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UK Landlord Rental Income Stalls: Impact on Mortgage Market

UK landlord rental income has stabilised at £59 billion, impacting investment strategies and mortgage decisions for landlords and investors.

By David Sampson
28 August 2026
3 min read
UK buy to let mortgage article image for UK Landlord Rental Income Stalls Impact on Mortgage Market

TL;DR

  • UK landlord rental income has stabilised at £59 billion.
  • this trend may influence future investment decisions and mortgage applications for landlords.

Written by David Sampson for Mortgage118. Last updated 28 August 2026. Reviewed against our editorial standards. Editorial standards. Mortgage118 is a directory — not FCA-authorised and not a mortgage adviser.

The latest data from HMRC reveals that landlord rental income in the UK has plateaued at £59 billion, following a significant increase over the past few years. This trend is noteworthy for landlords, borrowers, and investors as it indicates a shift in the rental market dynamics, potentially affecting future investment strategies and mortgage decisions.

What Does the Plateau in Rental Income Indicate?

The HMRC data shows that total income from UK property has levelled off after a notable rise of 26% between 2020 and 2021, which added £12.3 billion to the market. This increase was largely driven by an uptick in average property income and the number of individuals reporting property income, which rose from 2.81 million in 2020-21 to 2.88 million in 2024-25.

Who Are the Key Players in This Market?

Among the 2.88 million unincorporated landlords declaring property rental income, the average income reported was £20,500, marking a 24% increase since 2020-21. Notably, around 1.3 million landlords earned £10,000 or less, indicating that a significant portion of the rental market consists of smaller landlords. London remains a significant hub, with 17% of unincorporated landlords based there, contributing to 28% of all declared income.

What This Means for the Mortgage Market

The plateau in rental income may signal a more competitive rental market, particularly in London and the South East, where a third of landlords are located. With rising costs and expenses—totaling £34.8 billion in 2024-25—landlords must evaluate their financial strategies carefully. High expenses, especially in residential finance costs amounting to £12.82 billion, could impact profitability and mortgage decisions. Landlords may need to explore current mortgage rates to manage their financial outlook effectively.

What Trends Should Landlords Watch?

Landlords should keep an eye on the declining income from furnished holiday lettings, which fell to £2.46 billion in 2024-25, down from a peak of £2.52 billion in 2021-22. This decline suggests a need for landlords to diversify their portfolios or reconsider their investment strategies. Additionally, with 87.7% of landlords declaring expenses, understanding tax implications and potential deductions will be important for maintaining profitability.

Frequently asked questions

How has rental income changed over the past few years?

Rental income increased significantly from 2020 to 2021 but has since plateaued at £59 billion, indicating a potential shift in market dynamics.

What should landlords consider in light of these trends?

Landlords should evaluate their financial strategies, monitor expenses, and consider diversifying their investments, especially in light of declining income from holiday lettings.

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.