UK Finance reports that the stock of interest-only homeowner mortgages in the UK continues to decline. According to the industry body, the “interest-only book” shrinks in size every year following the end of the financial crisis, and it also falls throughout 2025. The reporting indicates that the trend is ongoing rather than limited to a single period, reflecting a longer-running reduction in the volume of interest-only mortgages held by lenders. The interest-only mortgage category refers to loans where borrowers pay interest but do not reduce the principal during the term, leaving the original amount due at maturity or through an associated repayment plan. The sources provided do not include figures, comparisons to previous years, or details on how the decline varies by lender or borrower group. Overall, the available information centers on the continued year-on-year reduction in the interest-only homeowner mortgage stock as measured by UK Finance.