Limited company landlords accounted for a record share of buy-to-let property purchases in 2025, underlining a fundamental shift in how investors structure their property portfolios in response to changes in UK tax policy.
New analysis of industry data by Paragon Bank shows that limited companies represented 43% of all mortgaged buy-to-let house purchases during the year, rising sharply from 35% in 2024 and marking the highest proportion on record.
The figures highlight a transformation that has been building for nearly a decade. In 2018, just 7.5% of buy-to-let mortgage completions were made through limited company structures, meaning the share has increased nearly sixfold in seven years.
Industry analysts say the trend reflects a structural shift in the UK property investment market following reforms to the tax treatment of rental income introduced in 2017.
Before April 2017, landlords who owned property in their personal name were able to deduct mortgage interest and finance costs from their rental income before calculating their tax bill.
However, the government gradually phased out this relief and replaced it with a 20% tax credit on finance costs, effectively taxing landlords on their gross rental income rather than their net profits.
For many higher-rate taxpayers, the changes significantly increased the tax burden associated with buy-to-let investments.
As a result, landlords increasingly began purchasing property through Special Purpose Vehicle (SPV) companies, which allow mortgage interest and other costs to be treated as deductible business expenses under corporation tax rules.
According to Paragon Bank, the shift towards corporate ownership has now become firmly embedded in the market.
Louisa Sedgwick, Managing Director of Mortgages at Paragon Bank, said the latest figures demonstrate how dramatically investor behaviour has changed since the reforms.
“This reflects the structural shift we’ve seen in the market since the 2017 tax changes,” she said.
“As landlords have adjusted to being taxed on gross rental income, incorporation has become an increasingly attractive and often necessary route to maintain profitability.
“Limited company structures can potentially not only offer more efficient tax treatment but also provide greater flexibility for portfolio growth and long-term planning.”
Limited companies also rising in remortgage market
The shift is not limited to property purchases. The proportion of buy-to-let remortgages completed through limited companies also increased in 2025.
Corporate landlords accounted for 11.5% of remortgage transactions, compared with 10% in 2024 and just 1.3% in 2018, further demonstrating the rapid growth of incorporation across the sector.
Mortgage brokers say this trend reflects landlords restructuring existing portfolios by transferring properties from personal ownership into corporate structures, particularly when refinancing.
Industry purchase data includes both new buy-to-let acquisitions and cases where landlords move existing properties into a limited company structure as part of tax planning or long-term investment strategy.
Separate data from Companies House also points to a growing number of investors setting up corporate vehicles to hold property assets.
Figures show that 49,029 companies were incorporated in 2025 under the SIC code for buying and selling real estate, the most common category used by landlords applying for buy-to-let finance through a limited company.
That number represents an increase from 45,775 companies formed in 2024, indicating continued momentum behind the incorporation trend.
In total, 274,315 active companies are now registered in the UK for the purpose of buying and selling their own real estate, according to Companies House.
The scale of the sector is striking: there are now more businesses registered for property investment than for hospitality, illustrating the growing importance of real estate within the UK’s business landscape.
A survey conducted by Paragon Bank among more than 500 landlords suggests corporate ownership has become widespread across the buy-to-let market.
The research found that 29% of landlords now hold all of their properties exclusively through limited companies, while a further 36% split ownership between corporate entities and personal names.
Overall, 65% of landlords have created at least one SPV company to manage buy-to-let investments.
Property finance experts say the shift towards corporate structures is likely to continue as landlords adapt to regulatory and tax changes affecting the private rented sector.
Limited companies can provide advantages beyond tax efficiency, including easier succession planning, clearer separation between personal and business finances, and greater flexibility for expanding property portfolios.
Sedgwick said the record share of corporate buy-to-let purchases reflects how deeply this strategy is now embedded in the market.
“The record share of purchases and remortgages completed through limited companies in 2025 underlines how deeply this trend is now embedded in the sector,” she said.
“It is one we anticipate will continue as landlords plan for long-term portfolio growth.”
The figures come at a time when the UK rental market is undergoing broader structural change, driven by tax reforms, tighter regulation and rising borrowing costs.
Some smaller landlords have exited the market in recent years, while others have adapted by restructuring portfolios through limited company ownership.
At the same time, property investment remains attractive to many investors seeking stable income and long-term capital growth, particularly amid ongoing uncertainty in other asset classes.
With incorporation now becoming a mainstream approach among landlords, the data suggests that the traditional model of individuals holding buy-to-let properties in their personal names may increasingly give way to a more corporate structure across the UK’s private rented sector.
