. None of these change no matter how you manage your finances between now and applying, so there is little value in trying to work around them. What you can do is understand how they read to a lender, and time your application accordingly.
What you can still affect
Your conduct since the event is not fixed. A steady run of on-time payments over the months before you apply tells a lender something concrete about your current situation, regardless of what happened before. Your deposit size, and therefore the loan-to-value ratio (LTV), the proportion of the property's value you're borrowing, is also within your control: a larger deposit lowers the lender's exposure and can open up options that a thin deposit wouldn't. Whether an outstanding default or CCJ has been satisfied is usually something you can act on directly, and doing so before you apply changes how it appears.
The six-month pre-application guide sets out what to focus on in the run-up to applying, based on which of these factors you still have some control over.
Why does the same adverse credit read differently to different lenders?
High-street banks generally set their lending criteria around a fairly narrow band of acceptable risk, and most adverse credit falls outside it. That is not a judgement on the applicant; it's simply how those lenders have chosen to build their underwriting.
A specialist lender, a lender that underwrites mortgages specifically for applicants with adverse credit, sets its criteria differently. It will still decline applications, and it still looks closely at the same factors: type, age, amount, satisfaction status, current conduct. But it starts from a different baseline, built around lending to people whose file includes exactly the kind of entries a high-street bank tends to rule out automatically. Lenders are also often grouped into credit tiers, informal bands reflecting how severe or recent the adverse credit on a file is, and which tier you fall into affects which lenders will even consider the application.
The directory of specialist adverse credit lenders lists real lenders by non-price facts, their regulator status, the product types they offer, and how long they've been established, so you can see the range of approaches without it being presented as a recommendation for any one of them.
How much does timing matter?
Age matters more than most people expect, often more than the amount involved. A CCJ from four years ago sits very differently on a file than one from four months ago, because a lender reads recent adverse credit as a stronger signal about your current situation than something that happened years back and hasn't recurred since.
This is also why the period immediately before you apply carries real weight. A lender doesn't just look at the adverse credit entry itself; it looks at everything that's happened on the file since, including new credit searches, new borrowing, and payment conduct on existing accounts. A hard search, a credit check that leaves a visible mark and can affect your score, from multiple lenders in a short space of time can itself raise questions, which is one reason brokers often use a soft search, a credit check that doesn't leave a visible mark, to explore options before a full application goes in.
A hypothetical example
Take a hypothetical example: someone with a CCJ for £2,400, recorded three years ago and satisfied within the last year, applying with a 25% deposit and a clean twelve months of payment history since. None of those facts guarantee a particular outcome. But together they give a lender a fuller picture than the CCJ alone would, and a specialist lender assessing that file is weighing the satisfaction, the deposit size, and the recent conduct alongside the original judgement, not instead of it. A different applicant with the same CCJ, unsatisfied and with a smaller deposit, presents a different picture to the same lender.
What if you're currently struggling to keep up with repayments?
If you're unable to meet your existing debt repayments right now, a mortgage isn't the right thing to be looking at yet. Free debt advice from StepChange, National Debtline, or Citizens Advice is the appropriate starting point, and none of them charge for that advice. Getting that in order first puts you in a stronger position to look at a mortgage later, whatever the timeline turns out to be.
Where to go from here
This guide sets out how lenders read adverse credit in general terms. Your own file will have its own specific combination of type, age, amount, and conduct, and that combination is what actually determines which lenders might consider you. The decision-tree eligibility tool walks through your own circumstances step by step and gives an indication of where you stand, though it works from general lending patterns rather than any individual lender's live criteria, so it can give a wrong answer for your particular situation and isn't a substitute for a lender's own assessment.