Skip to main content
News
Remortgage

Switching from Interest-Only to Repayment Mortgages

Homeowners can switch from interest-only to repayment mortgages, impacting their financial strategy.

By David Sampson
2 June 2026
3 min read
UK remortgage article image for Switching from Interest-Only to Repayment Mortgages

Written by David Sampson for Mortgage118. Last updated 2 June 2026. Reviewed against our editorial standards. Editorial standards.

TL;DR

  • Homeowners can transition from an interest-only mortgage to a repayment mortgage while consolidating debt.
  • this involves assessing loan-to-value ratios and affordability.

Many homeowners are exploring options to switch from an interest-only mortgage to a repayment mortgage, especially when considering debt consolidation. This change can impact your financial strategy significantly, particularly in today’s evolving mortgage market.

Can I Switch My Interest-Only Mortgage?

Yes, homeowners can switch from an interest-only mortgage to a repayment mortgage when they remortgage. This option is particularly appealing for those looking to manage their debts more effectively. In the case of a homeowner with a property valued at £170,000 and an outstanding mortgage balance of £95,000, they can potentially borrow an additional £50,000 for debt consolidation.

What Factors Will Lenders Consider?

When switching to a repayment mortgage, lenders will evaluate several factors to determine eligibility. Key considerations include:

  • Maximum loan-to-value (LTV) ratios, which for this scenario would be around 85%.
  • Affordability assessments based on household income, employment status, and existing financial commitments.
  • Household costs, which are often stress-tested against higher interest rates to ensure sustainability.

If affordability appears tight, extending the mortgage term may be a viable option to consider.

What is Debt Consolidation?

Consolidating debt by adding £50,000 to your mortgage is a strategy that can simplify financial management. However, it’s important to note that while this can reduce monthly payments, it may also lead to paying more interest over a longer term as the debts are spread across the mortgage duration.

What This Means for Homeowners

For homeowners looking to switch from an interest-only mortgage, this transition can provide a pathway to better financial health, especially when consolidating debts. It is essential to understand the implications of such a switch, including the potential for increased overall interest payments. Homeowners should also be prepared for thorough affordability checks and be aware of the importance of maintaining a sustainable financial strategy moving forward.

Frequently Asked Questions

What is the difference between interest-only and repayment mortgages?

In an interest-only mortgage, you pay only the interest on the loan for a set period, while in a repayment mortgage, you pay both interest and principal, ensuring the loan is fully repaid by the end of the term.

Can I consolidate other debts into my mortgage?

Yes, homeowners can consolidate other debts into their mortgage, but it’s important to consider the long-term financial implications, including potentially higher total interest costs.

About David Sampson

David Sampson writes about the UK mortgage market for Mortgage118, covering specialist lending, market trends, and practical advice for borrowers. All content is reviewed for accuracy against FCA guidelines and current market data.