Section 21 notices served before 1 May 2026 — Transitional rules

This page covers historical possession notices for private assured tenancies in England. The final ordinary deadline for starting a claim on a qualifying pre-1 May 2026 notice has passed. A case started in time may still continue.

It does not cover lodgers, holiday lets or the separate commencement arrangements for private registered providers of social housing.

Section 21: no new notices or claims

No new Section 21 notice could be served from 1 May 2026. A qualifying notice served earlier had to be used to start court proceedings by its applicable deadline, and no later than 31 July 2026.

If proceedings were not started in time, that notice cannot now begin a Section 21 claim. Consider the current Section 8 process and obtain advice on whether a ground applies.

Proceedings started in time

The official transition guidance says a case can continue where the court was asked to issue the claim in time. The July deadline did not automatically end pending cases.

The old validity requirements still matter. Depending on the claim, retain the notice, delivery evidence, applicable deposit records, gas safety record, EPC and the How to Rent edition actually supplied. A timely claim does not repair an invalid notice or guarantee possession.

The accelerated procedure can still apply to a qualifying historical Section 21 claim. It is not a route for a new post-deadline claim.

Earlier Section 8 notices

For an ordinary pre-May Section 8 notice, the claim-start deadline was the earlier of 12 months after service and 31 July 2026. GOV.UK describes a specific breathing-space exception for some rent-arrears notices which can extend time. Get case-specific advice before relying on it.

Current notices use the updated grounds and Form 3A. Do not assume the earlier form or notice period remains correct.

When a tenancy moves into the new regime

If a qualifying old notice ceases to be valid, or proceedings end without possession and the tenancy becomes assured periodic, further duties can arise. The official Information Sheet guidance describes a one-month period for supplying the sheet where applicable.

Keep the complete chronology

Keep the agreement, notices, service records, claim submission evidence, court notices, orders and correspondence together. Record actual dates; do not backdate missing records.

TenancyVault’s vault can organise these records. A document bundle is evidence for review, not a finding that the notice or claim is valid.