Landlords in the UK face two important deadlines concerning the use of section 21 notices to regain possession of rented properties, with the final date for serving such notices set for 30 April 2026. Additionally, applications for possession orders must be made by 31 July 2026. These deadlines coincide with the introduction of mandatory compliance with Making Tax Digital (MTD), which will impose new administrative requirements on landlords. Understanding these timelines and their implications is essential for landlords planning to exit the Private Rented Sector (PRS) or manage their tax affairs effectively.

Section 21 Notices: Key Dates and Considerations

From 1 May 2026, the section 21 route to regain possession of a property will no longer be available to landlords. The critical date to serve valid section 21 notices is midnight on 30 April 2026. However, it is advisable to serve notices well before this deadline to ensure compliance with statutory rules and tenancy agreements, and to allow for verification. The deadline is firm, and failure to meet it could result in losing the ability to use this possession route.

The process of serving section 21 notices involves precise calculation of termination dates and notice periods, which depend on whether the tenancy is contractual or periodic. These dates are fundamental and non-negotiable. Only experienced landlords or specialist advisers are typically able to navigate these requirements correctly. Solicitors unfamiliar with the Private Rented Sector (PRS) may inadvertently make errors that could invalidate the notice.

Possession Order Applications: The Second Deadline

After serving a section 21 notice, landlords can apply to the court for a possession order no earlier than two months from the date of service. However, the application must be made by the earlier of six months from the notice date or 31 July 2026. The 31 July deadline is less widely known but is set out in government guidance and aligns with the Renters’ Rights Act 2025.

For example, a section 21 notice served on 30 April 2026 would allow applications for possession orders from 1 July 2026, but the latest date to apply would be 31 July 2026. This creates a narrow one-month window for court applications, compared to the previous four-month period. To avoid this compressed timeframe, landlords are encouraged to begin the process as early as January 2026, allowing ample time to ensure all requirements are met and reducing the risk of procedural errors.

Making Tax Digital: Impact on Landlords

Alongside changes to possession procedures, landlords must prepare for the introduction of Making Tax Digital (MTD) for income tax, which will affect many in the PRS. MTD requires landlords to submit quarterly tax filings and final returns using approved software. Unlike current self-assessment processes, HM Revenue & Customs (HMRC) will not provide direct online filing or support for MTD, placing the onus on landlords to use software or engage accountants.

Many small landlords do not currently use accountants and will need to purchase or subscribe to MTD-compliant software. Support from software providers may be limited, as automated help desks and human agents may lack detailed tax knowledge. This could create challenges for landlords unfamiliar with digital tax reporting, potentially increasing administrative burdens and costs.

For landlords whose rental income exceeds the MTD threshold and who cannot secure voluntary tenant departures before 5 April 2026, it may be difficult to avoid mandatory MTD compliance. However, using the section 21 route before the deadlines could facilitate exiting the PRS within the 2026-2027 tax year, thereby simplifying tax obligations.

Implications for the Private Rented Sector

The combination of the section 21 deadline and MTD requirements adds pressure on landlords, contributing to a trend of landlords leaving the PRS. Mark Alexander, a prominent commentator, recently stated, “Never again will I be letting another property in the UK.” This sentiment may become more widespread, potentially leading to increased court delays and challenges for landlords seeking possession orders.

Given these factors, landlords are advised to act promptly by serving section 21 notices early in 2026 and preparing for MTD compliance. Early action will help avoid procedural pitfalls and reduce the stress associated with last-minute applications.

Looking Ahead: Support for Landlords

To assist landlords in navigating these changes, the Landlord Association (TLA) is launching a new Trusted Partners Hub in the first quarter of 2026. This platform will feature verified and approved service providers, including legal, trades, insurance, financial, mortgage, and tenant screening services, aimed at supporting landlords, tenants, and property management businesses. Service providers interested in joining the Trusted Partners Hub can register their interest via the Landlord Association website.