Buy-to-let mortgage deals are out there for landlords who know where to look.
Data from property consultancy Pegasus Insights reveals one in five landlords own property through a company, with 7 percent placing all their portfolios in a company and 13 percent running a hybrid personal/corporate ownership business.
The research shows that incorporating a letting business is most popular with landlords owning four or more properties, with 33 percent of them - one in three - holding property this way.
Most landlords incorporate when adding property to their portfolios.
However, corporate landlords tend to have low awareness of specialist buy-to-let mortgage lenders.
Mark Long, a Pegasus Insight director, said: "Limited company ownership has moved from the fringes of the buy-to-let market to the mainstream.
"The incorporation model is especially attractive for portfolio landlords, who are typically higher-rate taxpayers and therefore more sensitive to tax changes.
"These landlords tend to be larger, more sophisticated operators, and critically, they are more likely to be active borrowers. That makes them a vital audience for lenders and brokers alike.
"At the same time, our research shows that awareness of the limited company mortgage market is still patchy. Many landlords don't have a clear picture of which lenders are active in this space or the range of products available."