ITA07/S412 entitles a borrower who is claiming relief for loan interest relief to request a statement from the lender showing:
Under Self Assessment, the borrower will only normally be required to provide this information to substantiate a claim for interest relief if HMRC raise enquiries into the return or the claim. The claimant is able to obtain a certificate from the lender if he or she needs or wants to do so. Lenders do not need to issue certificates routinely.