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Buy-to-Let Mortgage Market Outlook for 2026

The buy-to-let mortgage market is shifting, with landlords facing new affordability challenges as they transition from historically low rates.

By David Sampson
20 July 2026
3 min read
UK buy to let mortgage article image for Buy-to-Let Mortgage Market Outlook for 2026

TL;DR

  • Over two million rented homes in the UK currently fall below Energy Performance Certificate (EPC) C standards, with average upgrade costs estimated at £5,400.
  • landlords transitioning from lower rates will face affordability challenges in the current mortgage market.

Written by David Sampson for Mortgage118. Last updated 20 July 2026. Reviewed against our editorial standards. Editorial standards. Mortgage118 is a directory — not FCA-authorised and not a mortgage adviser.

The buy-to-let (BTL) mortgage market is facing significant changes as landlords transition from historically low rates to a more challenging environment. With many borrowers moving from rates below 3% to much higher pricing, affordability is becoming a pressing concern for landlords. As the economy stabilises, some may choose to monitor the market for potential further rate reductions.

What are the current challenges in the mortgage market for landlords?

Landlords are now grappling with the reality of higher mortgage rates compared to just a few years ago. Many are transitioning from loans with rates below 3%, which has made the shift to the current market particularly steep. This change poses immediate affordability challenges, as landlords may struggle to maintain profit margins while meeting increasing costs.

How does the EPC situation impact the mortgage market?

Government data indicates that over two million rented homes are rated below EPC C, which is becoming a critical concern as new energy efficiency regulations are introduced. To comply with these standards, landlords may need to invest an average of £5,400 per property to upgrade their homes. This financial burden could further strain their budgets, especially for those already facing higher mortgage costs.

What should landlords consider in the evolving mortgage market?

As the mortgage market evolves, landlords should keep a close watch on interest rate trends. If rates begin to decline, some may prefer to wait before refinancing or making new investments, hoping for even better pricing. This cautious approach could be beneficial as the economic market stabilises, but it also requires careful monitoring of market conditions.

What this means for landlords and investors in the mortgage market

For landlords, the current mortgage market presents both challenges and opportunities. While the shift to higher rates may squeeze affordability, the potential for lower rates later in the year could provide a chance for refinancing at more favourable terms. Investors should also consider the implications of energy efficiency regulations, as properties requiring significant upgrades may become less attractive to tenants, impacting rental income.

Frequently asked questions

What is the significance of EPC ratings for landlords?

EPC ratings are important for landlords as they determine the energy efficiency of a property. Properties rated below EPC C may face restrictions on renting, and landlords will need to invest in upgrades to comply with upcoming regulations.

How can landlords manage higher mortgage costs?

Landlords can manage higher mortgage costs by reviewing their financial strategies, considering refinancing options when rates drop, and investing in energy efficiency improvements to enhance property value and appeal. For more information on current rates, visit our current mortgage rates page.

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.