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UK Landlord Rental Income Plateaus in the Mortgage Market

UK landlord rental income has stabilised at £59 billion, impacting over 2.88 million landlords and the mortgage market.

By David Sampson
1 September 2026
3 min read
UK buy to let mortgage article image for UK Landlord Rental Income Plateaus in the Mortgage Market

TL;DR

  • Landlord rental income has stabilised at £59 billion.
  • this affects over 2.88 million unincorporated landlords, many of whom are experiencing rising costs and shifting market dynamics.

Written by David Sampson for Mortgage118. Last updated 1 September 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 indicates that landlord rental income in the UK has reached a plateau at £59 billion, following a significant increase over the previous years. This trend is important for the mortgage market as it reflects the stability of rental income amidst changing economic conditions, impacting both landlords and potential investors.

What does the plateau in rental income mean for landlords?

The plateau in rental income suggests that landlords may need to reassess their financial strategies. With average property income rising to £20,500 for unincorporated landlords in 2024-25, this marks a 24% increase since 2020-21. However, the number of landlords reporting income has also increased, indicating a more competitive environment. Approximately 1.3 million landlords earned £10,000 or less, which highlights the challenges faced by many in maintaining profitability.

How does this impact the mortgage market?

The stability in rental income is important for the mortgage market, particularly for buy-to-let investors. With 17% of unincorporated landlords based in London contributing to 28% of declared income, regional disparities are evident. The North East, for instance, accounted for only 2% of property income, suggesting that investors may need to consider location carefully when making mortgage decisions.

What should landlords watch for next?

Landlords should closely monitor changes in rental demand and property expenses, as 87.7% of them declared expenses totalling £34.8 billion in 2024-25. Notably, residential finance costs represented 37% of all expenses claimed. With the rising costs of maintenance and finance, landlords may need to adjust their rental prices or explore refinancing options to maintain cash flow.

What this means for property investors

For property investors, the plateau in rental income signals a need for strategic planning. Investors should evaluate their portfolios, focusing on regions with higher income potential while being mindful of rising costs. With the current mortgage rates influencing borrowing decisions, it’s essential to stay informed about market trends and consider options like current mortgage rates to optimise financing strategies.

Frequently asked questions

What factors contribute to the plateau in rental income?

The plateau in rental income is attributed to a combination of increased competition among landlords, rising costs, and regional disparities in rental demand.

How can landlords manage rising expenses?

Landlords can manage rising expenses by reviewing their financial strategies, considering refinancing options, and adjusting rental prices accordingly.

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.