Section 21 is abolished. From 1 May 2026, Section 8 is the only legal route to possession for private landlords in England. Every eviction requires a court hearing. A defective notice means starting again and losing weeks or months of time.
Why Getting the Section 8 Notice Right Matters More Than Ever
Before 1 May 2026, landlords who made errors on a Section 8 notice could fall back on Section 21. That option no longer exists. A defective Section 8 notice cannot be saved -- it must be served again, resetting the notice period and delaying possession proceedings by weeks or months. In cases involving serious rent arrears, this can mean thousands of pounds in additional unpaid rent.
The courts are also unforgiving. A single error in the tenant's name, property address, ground relied on, or notice period is enough for the court to dismiss the claim. Get it right first time.
Step 1: Use the Correct Form
From 1 May 2026, the prescribed form for Section 8 notices in the private rented sector is Form 3 (for tenancies that converted from ASTs on 1 May 2026) or Form 3A (for new tenancies granted after 1 May 2026). Using an outdated form invalidates the notice. Download the current version from GOV.UK immediately before serving -- do not use a saved copy that may be out of date.
From September 2026, you must also be registered on the Private Rented Sector (PRS) Database before serving a Section 8 notice. A notice served by an unregistered landlord may be invalidated. Register early.
Step 2: Identify the Correct Ground or Grounds
The notice must state which ground or grounds you are relying on. You can rely on more than one ground in a single notice -- where you do, the longest applicable notice period applies. The most commonly used grounds after 1 May 2026 are Ground 8 (serious rent arrears, mandatory), Ground 1 (landlord or family member moving in, mandatory), Ground 1A (sale of property, mandatory), Ground 14 (antisocial behaviour, discretionary), and Grounds 10 and 11 (lesser arrears and persistent late payment, discretionary).
Choose your grounds carefully. If you rely on Ground 8 and the tenant pays down the arrears before the hearing, the ground fails. Consider including Grounds 10 and 11 as supporting discretionary grounds so the court retains discretion even if the mandatory threshold is not met at the hearing.
Step 3: Check the Pre-Conditions for Your Ground
Many grounds have pre-conditions that must be satisfied before the notice is valid. For most grounds involving rent arrears, you must have provided the tenant with a valid gas safety certificate, a current EPC, and the government's How to Rent guide. If any of these are missing or out of date, the notice may be invalid for those grounds. Check compliance before serving.
For Ground 1 (landlord moving in) and Ground 1A (sale), the tenancy must have been in place for at least 12 months. For tenancies that converted to periodic on 1 May 2026, the 12-month period runs from that conversion date -- not from when the tenant originally moved in.
Step 4: Calculate the Correct Notice Period
Each ground has a specific minimum notice period. Giving less than the required period makes the notice invalid. The key notice periods are: Ground 8 (serious rent arrears) -- 4 weeks. Ground 1 (landlord moving in) -- 4 months. Ground 1A (sale of property) -- 4 months. Ground 6 (redevelopment) -- 4 months. Ground 14 (antisocial behaviour) -- immediate in serious cases, otherwise 4 weeks. Grounds 10 and 11 (lesser arrears, persistent late payment) -- 4 weeks.
Where you are relying on multiple grounds with different notice periods, the longest period applies to the whole notice. Count the notice period carefully -- it runs from the date of service, not the date you write the notice.
Step 5: Serve the Notice Correctly
Service must be on each tenant named in the tenancy agreement individually. Serving on one joint tenant is not sufficient -- every tenant must receive the notice. The date of service matters because the notice period runs from it. If you post the notice, allow extra days for delivery. If you serve in person, note the date and time and ideally have a witness.
Keep proof of service. A photograph of the posted notice, a signed receipt if served in person, or a recorded delivery receipt are all useful. If the case goes to court, you will need to prove the notice was served and when.
Step 6: Wait for the Notice Period to Expire
You cannot issue court proceedings until the notice period has expired. Issuing too early will result in the claim being struck out. Once the period expires you have 12 months from the date of service to issue proceedings -- if you do not issue within 12 months, the notice expires and you must serve a fresh one.
Common Errors That Invalidate a Section 8 Notice
Wrong form version. Tenant name misspelled or missing. Property address incorrect. Wrong ground stated for the facts. Insufficient notice period for the ground relied on. Pre-conditions not met (gas safety, EPC, How to Rent). Not served on all joint tenants. Proceedings issued before notice period expired. From September 2026: landlord not registered on PRS Database.
Any of these is enough to sink the notice. If you are in any doubt, take advice before serving.