How to Serve a Section 8 Notice After Section 21 (Form 3A, UK 2026)
Since 1 May 2026, Section 21 "no-fault" evictions are abolished. That leaves exactly one route to possession for an assured tenancy in England: a Section 8 notice. If you need a property back — for rent arrears, to sell, to move in, or because of a serious breach — Section 8 is now the whole game, and it's a different discipline from the form-and-wait simplicity of the old Section 21.
This post walks through serving a Section 8 notice correctly: the right form, the right ground, the right notice period, and the procedural traps that get notices thrown out.
What this means for you. Section 8 has always existed, but most landlords only ever used Section 21 because it was simpler — no need to prove a reason. That option is gone. Every possession now requires you to (a) cite a specific statutory ground, (b) be able to evidence it, and (c) get the prescribed form and notice period exactly right. A defective Section 8 notice doesn't just slow you down; it can be struck out, forcing you to start again.
Step 1 — Use the right form: Form 3A, not Form 3
This is the first place landlords go wrong, and it's the same trap as the rent-increase forms. The Section 8 notice has a prescribed form, and from 1 May 2026 GOV.UK splits it by sector:
- Form 3A — "Notice seeking possession of a property let on an assured tenancy or an assured agricultural occupancy in the private rented sector." This is the form you use as a private landlord or letting agent.
- Form 3 — the equivalent for social housing providers.
If you let privately, you need Form 3A. The legacy "Form 3" that older guides and templates still reference is now the social-housing form. The current versions of both live on the GOV.UK assured tenancy forms page (last updated 1 May 2026). Under Housing Act 1988 s.8(3), the notice must be "in the prescribed form" — a notice that isn't the prescribed form (or a document setting out the same information) risks being invalid.
This mirrors the rent-increase split you may already know: Form 4 is the social-housing rent-proposal form and Form 4A is the private one. Same principle, same "A means private" rule. (See our Form 4A rent increase guide for the rent-increase equivalent.)
Step 2 — Pick the ground (and be honest about whether you can evidence it)
Form 3A requires you to state which ground or grounds in Schedule 2 to the Housing Act 1988 you're relying on. The grounds split into two families:
- Mandatory grounds — if you prove the ground, the court must order possession (e.g. Ground 8 serious rent arrears, Ground 1A landlord selling, Ground 1 landlord moving in).
- Discretionary grounds — even if you prove the ground, the court decides whether it's reasonable to order possession (e.g. Ground 10 some arrears, Ground 11 persistent late payment, Ground 12 breach of tenancy, Ground 14 anti-social behaviour).
The full ground-by-ground breakdown — including which grounds the Renters' Rights Act 2025 changed — is covered in our companion Section 8 grounds for possession guide (published later in this Section 8 series). For now, the discipline is: name only grounds you can actually evidence at a hearing, and prefer a mandatory ground if one genuinely fits, because the court's discretion is where otherwise-good cases are lost.
You can cite more than one ground on the same notice. Many landlords pair a mandatory arrears ground with the discretionary arrears grounds as a fallback.
Step 3 — Get the notice period right (this changed under the RRA)
The minimum notice period — the gap between serving the notice and the earliest date you can begin court proceedings — depends on the ground. Under Housing Act 1988 s.8(4AA), the periods are set out in a table. The Renters' Rights Act 2025 lengthened several of them. The headline ones:
| Ground(s) | What it covers | Minimum notice |
|---|---|---|
| 8, 10, 11 | Rent arrears (serious, some, persistent late) | 4 weeks |
| 1, 1A, 1B | Landlord moving in / selling | 4 months |
| 14 | Anti-social behaviour | Immediate (proceedings can begin on the day of service) |
The full per-ground table is in our companion eviction notice periods guide (published later in this Section 8 series). Two things worth flagging now:
- The arrears notice period doubled under the RRA — Ground 8 used to be 2 weeks; it's now 4 weeks (Housing Act 1988 s.8(4AA), as amended).
- The landlord-circumstance grounds (selling, moving in) now carry a 4-month notice — a long lead time you have to plan around.
The notice must specify a date on or after which proceedings may begin, and it can't be earlier than the minimum above. It also can't be later than 12 months from the date of service (s.8(3)(c)) — if you don't issue within that window, the notice lapses and you serve again.
Step 4 — Serve it properly and keep proof
A correctly-drafted notice still fails if you can't prove it was served. Keep evidence:
- The exact date of service.
- The method (recorded/special delivery, hand delivery with a witness, email if the tenancy agreement permits service by email, etc.).
- A copy of the served Form 3A as sent.
If the tenancy has joint tenants, serve all of them. If the tenancy agreement specifies a service method, follow it.
Step 5 — Issue proceedings within the window (if the tenant doesn't leave)
A Section 8 notice is not an eviction. It's the pre-condition to applying to the court for a possession order. If the tenant leaves voluntarily within the notice period, the matter ends there. If they don't:
- Apply to the County Court for a possession order after the notice period expires and within the 12-month window.
- The court will list the matter; for contested mandatory-ground cases (e.g. Ground 8 arrears), the hearing turns on whether you've proved the ground.
- Only a court-issued possession order — enforced, if necessary, by County Court or High Court bailiffs — lawfully ends the tenancy. Never change the locks or remove a tenant yourself; that's an unlawful eviction and a criminal offence under the Protection from Eviction Act 1977.
The five mistakes that get Section 8 notices struck out
| Mistake | Why it fails | Fix |
|---|---|---|
| Using Form 3 (social) instead of Form 3A (private) | Wrong prescribed form | Use Form 3A from GOV.UK |
| Citing a ground you can't evidence | Court dismisses on that ground | Name only evidenced grounds; prefer a mandatory ground that genuinely fits |
| Notice period too short for the ground | Notice invalid | Check the s.8(4AA) period for every ground cited and use the longest |
| Arrears ground served on stale figures | Ground 8 must be met at notice and hearing | Re-check the arrears the day you serve and again before the hearing |
| Self-help eviction after the notice expires | Criminal offence | Only a court possession order + bailiffs lawfully evict |
Related guides
- Section 21 Has Been Abolished: What Landlords Need to Do — why Section 8 is now the only route.
- Section 8 Grounds for Possession Under the RRA — the complete ground-by-ground list (companion guide, published later in this Section 8 series).
- Ground 8 Rent Arrears Possession: The New 3-Month Threshold — the most-used mandatory ground (companion guide, published later in this series).
- Form 6A Section 21 Notice: RRA Transition Guide — if you still have a pre-1-May Section 21 notice in the file.
Sources
- Housing Act 1988 s.8 — the requirement to serve a prescribed-form notice, the 12-month proceedings window, and the s.8(4AA) notice-period table.
- Housing Act 1988 Schedule 2 — the grounds for possession.
- GOV.UK — Assured tenancy forms — Form 3A (private) and Form 3 (social), last updated 1 May 2026.
- Renters' Rights Act 2025 Schedule 1 — the amendments to the grounds and notice periods.
- GOV.UK — Evicting tenants: Section 8 notices — operator guidance on the possession process.
This is general information about serving a Section 8 notice and is not legal advice. Possession claims turn on the specific ground, the evidence, and strict procedural compliance — a defective notice can cost months — so for contested or high-value cases consult a qualified housing solicitor. Crocker Digital Ltd (Company No. 17008789) and RentersActReady accept no liability for action taken solely on the basis of this article.