Rent tribunal cases surge following Renters’ Rights Act

Industry experts have warned that the Renters’ Rights Act has shifted the balance of power towards tenants, as new data shows a surge in landlords being taken to tribunal over rent increases.

Data from Hamptons, reported by The Times, shows that property tribunals made 166 market rent decisions in July, almost four times the 44 decisions recorded during the same month in 2025.

Since 1 May, landlords seeking to increase the rent must use the Section 13 process and give at least two months’ notice.

Tenants can challenge the proposed figure at the First-tier Tribunal, which will assess the open-market rent and cannot set the rent above the amount proposed by the landlord.

A tenant can challenge the notice at the First-tier Tribunal for a £47 fee, while the resulting rent cannot exceed the landlord’s figure or be backdated.

Tenants feeling empowered to exercise rights

According to Hamptons data reported by The Times, the monthly average was 42 decisions in the year to late April 2026. This rose to 109 in May and 129 in June, with tenants initiating around 60% of the most recent cases.

Paul Rooke, partner at Mayo Wynne Baxter, warns: “The latest tribunal data is a clear indication that the Renters’ Rights Act has shifted the balance of power towards tenants.

“By removing the threat of retaliatory section 21 ‘no-fault’ eviction and eliminating the risk of backdated rent liability if a challenge is unsuccessful, the Act has reduced the downside for tenants who wish to contest rent increases.

“The sharp rise in tribunal applications can be seen as a reflection of tenants feeling empowered to exercise rights that previously existed in theory but were often underused in practice.

“It is important for landlords to note that rent increases can no longer be justified simply by reference to rising costs.

“Any proposed increase must be supported by robust evidence of market rent, including comparable local lettings, property condition, location, amenities and recent rental transactions”.

Greater scrutiny of rent review decisions

Mr Rooke adds: “A clear audit trail showing how the figure was reached and ensure strict compliance with the statutory section 13 process will need to be kept.

“Evidence, rather than assumption, will increasingly determine outcomes. It is expected that rent challenges will become a significant new category of landlord and tenant dispute.

“Current figures suggest tribunals are coping and processing times have improved, but sustained growth in applications may place pressure on a system already dealing with service charge, leasehold and other property disputes.

“As awareness of tenants’ rights increases, landlords should expect greater scrutiny of rent review decisions and they should treat evidence gathering and procedural compliance as essential risk management tools”.

Landlords seeking to increase rents

Kristine Ng, partner at Morr & Co, said landlords seeking to increase rents should have evidence to support the proposed increase.

She said: “The increase in tribunal challenges is not particularly surprising.

“Many landlords are seeking to increase rents to reflect current market conditions, while tenants remain under significant affordability pressures and are increasingly willing to question whether those increases are justified.

“For landlords, the key point is that the tribunal is concerned with market rent, rather than simply whether a landlord has experienced increased costs.

“A landlord may have perfectly legitimate reasons for seeking a higher rent, but if a challenge is brought the question will ultimately be what rent the property could reasonably achieve on the open market.

“Landlords should therefore ensure that any proposed increase is supported by evidence of comparable local lettings and prevailing market conditions”.