Concerns are growing across the private rented sector (PRS) as rising costs faced by landlords are expected to push rents even higher in the coming months. Industry bodies are now calling on the government to take action, warning that without intervention, tenants could face increased financial pressure.
At the centre of the issue is the sharp rise in buy-to-let mortgage costs. According to recent analysis, landlords taking out new mortgages are now paying significantly more than they were just a few months ago. Data from Moneyfacts suggests that, on average, borrowing costs have increased by around £1,100 per year compared to the start of March.
This rise in mortgage expenses is being linked to wider global economic uncertainty, including ongoing geopolitical tensions, which continue to influence financial markets. As borrowing becomes more expensive, landlords are finding it increasingly difficult to maintain current rent levels without making adjustments.
However, mortgage costs are only one part of a much broader financial picture. Landlords are also facing a series of upcoming changes that could further increase their expenses. One of the most significant is a planned rise in the tax paid on rental income, which is due to take effect next year. The Office for Budget Responsibility has already warned that this change is likely to lead to higher rents.
In addition, there is still uncertainty surrounding the costs associated with new regulatory measures under the Renters’ Rights Act. Landlords may soon be required to contribute to a new ombudsman scheme and a central property database, although the exact fees have yet to be confirmed. This lack of clarity is making it more difficult for landlords to plan ahead.
Energy efficiency requirements are another key concern. The government is expected to introduce stricter standards, with estimates suggesting that landlords could need to spend up to £10,000 per property to bring homes up to the required level. While these improvements are intended to reduce energy usage and benefit tenants over time, they represent a substantial upfront investment.
The National Residential Landlords Association (NRLA) has warned that many landlords simply do not have the capacity to absorb these rising costs. According to HM Revenue and Customs, the average rental income for individual landlords is around £19,400 per year. This figure is considerably lower than the earnings from a full-time minimum wage job, highlighting the financial limitations many landlords face.
As a result, there is growing concern that these increased costs will inevitably be passed on to tenants through higher rents. For many renters, particularly those on lower incomes, this could create additional financial strain at a time when household budgets are already under pressure.
The situation is made more difficult by the continued freeze on housing benefit rates. While rents have been rising, support for tenants has not kept pace, leaving many struggling to cover the gap. This creates a challenging environment for those already at risk of financial hardship.
Some have suggested that rent controls could help address the issue, but the NRLA has cautioned against this approach. The organisation argues that limiting rent increases too strictly could discourage landlords from investing in the sector, ultimately reducing the number of properties available to rent.
Current market conditions highlight this concern. Data from Zoopla shows that there are, on average, nearly five tenants competing for every available rental property. This imbalance between supply and demand continues to drive competition and puts upward pressure on prices.
To address these challenges, the NRLA is calling on the government to take a more proactive approach. This includes reconsidering the planned tax increases on landlords and ensuring that any new regulatory costs are kept as low as possible. Reducing these financial pressures could help stabilise the market and limit further rent increases.
The association is also urging reforms to the tax system to better support investment in energy efficiency improvements. By providing incentives or financial support, landlords may be more willing to upgrade properties without needing to recover the full cost through higher rents.
Supporting tenants is equally important. The NRLA has called for housing benefit rates to be reviewed and unfrozen, ensuring that financial assistance better reflects current rental prices. This could help ease the burden on lower-income households and improve access to affordable housing.
Industry leaders have emphasised that while the government cannot control global events that influence borrowing costs, it does have the ability to shape domestic policy. Decisions around taxation, regulation, and tenant support will play a crucial role in determining how the rental market evolves in the coming years.
There is also a growing recognition that the perception of landlords as being able to absorb all rising costs is not always accurate. Many operate with limited margins, and continued increases in expenses are likely to have a direct impact on rental pricing.
Ultimately, the PRS is facing a combination of pressures that could lead to further rent increases if left unaddressed. Balancing the needs of landlords and tenants will be essential in maintaining a stable and sustainable rental market.
As the situation continues to develop, the coming months will be critical. The decisions made by policymakers now will shape the future of the sector, determining whether rents can be stabilised or whether further increases become unavoidable.


