Common reasons for mortgage decline.

Affordability and income issues

Failing the lender’s affordability assessment is the single most common reason for mortgage refusal. Lenders stress-test your income at higher interest rates (typically 6–8%) to ensure you could still afford repayments if rates rise. They also deduct all your existing financial commitments, including loans, credit cards, childcare costs, and regular subscriptions.

If you were declined on affordability, options include reducing existing debts, increasing your deposit to lower the loan amount, extending the mortgage term to reduce monthly payments, or applying with a lender that uses a more generous affordability model. A broker can identify which lenders are most likely to approve based on your specific income and commitments.

Credit history problems

Adverse credit marks such as missed payments, defaults, CCJs, and bankruptcy are common reasons for decline. Even having too many credit searches in a short period can negatively affect your score. Each lender has different thresholds for what they will accept.

Specialist lenders exist specifically for borrowers with credit issues. While their rates may be higher, getting on the ladder or refinancing to a better deal later is often preferable to waiting years for your credit file to clear. A broker who specialises in adverse credit can match you with the right lender.

Check your credit file carefully for errors. Incorrect information such as wrongly recorded missed payments or accounts that do not belong to you can be disputed and corrected, potentially changing the outcome of your application.

Property-related issues

Sometimes the problem is not you but the property. Lenders may refuse to lend on certain property types including non-standard construction (such as concrete or timber-frame), properties above commercial premises, ex-local-authority flats in high-rise blocks, or homes with short leases.

Valuation issues can also cause problems. If the surveyor values the property lower than the agreed purchase price, the lender may reduce the loan amount or decline altogether. In this case, you can negotiate the purchase price, increase your deposit, or seek a second valuation.

Documentation and application errors

Incomplete or inconsistent documentation is a surprisingly common reason for refusal. Missing payslips, unexplained large deposits in your bank statements, or discrepancies between your application and supporting documents can all trigger a decline.

Before reapplying, ensure you have at least three months of bank statements with no unexplained transactions, up-to-date payslips or tax returns, proof of your deposit source, and valid identification. Thoroughness at this stage saves time and improves your chances significantly.