Picture this: your fixed rate ends in two months, your inbox is flooded with lender offers, and every other friend at the school gate is swapping remortgage stories. If you think your credit score is just a ‘background check’ step—think again. It’s center stage, front row, practically shouting in the lender’s ear. Whether you’re craving cash to renovate or just want to escape that punishing SVR, your credit score can make or break the remortgage deal. Missed a phone bill last Christmas? That mark might loom larger than you realise when the bank hits ‘assess’ on your profile. Let’s get real about what’s going on behind closed doors—and I don’t mean your front door, but the screens and offices of the UK’s biggest lenders who decide how much faith (and money) to put in you.
Why Does Credit Score Matter When Remortgaging?
People in the UK often think a remortgage is just a quick paperwork shuffle, but banks don’t gloss over your past. That three-digit number—your credit score—summarises how risky you are to lenders. It’s like your financial trust rating. If you’re chasing the best deals with lower interest, the bank wants proof you can handle debt and haven’t spent years dodging payments. It’s not only about the mortgage itself: a missed gym Direct Debit or late mobile payment can sway things.
The nuts and bolts: UK lenders pull your report from agencies like Experian, Equifax or TransUnion. They check your payment habits, credit card use, missed payments or defaults, and even how often you apply for loans. Not all lenders have the same ‘accept or reject’ criteria—Barclays might green-light you while Santander says no. National stats in 2024 showed nearly 28% of UK remortgage applications were declined due to issues in credit history. It isn’t just about bad debts—sometimes too many ‘soft checks’ before applying can throw up red flags.
Let’s say you have a score above 800 on Experian (out of 999). That’s “excellent” territory and gets you the best rates. Scores between 721 and 880 are considered “good,” unlocking most mainstream deals. Drop much lower, and lenders may offer higher rates or shorter fixed terms—or flat-out refuse your application. Think about it like your mortgage: the lower the risk, the better the reward.
How Does Your Credit Score Affect Your Remortgage Application?
Now, when you apply for a remortgage, your old mortgage gets paid off and a new one starts—sometimes with a different lender. This means the whole process is like applying for a new mortgage from scratch. The only exception is if you’re just doing a “product transfer” within your current lender, where checks are typically more relaxed.
Lenders use your credit score as a shortcut to see how you’ve handled money. They factor in things like:
- Missed or late payments (on anything from credit cards to utilities)
- Outstanding debts or high credit usage
- Previous mortgage arrears, IVA, or bankruptcy entries
- Number of hard searches from recent credit applications (store cards, mobile contracts, car finance)
Your credit score gets thrown into the mix with your income, outgoings, and the size of loan you want. Here’s the clincher—some banks, especially in 2025’s tighter finance market, use automated systems with hard thresholds. If your score’s below that invisible line, your application bounces—no ifs, no appeal to a human manager. Even if it’s above, a lower score pushes you into higher-priced mortgages, costing hundreds extra per year.
Here’s a quick snapshot of how different credit scores affect remortgage interest rates in the UK (data from Moneyfacts, May 2025):
Credit Score Band | Average 2-Year Fixed Rate | Average 5-Year Fixed Rate |
---|---|---|
Excellent (881+) | 4.29% | 4.10% |
Good (721-880) | 4.62% | 4.38% |
Fair (561-720) | 4.89% | 4.65% |
Poor (<560) | 5.75%+ | 5.50%+ |
These rates might look close, but over a £200,000 mortgage, you could pay thousands more just for being in the wrong band.

What Kinds of Credit Issues Affect Remortgaging?
People often think “I’ve never defaulted, so my score’s fine.” But lenders look for all sorts of patterns and red flags. Here are some specific credit blips that can make a remortgage tricky:
- Missed or late payments: Utility bills, phone contracts, even library fines can stay on your file up to six years. Most lenders only care about the last three years, but some dig deeper if your mortgage is large.
- Recent high borrowing: If your credit cards are maxed to their limits or you’ve taken big loans in the last 12 months, lenders worry you’re stretching.
- Frequent applications for credit: Five+ applications for things like car finance, new cards, or Buy Now Pay Later in six months can look desperate.
- County Court Judgments (CCJs), IVA, or bankruptcy: Tough to hide. Mainstream lenders usually require at least three years since a CCJ or IVA (with clean credit since), and most won’t touch open bankruptcies.
