Your credit score plays a crucial role in your mortgage application. It affects whether you are approved, which lenders will consider you, and the interest rates you are offered. The good news is that there are practical steps you can take to improve your credit score before applying, potentially saving you thousands over the life of your mortgage.
Why Your Credit Score Matters for Mortgages
When you apply for a mortgage, lenders check your credit file to assess how reliable you are as a borrower. They look at your history of managing credit, including credit cards, loans, phone contracts, and any previous borrowing.
A stronger credit profile means:
- More lenders willing to offer you a mortgage: Some lenders have strict credit requirements and will only accept applicants with clean histories
- Access to better interest rates: The best mortgage deals are reserved for applicants with excellent credit
- Higher borrowing amounts: Lenders may be more generous with how much they will lend
- Smoother application process: Fewer questions and less chance of delays or declines
It is worth noting that each lender has its own criteria and scoring system. There is no single universal credit score that all lenders use. However, improving your overall credit profile will help across the board.
1. Check Your Credit Report
Before you do anything else, check your credit report with all three main credit reference agencies in the UK:
- Experian
- Equifax
- TransUnion
You can access your Experian report through their website, Equifax through Clearscore, and TransUnion through Credit Karma. All offer free access to your report.
Look for any errors or information that does not look right. Common issues include:
- Incorrect addresses or outdated personal information
- Accounts you do not recognise (which could indicate fraud)
- Payments incorrectly marked as late or missed
- Old debts that should have been removed (most negative marks drop off after six years)
- Financial links to people you no longer have a connection with (such as an ex-partner)
If you spot errors, contact the credit reference agency to dispute them. This process can take a few weeks, so start early.
2. Register on the Electoral Roll
This is one of the simplest and most effective things you can do. Being registered to vote at your current address confirms your identity and address, which lenders use to verify who you are.
If you are not already registered, you can do so online through the government's voter registration service. It takes just a few minutes and can have a noticeable positive impact on your credit profile.
3. Reduce Existing Debt
Lenders look at your overall level of debt when assessing your mortgage application. High levels of existing borrowing can reduce the amount they are willing to lend and may affect your interest rate.
Credit Card Balances
Try to reduce your credit card balances as much as possible before applying. Your credit utilisation ratio, the percentage of your available credit that you are using, is an important factor. Ideally, aim to use less than 30% of your available credit limit on each card.
For example, if you have a credit card with a £5,000 limit, try to keep the balance below £1,500. If you have multiple cards, focus on bringing down the balances on those with the highest utilisation first.
Loans and Finance Agreements
Outstanding personal loans, car finance, and buy-now-pay-later agreements all count towards your overall debt. If you can pay off any of these before applying, it will improve both your credit profile and your affordability assessment.
4. Avoid New Credit Applications
Every time you apply for credit, whether it is a credit card, loan, phone contract, or even a car insurance quote that involves a credit check, a hard search is recorded on your credit file.
Multiple hard searches in a short period can make you appear desperate for credit, which lenders view negatively. In the six months before applying for a mortgage:
- Do not apply for new credit cards or loans
- Avoid opening new store cards
- Be cautious with buy-now-pay-later services, as some now report to credit agencies
- If you need a quote for insurance or similar, check whether the provider uses a soft search (which does not affect your score) or a hard search
5. Build a Positive Payment History
If you have a thin credit file, meaning you have very little borrowing history, lenders may struggle to assess your reliability. Counterintuitively, having no credit history can be almost as problematic as having a poor one.
To build a positive history:
- Use a credit card responsibly: Make small, regular purchases and pay off the balance in full each month. This shows you can manage credit without relying on it
- Keep old accounts open: The length of your credit history matters. An old credit card you have had for years, even if rarely used, contributes positively
- Set up direct debits: Ensure all bills, including utilities, phone contracts, and any existing credit, are paid on time every month. Even one missed payment can stay on your file for six years
6. Close Unused Credit Accounts (Selectively)
Having a large amount of available credit, even if you are not using it, can work against you. Lenders may worry that you could suddenly take on a lot of debt. If you have multiple credit cards you never use, consider closing some of them.
However, be strategic about this:
- Keep your oldest credit account open, as it helps with the length of your credit history
- Do not close accounts if it would push your utilisation ratio above 30% on remaining cards
- Closing accounts does generate a small search on your file, so do this well ahead of your mortgage application
7. Remove Financial Links to Others
If you have ever held a joint account, joint mortgage, or joint credit agreement with someone, you will have a financial association on your credit file. This means their credit behaviour can affect your score.
If you are no longer financially connected to that person, for example after a relationship breakdown, contact the credit reference agencies to request a notice of disassociation. This removes the link so their credit history no longer impacts yours.
8. Manage Your Bank Account Well
While your bank account activity does not appear on your credit report in the same way as credit accounts, lenders will ask to see your bank statements as part of the mortgage application. They will look at:
- Overdraft usage: Regularly dipping into your overdraft can signal financial stress
- Spending patterns: Excessive gambling transactions are a red flag for lenders
- Bounced payments: Failed direct debits or returned payments look poor
- Savings habits: Regular saving demonstrates financial discipline
In the three to six months before applying, try to keep your account in good shape. Avoid using your overdraft, ensure all direct debits are covered, and demonstrate regular saving if possible.
How Long Does It Take to Improve Your Credit Score?
The timeline depends on your starting point:
- Quick wins (1-2 months): Registering on the electoral roll, correcting errors, reducing credit card balances
- Medium-term improvements (3-6 months): Building a positive payment history, allowing hard searches to age
- Longer-term recovery (1-3 years): Recovering from missed payments, defaults, or CCJs
Ideally, start working on your credit score at least six months before you plan to apply for a mortgage. This gives you enough time to make meaningful improvements and demonstrate a consistent positive pattern.
What If You Have Bad Credit?
If you have more serious credit issues, such as CCJs, defaults, or an IVA, do not assume a mortgage is out of reach. There are specialist lenders who consider applicants with adverse credit, though interest rates will typically be higher.
A mortgage broker can be particularly valuable in this situation, as they know which lenders are most likely to accept your circumstances and can present your application in the best possible light.
Ready to Apply?
At CGR Financial, we work with clients at every stage of their credit journey. Whether your credit score is excellent or you have had difficulties in the past, we can help you understand your options and find the right mortgage for your situation.
Get in touch for a free, no-obligation consultation. We will review your circumstances and advise you on the best path forward.