Pre-1 May possession notices: the 31 July 2026 deadline, the two clocks, and what to do now

The most common question we have heard since gov.uk quietly corrected its possession guidance on 15 June is a nervous one: is my old notice still any good? For the thousands of Section 21 and Section 8 notices served before 1 May, the honest answer is - only if you move fast.

Every notice served under the old rules now has an expiry date. The outside limit is 31 July 2026. Miss it and the notice is not weakened - it is dead. You start again under the new regime, with new grounds, new forms and longer notice periods. With the first wave of weak possession claims already being thrown out of court, this is not the moment to discover a notice lapsed because nobody diarised the deadline.

This is operational guidance for letting agents, not legal advice. Possession is the area where the cost of getting it wrong is highest, so treat anything contentious as a matter for a solicitor.

What actually expires on 31 July 2026

Since 1 May, two possession systems have been running in parallel. Notices served before 1 May are governed by the old rules - the grounds, forms and notice periods that applied when you served them. Notices served on or after 1 May must comply with the new Section 8 regime. Section 21 is gone for anything new.

The bridge between those two systems has a hard end. To rely on a pre-1-May notice, you must get a possession claim into court before the notice's deadline, and no pre-1-May notice survives past 31 July 2026. After that date the old notice cannot be used to start proceedings, full stop.

The two clocks - Section 21 and Section 8 run on different limits

The deadline is not a single date for everyone. Each notice carries its own clock, and 31 July is the ceiling on top of it.

Section 21 notices have a six-month clock. You can use a pre-1-May Section 21 notice to start court proceedings up to whichever comes first: six months from the date you served it, or 31 July 2026. After 31 July you cannot use a Section 21 notice to start proceedings at all - even one served less than six months ago.

Section 8 notices have a twelve-month clock. A pre-1-May Section 8 notice can be used to start proceedings up to whichever comes first: twelve months from the date of service, or 31 July 2026.

31 July is the ceiling for both. Whatever the individual clock says, nothing pre-1-May survives past 31 July.

Two worked examples make the maths concrete:

• A Section 8 notice served on 10 March 2026 has a twelve-month clock running to March 2027 - but the 31 July ceiling cuts it short. Your real deadline is 31 July 2026.
• A Section 21 notice served on 2 January 2026 has a six-month clock that expires on 2 July 2026 - earlier than 31 July. The earlier date wins, so your deadline is 2 July, not the end of the month.

There is also a Section 21 timing trap worth flagging. If the tenant's required leave date falls on or after 31 July, you will not be able to start Section 21 proceedings before the transitional deadline arrives - which means the notice is effectively unusable. Check the leave date on every Section 21 notice, not just the service date.

"Start proceedings" means issue the claim, not serve the notice

This is where agencies trip. The 31 July deadline is about applying to court - asking the court to issue the claim form - not about when you served the notice or when the notice period ends. Serving the notice in time is not enough. You must get the claim filed before the clock runs out.

If you have already applied to court - either before 1 May or within the notice's window - you are in a better position. The tenancy remains an assured shorthold tenancy and the notice stays valid until the proceedings conclude. The Act does not spell out precisely what "concluded" means, but it is widely read as the point a possession order is enforced by bailiffs. The safe posture is to push every issued claim forward without delay rather than letting it sit.

The selling-ground correction - and the trap it closes

On 15 June, the Ministry of Housing, Communities and Local Government corrected its guidance, removing a line that wrongly implied a landlord could have used the sale of a property as a Section 8 ground before 1 May. There was never a general Section 8 "I want to sell" ground under the old rules. A landlord who wanted to sell relied on Section 21.

That matters for your audit. The new mandatory selling ground - Ground 1A - applies only to notices served on or after 1 May 2026. It cannot be applied retrospectively to rescue an older notice. So if a landlord wants to sell and is leaning on a notice served before 1 May, that notice is a Section 21, and it is on the six-month-or-31-July clock like every other.

The wider lesson: you cannot save a lapsing old notice by pointing at a shiny new ground. A pre-1-May notice lives or dies on the law, prescribed form, grounds and notice periods that applied when it was served. For the record, the pre-1-May Section 8 grounds that were genuinely available included rent arrears, damage to the property, antisocial behaviour, breach of the tenancy agreement, the landlord needing to move back in, and mortgage repossession.