- Financial links to other people: If you once took a joint loan with someone with bad credit, it can pull down your score. Even ex-partners.
Maybe you’re thinking, “What about my overdraft?” Lenders expect some use of your overdraft. But if you’re deep in the red each month, it signals money stress. Oddly, not ever using available credit can also be negative—they like to see some credit management.
And here’s a sneaky one: moving frequently. Every address change can make lenders raise an eyebrow, especially if you disappear for years from the electoral roll, which is one of their main ways to confirm your identity.
Steps to Improve Your Chances Before You Remortgage
So you want to give yourself the best shot? First things first: check your credit file. Don’t rely on just one agency—Experian, Equifax, and TransUnion might show different info. Errors happen more than you think (one in five Brits find mistakes, according to a Which? survey last year). Dispute anything quirky or incorrect; it can take a few weeks to fix, but sometimes it’s enough to bump your score into a cheaper mortgage bracket.
If you spot accounts you don’t use, close them. Lenders don’t love dormant cards, but don’t shut them all at once, especially if they’re your oldest accounts. That length of credit history actually helps boost your score.
- Register on the electoral roll at your current address. This is probably the fastest way to give your credit profile a lift.
- Start paying bills by Direct Debit, and don’t be late. Even a single missed payment in the last 12 months can sting.
- Stay under 30% of your total credit limit on each card.
- If you’ve got savings, consider paying down your highest-interest debts (but keep some emergency cash, of course).
- Pause big purchases or new credit applications for three months before applying to remortgage.
Don’t be afraid to talk to a broker. They have access to specialist lenders who’ll look past minor credit dings—think Kensington, Bluestone, or Pepper Money, who actually built their brands fixing ‘credit impaired’ mortgages in the last few years. Sometimes it’s not “bad credit” but just “credit quirks” that scare off big banks. A good broker knows which lenders ignore overdrafts but hate missed mail-order payments, for example.
Crunch all the numbers before deciding. You might feel like locking into a lower rate is urgent with the constant talk of the Bank of England’s next move, but a quick check of your credit file could save you more than switching in a rush.

Common Misconceptions and Extra Tips for UK Homeowners
Some homeowners assume remortgaging is easier than their first mortgage—after all, they’ve “proven” themselves for years. Not always true. Lenders reset the assessment, especially if your financial position changed: new job, more kids, extra loans. Even where your house is can shift lender appetite—property values and local demand come under review because the bank’s covering their risk.
Some people fret too much about tiny blips. Banks expect small slip-ups—one late phone bill from two years ago isn’t a death sentence. But a pattern is what sets off alarm bells: three or more missed payments in a year, or a big default looming in the recent past.
If you’re stuck post-pandemic, struggling with utility costs or child expenses bumping your credit use, speak up early. Most lenders support ‘pre-application’ credit reviews or can give guidance—some will even offer a DIP (Decision in Principle) with a soft search, so you can see if you’re likely to get approved before a hard credit check is run.
Don’t forget about joint mortgages. If your partner’s score tanks because of a missed debit on a shared account, it can drag down your chances. Back in 2024, 17% of declined joint remortgage applications cited partner credit issues as the main reason. Have honest credit chats at home before applying.
- If your remortgage is rejected, don’t apply everywhere at once. Too many hard checks look desperate and keep knocking down your score. Pause, fix what you can, then ask a broker where to try next.
- If changing jobs, timing is important. Lenders like to see at least three months in your new role. Even promotions or maternity leave can confuse automated systems, so get all your payslips lined up.
- Don’t forget your current lender. If your credit’s rocky, a simple product transfer—rolling into a new rate without leaving your existing mortgage provider—has less scrutiny. You may not get the very best rate, but often it’s more flexible than starting again elsewhere.
I’ve watched neighbors (and, yes, Graham!) wrestle with this process, and the biggest win always comes down to planning. Sorting your credit score six months in advance, checking for errors, and being honest about your track record means you’re primed for whatever rates 2025 throws at us.
Taking a little time before you remortgage makes all the difference. It’s not about squeezing every pound from the lender—it’s about putting yourself on solid ground. Your credit score might just be a number, but in the world of remortgages, it’s the number that talks loudest.