Almost a third of private landlords with a buy-to-let (BTL) mortgage face the prospect of significantly higher costs this year, the National Residential Landlords Association (NRLA) reveals.

The data was compiled by BVA-BDRC for NRLA, interviewing 752 members in England and Wales between 25 November and 30 December last year.

The research found that 63% of landlords have a BTL mortgage on at least one property. 

Of this group, 29% plan to re-mortgage at least one property over the course of the next year.

The Bank of England (BoE) has forecast that by the end of the year, monthly repayments for BTL landlords are expected to rise on average by around £175. 

It has warned that a fifth of landlords with such a mortgage will face increases of over £300.

NRLA argues this will exacerbate an already serious supply problem in the rental market. 

The BoE explained that the mismatch between the demand for, and supply of rented housing, is in part a consequence of higher borrowing costs. 

NRLA’s research found that 65% of landlords in England and Wales confirm that demand for privately rented housing increased during the final quarter of 2022. 

This was up from 56% who reported increased demand during Q4 2021. 

Despite the strong demand, 30% of landlords said they plan to cut the size of their portfolio in 2023, the highest level of planned disinvestment seen in more than six years. 

Just nine per cent said they plan to increase the size of their portfolio over the next 12 months, down from 14% who said the same in Q3 2021.

NRLA has called on the government to accept its call, and that of the cross-party Levelling Up, Housing and Communities Select Committee, for a review of the impact of recent tax rises on the sector to boost the supply of properties to rent. 

The committee concludes that “landlords with small portfolios are currently critical to the provision of private rented accommodation”.

It argues that a tax review of this kind should “make it more financially attractive to smaller landlords”.

NRLA chief executive Ben Beadle says: “It is time the Government stepped in and accepted calls by the NRLA, the Select Committee and others for tax measures to encourage the supply of homes to rent. Without this, renters face a bleak future as finding somewhere to live becomes increasingly harder.”