A hard deadline passed less than a month ago, and it's had almost no coverage. If you served a Section 21 or old-style Section 8 notice before the Renters' Rights Act came into force on 1 May 2026, you had a strict window to actually apply to court. That window closed on 31 July. As of 1 August 2026, it is no longer possible to apply to court for a possession order using a Section 8 or Section 21 notice served before the Renters' Rights Act came into force.

If that applies to you and you missed it, your old notice is not just weakened. It's gone entirely. This edition covers exactly what happened, who it affects, and what you need to do now if you're one of the landlords caught out.

When Section 21 was abolished on 1 May 2026, the government didn't retrospectively cancel notices that had already been validly served. Your landlord had until 31 July 2026 to ask a court to evict you. You could still be evicted if your landlord applied to court before 1 August 2026.

That gave landlords with a valid pre-1 May notice a three-month grace window — May, June, July — to actually issue court proceedings. Not to have the notice expire. Not to have started thinking about it. To have the application actually filed with the court.

The critical detail: the deadline was about applying to court, not about when your notice period ended. A landlord who served a Section 21 notice in March, with the notice itself expiring in May, still needed to file the court application by 31 July — even if the notice had technically expired weeks earlier and the tenant simply hadn't left.

As of 1st August 2026, it is no longer possible to apply to court for a possession order using a Section 8 or Section 21 notice served before the Renters' Rights Act came into force. This is unambiguous. There's no late-filing exception, no extension mechanism referenced in the guidance, and no partial credit for a notice that was validly served but never taken to court in time.

The consequence is described plainly in tenant-facing guidance: where the notice is no longer valid or when the court process has finished, the tenancy will become an assured periodic tenancy. The rules under the Renters' Rights Act will then apply to the tenancy.

In practical terms: the old notice is void. The tenancy — regardless of what it was before — is now an assured periodic tenancy under the new framework. If you still want possession, you are starting again, from scratch, using the current Section 8 grounds and current notice periods covered across recent editions of this newsletter.

This isn't a niche scenario. Several landlord situations fall directly into this trap:

The landlord who served notice and then things stalled. A Section 21 served in February or March, with every intention of following through — but a solicitor was slow, court capacity was tight, or the landlord simply didn't prioritise filing quickly enough. Three months felt like plenty of time in May. By late July, for a portfolio landlord juggling multiple properties and compliance deadlines, it may not have been.

The landlord who assumed the notice itself was enough. Some landlords believed that having served a valid notice before 1 May protected their position indefinitely, without realising a further court application was required within a specific window.

The landlord dealing with a slow-moving situation. Arrears cases in particular can drag — a tenant paying sporadically, a landlord hoping the situation resolves itself before resorting to court. That hesitation, reasonable as it might have felt in the moment, has now cost the old notice its validity entirely.

Step 1 — Confirm your tenancy's current status. If your old notice is now void, your tenant's tenancy has automatically converted to an assured periodic tenancy under the Renters' Rights Act, in exactly the same way as every other tenancy covered throughout this newsletter.

Step 2 — Give the Information Sheet if you haven't already. Most landlords and letting agents must have given this Information Sheet to their tenants by 31 May 2026. If your tenancy has newly converted to periodic status because your old notice lapsed, the one-month obligation to provide the Information Sheet runs from the date the notice became invalid or the court process concluded — this period runs from either the date the notice is no longer valid, or when the court process has finished. You may have a live obligation here that's easy to overlook in the middle of an already frustrating situation.

Step 3 — Reassess which current Section 8 ground actually applies. Whatever your original reason for seeking possession, you now need to identify the corresponding ground under the current framework: Ground 8/10/11 for arrears (Edition 28), Ground 1/1A for selling or moving in (Edition 30), Ground 7A/14 for anti-social behaviour (Edition 22), or one of the others covered across this year's editions.

Step 4 — Serve a fresh, compliant notice. This means the correct notice period for your ground — four weeks for arrears, four months for sale or moving in — and the correct prescribed form. An old Section 21 form or a pre-Act Section 8 form will not work; the forms themselves changed alongside the grounds.

Step 5 — Check every other compliance gate is open before you serve. Deposit protection, Right to Rent follow-up checks, gas safety, EICR — all of the possession-blocking compliance requirements covered throughout this year apply in full to the fresh notice. A landlord restarting the process is restarting it entirely, including every prerequisite.

There's no way to soften this: a landlord who missed the 31 July deadline has lost months of process and now faces the full notice period again from today, on top of whatever time has already passed since the original notice was served. For a landlord relying on Ground 1A to sell, that's a fresh four-month notice period plus the 12-month protected tenancy calculation from Edition 30. For arrears, it's confirming the tenant still meets the three-month Ground 8 threshold under the current rules, which may have shifted since the original notice.

If a solicitor or agent was handling your case and this deadline was missed on their watch, that's worth a direct conversation — the transitional deadline was published well in advance and was not a surprise change.

Compared to the headline changes — Section 21 abolition, periodic tenancies, the new grounds — this transitional deadline has had a fraction of the coverage. It's easy to see why: it's a footnote to the main story for most commentary, relevant only to landlords already mid-process when the Act came into force.

But for the specific group of landlords it affects, it's not a footnote. It's the difference between a possession case that was months from resolution and one that's now starting over completely. If you served a notice any time before 1 May 2026 and you're not certain whether court proceedings were formally filed before 31 July, checking this today is more urgent than anything else in this edition.

✅ Check whether you served ANY Section 21 or old Section 8 notice before 1 May 2026 — regardless of what stage that case reached.

✅ Confirm whether a court application was actually filed by 31 July 2026 — not whether the notice expired, whether it was filed with the court.

✅ If no application was filed — treat the tenancy as a fresh assured periodic tenancy today. The old notice has no further legal effect.

✅ Check whether you owe an Information Sheet — the one-month window may run from the date the old notice became invalid.

✅ Identify the correct current Section 8 ground for your situation — and confirm you meet its specific threshold and notice period.

✅ Verify every compliance prerequisite before serving fresh notice — deposit protection, Right to Rent, gas safety, EICR all apply in full.

✅ If an agent or solicitor was responsible for the missed deadline — this is worth raising directly and promptly.

This was always going to happen to someone. A hard three-month deadline, buried in transitional provisions rather than headline coverage, was never going to be on every landlord's radar the way Section 21 abolition itself was. If you're reading this and you're not sure whether your case beat the 31 July cutoff — check today. The gap between "still in process" and "starting from zero" is exactly the gap this deadline created, and there's no way back through it now that it's passed.

Track every notice served, the date and the deadline it was tied to — so a transitional cutoff like this one is never missed silently in the background of a busy portfolio.

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Coming up next edition — Council tax and empty properties: what landlords need to know between tenancies.

The Landlords Brief is published for UK landlords. Subscribe free at thelandlordsbrief.co.uk. This newsletter is for general information only and does not constitute legal or financial advice. If you believe you may have missed this deadline, please consult a solicitor promptly.