Will getting an Agreement in Principle affect my credit score?
When you apply for an AIP, the lender will run a credit check to assess your eligibility. You'll need to ask what level of credit survey they do – if the lender runs a 'hard' search, it will leave a 'footprint' on your credit file that will be visible to other lenders. A search footprint is a record left by a credit reference agency every time your credit report is searched, either by yourself or by others. If there are a high number of hard searches in a short period of time, it can have a negative impact on your credit score as it could signal that you're struggling to get accepted by other lenders.
However, if the lender runs a 'soft' search, it won't leave a footprint and it won't impact your credit score.
To better understand your credit score, you can request your credit report from credit reference agencies such as Experian, Equifax and TransUnion.