Landlords who served a valid Section 21 notice before 1 May 2026 must issue possession proceedings at court by 31 July 2026 ? the absolute statutory backstop under Schedule 6 of the Renters' Rights Act 2025. After that date the notice lapses, the tenancy converts to an assured periodic tenancy, and possession must be sought under Section 8.
The backstop deadline. Schedule 6, Part 1 of the Renters' Rights Act 2025 sets a hard backstop of 31 July 2026 for landlords to issue court possession proceedings based on a pre-commencement Section 21 notice. The clock runs from whichever is the earlier of: (a) six months from the date the notice was served; or (b) three months from the 1 May 2026 commencement date ? which produces the 31 July 2026 absolute cut-off. For notices served between 1 February 2026 and 30 April 2026, the 31 July backstop will almost always be the binding deadline regardless of when the six-month window would otherwise expire.
What happens if the deadline is missed. If possession proceedings are not issued on or before 31 July 2026, the Section 21 notice lapses and becomes permanently unenforceable. The tenancy automatically converts to an assured periodic tenancy under the new regime. The landlord cannot revive the notice or serve a fresh one ? Section 21 has been abolished. To recover possession thereafter, the landlord must serve a Section 8 notice citing one or more of the statutory grounds under the revised Schedule 2 of the Housing Act 1988. Unlike the old accelerated Section 21 procedure, every Section 8 claim requires a court hearing.
Validity of the underlying notice. Courts will only accept a possession claim if the original Section 21 notice was validly served. Common invalidity grounds include unprotected deposits, failure to provide the prescribed information (How to Rent guide, EPC, gas safety certificate), or service on the wrong date or by an invalid method. An invalid notice cannot be corrected after the commencement date. Landlords should therefore have the original notice reviewed by a solicitor before issuing proceedings to avoid a wasted claim and the loss of the final opportunity to use Section 21.
Proceedings already issued. Where a landlord issued court proceedings on the basis of a Section 21 notice before 1 May 2026, those proceedings may continue to conclusion even after 31 July 2026. The deadline only prevents the initiation of new claims. Accelerated possession proceedings remain available for transitional Section 21 claims already before the court where no defence has been filed, but this procedural route closes permanently for new Section 8 claims from 1 May 2026 onwards.
Action required
Identify any Section 21 notice served before 1 May 2026 where the tenant has not vacated. Instruct a solicitor or apply to court immediately to issue a possession claim ? do not wait until July. Allow time for the court to issue the claim form before the 31 July backstop. Any notice not yet before the court by that date becomes unenforceable.
Effective
2026-07-31
This content is for general informational purposes only and does not constitute legal, financial, or professional advice. Always verify information against the original source and seek independent professional guidance before acting on any regulatory matter.