If you’re planning to buy a home or remortgage in 2026, your credit score will play a major role in how smooth the journey feels and how competitive your interest rate could be. Lenders have an internal score card that they use to assess the strength of their applicants to determine if they are a suitable candidate to lend to. Based on your credit score, you will either pass that score card or you won’t. It’s that simple. 

 

The good news? With the right steps, you can start improving your credit score today and put yourself in the strongest possible position for a 2026 mortgage application and boost your chances to qualify for the best deal possible. 

The mortgage market is evolving quickly. Lenders in 2026 are expected to: 

 

• Use enhanced affordability and risk modelling, relying more on data and software to determine who they lend to rather than using human underwriters. 

• Reward applicants with stable, well-managed credit histories with the best deals on offer. 

• Tighten criteria for higher-risk borrowers. 

 

A stronger credit score doesn’t just increase your chance of approval it can also open the door to lower rates, higher borrowing limits and more lender options. 

Lenders use one or more of the following trusted credit reference agencies when they assess credit files for mortgage applications: 

• Experian 

• Equifax 

• TransUnion 

 

You can check your credit file with all 3 agencies in one place by using checkmyfile.com. Once you have downloaded your updated report you want to review it in detail to check for any errors or mis information that shouldn’t be there. 

Look for: 

- Errors 

- Outdated information 

- Duplicate accounts 

- Signs of fraud 

- Any late or missed payments which you weren’t aware of 

 

If something looks wrong, dispute it immediately with the credit reference agency. If successful, the error can be removed which will boost your score. Corrections can take 4–8 weeks, so starting early is key. 

 

This is one of the quickest wins. Being registered to vote confirms your address and boosts your “stability score” with lenders. If you’ve recently moved, update it straight away. When you take out a new line of credit, that credit is registered to your address along with the history of payments. When lenders run a credit check on you, they will check all addresses on your electoral roll. If you miss any addresses on your history, they may not be able to find the crucial information they need to decide to lend to you which may cause them to decline your application if they cannot confidently decide. 

 

3. Reduce Your Credit Utilisation 

Your credit utilisation is the percentage of your available credit that you’re using. This applies to your credit cards mainly. Keeping your usage comfortably below your limit indicates to a lender that you are not reliant on credit and can use it little and often and pay it back easily. How you use small amounts of credit is an indicator on how you will use large amounts of credit – like a mortgage. Most lenders like to see you keep your credit utilisation below 50% of your limit. 

 

Example: 

If you have a £3,000 credit limit, try to keep your balance under £1,500. 

High utilisation is one of the most common reasons for a lower mortgage credit score. 

 

Your payment history is the most influential part of your score. Even if your credit usage is high, but you can evidence that you are able to maintain the monthly repayments this will build your score over time as it shows lenders you can borrow money and pay it back. 

Avoid: 

Late payments 

Missed payments 

Persistent overdraft usage 

If you struggle to keep on top, set up direct debits for at least the minimum amount and make overpayments when you can to pay the balance down quicker. 

 

Each new application for credit leaves a hard search on your credit file. Multiple credit applications in a short period suggest financial instability, reliance on credit and can reduce your score. Refraining from applying for new lines of credit in the build up to a mortgage application will protect your score from falling further and slowly boost it back up again over time. 

 

Old defaults, CCJs or unsecured debts don’t disqualify you automatically — but they do affect your options. Having these on your credit file show a history if money mismanagement and remain on your file for 6 years. 

 

If those defaults or CCJs were put on your file in error or due to no fault of your own you can apply to have them removed which will dramatically improve your credit score. If you have historic debts that haven’t been paid down you should look to set up payment plans to pay those down as fast you can. 

 

Length of credit history is often overlooked. Closing long-standing accounts can reduce your score. Even if you have paid down your credit card balance to zero and no longer need the card, keep the card open to protect your credit score. However you should close old accounts you no longer need if they charge you fees for having them, you feel you may be tempted to spend on it again or you want to simplify your finances. 

 

Using tools like credit Karma (TransUnion), ClearScore (Equifax) or Experian Credit Score Tracker will let you stay on top of your credit score and helps you catch changes early and see which actions are improving your score. 

 

If you are preparing for a mortgage application this year and would like support on how you can improve your credit score, then please contact us today. Well be happy to help!