Your credit score is the primary metric UK lenders use to decide the level of risk you pose as a borrower. A higher score typically grants access to lower interest rates and a wider range of products, while a lower score may restrict you to specialist lenders with higher monthly costs.
When this article was published in July 2026, Bank Rate was 3.75% and the margin between 'prime' and 'sub-prime' rates has widened. Even a modest improvement in your credit profile could move you from a 'standard' tier to a 'reward' tier, potentially saving you over £1,800 a year on an average-sized loan.
How does your credit score affect remortgage rates?
Lenders categorise applicants into risk tiers based on their credit reports from agencies like Experian, Equifax, or TransUnion. Following the 2026 FCA mortgage reforms, there is now greater transparency in how these tiers are constructed.
If you have a high score, you are seen as a low-risk borrower. This allows lenders to offer you their 'headline' rates. Conversely, if your history shows missed payments or high credit utilisation, you may be pushed toward specialist products with higher margins to offset the perceived risk.
As an illustration only, a borrower with an 'Excellent' rating might secure a 2-year fix at 4.2%, while someone with a 'Fair' rating for the same property and LTV might only qualify for 5.4%.
Pro Tip: Don't just look at the score. Lenders look at the data behind it. High revolving balances on credit cards can harm your application even if your 'points' look healthy.
Comparison: Impact of credit scores on monthly repayments
To illustrate the cost of a lower credit score, the table below compares estimated rates for a £225,000 remortgage over a 25-year term, assuming a 75% Loan-to-Value (LTV).
| Credit Category | Estimated Interest Rate | Monthly Repayment | Total Interest (5 Yrs) |
|---|---|---|---|
| Excellent | 4.10% | £1,199 | £42,450 |
| Good | 4.45% | £1,244 | £46,210 |
| Fair | 5.15% | £1,337 | £53,880 |
| Poor/Specialist | 6.25% | £1,489 | £66,120 |
Note: Illustrative example only — not current product rates. See our best mortgage rates page for guarded current-rate information.
What factors influence your score when remortgaging?
When you apply for a remortgage, the lender isn't just looking at the number. They delve into several years of financial history. Key factors include:
- Payment History: Even one missed mobile phone bill three years ago can show up. Consistency is key.
- Credit Utilisation: If you are using 90% of your available credit limits, lenders worry you are overstretched.
- Address History: Being on the electoral roll at your current address is a simple but vital requirement.
- Application Frequency: Making multiple credit applications in a short window can signal 'credit hunger'.
Why the 2026 FCA reforms matter for your credit
The most recent FCA reforms have mandated that lenders must provide clearer justifications when a borrower is declined for a standard rate based on credit. This 'Consumer Duty' evolution means we can now see more specifically why a client didn't qualify for a certain product, allowing us to fix the issue before trying another lender.
You can use our calculators to see how different interest rates affect your affordability under these new guidelines.
How to improve your credit score before you remortgage
If your current fixed rate is due to expire in the next six to nine months, now is the time to audit your finances. Taking small steps early can result in a higher score by the time you submit your application.
- Clear small balances: Reducing your credit card usage to below 30% of the limit can provide a quick boost.
- Close unused accounts: Old credit cards you no longer use can sometimes complicate your profile.
- Check for errors: Ensure your name and address are identical across all accounts and the electoral roll.
- Avoid new debt: Do not take out a new car loan or store card in the months leading up to your remortgage.
For more detailed advice, read our guide on how to improve your credit score.
Pro Tip: In 2026, many lenders use 'Open Banking'. They might look at your actual bank statements to see if you spend money on things like gambling or excessive subscriptions, which a traditional credit score doesn't show.
Can I remortgage with a poor credit score?
Yes, it is possible. There is a robust market for 'adverse credit' remortgages. While you won't get the lowest rates, a specialist lender might still offer a better deal than your current lender's Standard Variable Rate (SVR).
If you have experienced significant issues like a CCJ or bankruptcy, you should look into our bad credit mortgage guides for specific paths forward. We work with over 90 lenders, many of whom specialise in 'non-standard' credit profiles.
What I tell my clients
"I often see clients who are terrified of their credit report. My advice is always the same: face the data early. A 'Fair' score isn't a dead end; it's just a different starting point. By the time we look at the 2026 market, many lenders are more interested in your trend of improvement rather than a mistake from five years ago. Let's look at the whole picture—sometimes the equity in your home can outweigh a slightly bumpy credit history."
— Matt
Looking for the right deal?
Navigating the relationship between credit scores and remortgage rates requires expert insight. Whether you are a first-time buyer coming to the end of your first term or a seasoned homeowner, we can help you find a lender that fits your profile.
We also recommend reviewing your life insurance and income protection when you switch lenders to ensure your new mortgage remains affordable even if your circumstances change.
If you are ready to see what rates you qualify for or want to discuss your credit file in confidence, contact us today for a free initial advice consultation.