Audit every live notice this week

You cannot triage what you have not listed. For each possession notice your agency served before 1 May, capture:

• Notice type and exact service date - Section 21 or Section 8, and the day it was served.
• The real deadline, in red - the earlier of the notice's own clock (six months for Section 21, twelve for Section 8) and 31 July 2026. Write the actual date next to each notice.
• Proceedings status - has a claim already been issued? If so, note the date the court issued it.
• Original validity - was the notice validly served at the time? The old rules still apply: prescribed form, deposit protection, gas safety, EPC and How to Rent for Section 21. A notice that was invalid on day one cannot be revived now.
• Grounds and evidence - which ground(s) are you relying on, and is the evidence pack ready to file?
• Tenant's required leave date - for the Section 21 timing trap above.

If you manage at any scale, the failure mode here is not the law - it is not knowing what you are holding. A single view of every live notice, its service date and its real court deadline is the difference between filing on time and explaining to a landlord why their claim evaporated. Keeping that kind of timestamped, auditable record is exactly what OdjoAI Property is built to do, but the principle is process, not product. If you are doing this manually, do it religiously: one list, every notice, the real deadline in red, reviewed weekly.

The run to 31 July - a working timeline

This week

Complete the audit. Flag every notice whose own clock expires before 31 July - those deadlines arrive first and are easy to miss while you are watching the headline date.

By early July

Make the issue-or-abandon call on each notice. Instruct solicitors where needed, assemble the evidence, and start filing the claims that are worth filing. Do not batch everything to the last week.

By mid-July

File everything you intend to rely on. Leave a buffer. Court counters and online portals get congested near a hard national deadline, and a claim that is "nearly filed" on 31 July is a claim that has lapsed on 1 August.

After 31 July

Anything not in front of the court is gone. Stop trying to use the old notice and switch to the new Section 8 process described below.

If you have missed it - or you will

For some notices the deadline will already be unreachable. Treat that as a clean restart, not a salvage job.

When a pre-1-May notice lapses, it becomes invalid. For a Section 21, the tenancy becomes an assured periodic tenancy and you lose the no-fault route entirely. To regain possession you must serve a fresh Section 8 notice under the new grounds, forms and notice periods. Many of the new grounds carry a four-month notice period, and Grounds 1 and 1A - moving back in and selling - cannot be used in the first twelve months of a tenancy. Where the issue is arrears, follow the current process in our guide to rent arrears under the Renters' Rights Act.

Whatever you do, do not serve a Section 21. It is abolished, and serving one now is itself a breach that can attract enforcement.

One related correction is worth noting in the same breath. On 11 June, gov.uk clarified that a tenant who leaves before a Section 8 or Section 21 notice expires remains liable for rent until the notice period ends, unless landlord and tenant agree otherwise. If you agree to write off arrears in exchange for a tenant leaving voluntarily - often the cheaper, faster outcome - record the agreement and the agreed end date in writing.

Frequently asked questions

Can I still serve a Section 21 notice?

No. Section 21 was abolished for new notices on 1 May 2026. Only Section 21 notices served before that date can be relied on, and only until their six-month clock or 31 July 2026, whichever comes first.

My Section 8 notice was served in March 2026. What is my deadline?

The earlier of twelve months from service (March 2027) or 31 July 2026. The ceiling wins, so your deadline is 31 July 2026 - and remember the deadline is the date you must have a claim issued at court, not the date you serve anything.

I have already applied to court. Am I affected by 31 July?

No. If your claim was issued in time, the notice stays valid and the tenancy remains an assured shorthold tenancy until the proceedings conclude. Keep the claim moving and enforce any order promptly.

What if the tenant leaves before the notice expires?

They remain liable for the rent to the end of the notice period unless you agree otherwise - gov.uk confirmed this on 11 June. If you strike a deal, put it in writing with a clear end date.

Can I use the new selling ground to support an old notice?

No. Ground 1A applies only to notices served on or after 1 May 2026 and cannot be applied retrospectively. An old notice stands or falls on the rules that applied when it was served.

The takeaway

Old possession notices are a melting asset. Each one has its own clock, every clock is capped at 31 July 2026, and the deadline is met by getting a claim into court - not by having served the notice. Audit every live notice this week, file what is worth filing with a real buffer before the end of July, and treat anything you cannot get to court in time as a fresh start under Section 8. The agencies that come through this clean are simply the ones that know exactly what they are holding, and exactly when each one dies.