Since May 2026, Section 8 has stopped being the fallback and become the main event. With Section 21 no longer available under the Renters' Rights Act, the section 8 grounds for possession are now the only lawful route to recover an assured tenancy in England, and every property manager needs to know them cold. The reforms converted existing assured shorthold tenancies into periodic assured tenancies, tightened some grounds, added new ones and lengthened several notice periods. If your process still assumes a no-fault notice will bail you out, it is already out of date. This guide walks through what actually changed, which grounds you will lean on most, and how to build a case that survives scrutiny in the county court.
What changed, and why the section 8 grounds for possession now carry all the weight
Before the reforms, most managers used Section 21 for anything awkward and kept Section 8 for serious arrears. That split is gone. Every possession claim now has to sit on a stated statutory ground, be evidenced, and in some cases pass a reasonableness test in front of a judge. In practice this means three things for your day-to-day work:
- You cannot end a tenancy simply because the fixed term expired or because the relationship has soured. There is no fixed term in the old sense any more.
- You must pick the correct ground (or grounds) at the outset and serve the right notice period for it. Get the ground wrong and the claim can fail on a technicality.
- Your paperwork and compliance record become part of the case, not just background. Missing gas or electrical documentation can stall or sink a possession claim.
The grounds themselves fall into two camps. Mandatory grounds oblige the judge to order possession if the ground is made out. Discretionary grounds only succeed if the court also decides it is reasonable to grant possession. Knowing which is which shapes your entire strategy.
The mandatory grounds you will rely on most
Mandatory grounds are your strongest hand because, once proven, the outcome is not left to judicial discretion. Three clusters matter most in residential management.
Rent arrears: Grounds 8, 10 and 11
Ground 8 remains the workhorse for serious arrears, but the threshold has been raised. Where two months of unpaid rent used to trigger it, the Act now sets the mandatory bar at three months (or the equivalent in weekly terms), and the notice period was extended from two weeks to four. The arrears must still be outstanding both at the date of service and at the hearing, so a tenant who clears part of the debt just before the hearing can knock you below the threshold. That is why Grounds 10 (some arrears) and 11 (persistent late payment) are worth pleading alongside Ground 8 as discretionary backups. Serve them together and you keep options open if the numbers shift.
Landlord moving in or selling: Grounds 1 and 1A
Ground 1 (the landlord or a close family member intends to move in) has been broadened, and a new Ground 1A covers a genuine intention to sell the property. Both are mandatory, but they come with guardrails designed to stop them being used as backdoor no-fault evictions:
- Neither ground can be used during the first 12 months of a tenancy.
- The notice period is longer than for arrears - four months rather than four weeks.
- If you recover possession on these grounds, you cannot re-let or re-market the property for a set restricted period afterwards. Doing so risks a penalty.
For managers running portfolios where owners frequently sell or reoccupy, these grounds need careful diary management. Note the tenancy start date, the earliest date the ground becomes available, and the re-letting restriction window on every file.
Other mandatory grounds
There are further mandatory grounds covering situations such as serious anti-social behaviour, certain employment-linked lets, and properties needed back for specific statutory reasons. They are narrower, but when one fits it is usually your cleanest path. Always check the current schedule rather than relying on memory, because the grounds were renumbered and reworded during the passage of the Act.
Discretionary grounds and where they bite
Discretionary grounds are harder work because you have to persuade the judge that possession is reasonable, not merely justified. The common ones cover breach of a tenancy term, deterioration of the property or furniture, and nuisance or anti-social conduct that falls short of the mandatory threshold. Evidence is everything here. A judge weighing reasonableness wants dates, incident logs, correspondence, and proof you gave the tenant a fair chance to put things right.
A practical point that catches managers out: disrepair. If a tenant is in arrears but the property has an outstanding repair the landlord has ignored, expect a counterclaim. Courts increasingly look at whether the landlord met their own obligations before granting possession. Keeping properties genuinely maintained is not just good practice, it protects the possession claim. This is where a fast, documented repair process pays off, and platforms like PlanaJob let property managers compare quotes from vetted contractors so urgent works get done and recorded rather than drifting. The wider economics of keeping a portfolio compliant and profitable is a topic in its own right, and business-strategy resources such as Construction Arbitrage are a useful read if you also manage the works side.
Notice periods and getting the paperwork right
The single most common reason possession claims fail is a defective notice. Under the current section 8 grounds for possession framework, different grounds carry different notice periods, so you cannot use a one-size-fits-all template. A quick working checklist:
- Confirm the ground(s) before you draft. Serve every ground you can genuinely support, not just the strongest one.
- Match the notice period to the longest applicable ground. If you combine a four-week arrears ground with a four-month moving-in ground, the longer period governs.
- Serve the prescribed form correctly and keep proof of service with date and method.
- Check your compliance documents are current - gas safety, electrical safety, deposit protection and the required information. Gaps here give the tenant a defence.
- Diarise the validity window. Notices do not last forever; if you delay issuing proceedings too long, you may have to start again.
Our guidance for landlords and agents on the property managers hub goes into the operational side of tenancy administration, and the PlanaJob blog tracks reform updates as regulations are commenced.
Building a defensible case: the compliance audit trail
The reforms reward managers who can prove what they did and when. A judge deciding a discretionary ground, or a tenant's solicitor probing a mandatory one, will test your records. That means a clean, timestamped trail: rent statements showing exactly when arrears crossed the threshold, repair requests with response times, safety certificates with renewal dates, and correspondence showing you acted reasonably.
This is where keeping a compliance audit trail in PlanaJob earns its keep. When every maintenance job, quote, contractor visit and completion sign-off is logged in one place with dates attached, you can produce the evidence that a property was properly managed without digging through email threads. That record does double duty: it supports your possession claim and it demonstrates you met your landlord obligations before relying on the section 8 grounds for possession. If you manage tenancies at any scale, you can set up a PlanaJob account and start capturing that trail from your next job onward.
The headline takeaway is simple. Post-May 2026, possession is a documentation game as much as a legal one. Pick the right section 8 grounds for possession, serve the correct notice period, keep your compliance current, and log everything. Managers who treat evidence as an afterthought will lose winnable cases; those who build the trail as they go will recover properties faster and with far less friction.
FAQ
Can I still use Section 21 after May 2026?
No. The Renters' Rights Act abolished Section 21 no-fault evictions, and all possession claims must now rely on a stated Section 8 ground. Any tenancy strategy that depended on serving a no-fault notice needs rebuilding around the statutory grounds and their notice periods.
How much rent arrears do I need for a mandatory possession order?
The mandatory arrears ground (Ground 8) now requires three months of unpaid rent, up from the previous two-month threshold, and carries a four-week notice period. The arrears must still be outstanding at both the notice date and the hearing, so it is wise to plead the discretionary arrears grounds alongside it as a safety net.
What happens if my safety certificates are out of date when I serve notice?
Missing or expired compliance documents, such as gas safety or electrical certificates, can give the tenant a defence and delay or defeat your claim. Bring all certificates and required information up to date before serving any Section 8 notice, and keep a dated audit trail proving they were valid throughout the tenancy.