How to Serve a Section 8 Notice in 2026: Form 3A and the Errors That Invalidate It

Section 8 is now the only route to possession. You must use Form 3A, prescribed by SI 2026/354. Here's how to complete and serve it correctly — and the mistakes that make it void.

Section 21 is gone. From 1 May 2026, Section 8 is the only route to possession in the English private rented sector. Every landlord who needs their property back — for rent arrears, antisocial behaviour, or to sell or move in — must now use this process. For many, Form 3A will be a document they have never used before.

The prescribed form: Form 3A

Form 3A is prescribed by the Assured Tenancies (Private Rented Sector) (Prescribed Forms and Transitional Provisions) (England) Regulations 2026 (SI 2026/354), reg 3. It must be the version published by the Secretary of State that has effect at the time you serve the notice — the form is updated periodically and you must use the current version, not an old one. Download it from GOV.UK immediately before serving.

A notice served on an outdated form may be found invalid. The consequence is that the notice does not start the possession clock and you must start again.

Before you complete the form: the deposit precondition

A court cannot make a possession order on most Section 8 grounds unless, at the time of the hearing, the tenant's deposit is protected in a government-approved scheme and the prescribed information has been properly served — or the deposit has been returned in full (or with agreed deductions), or a s.214 financial compensation application has been determined, settled, or withdrawn.

These restrictions do not apply to Grounds 7A and 14 (serious antisocial behaviour). For every other ground, check your deposit compliance before serving.

Completing the form

Form 3A asks for the full property address, the names of all tenants named in the tenancy agreement, the grounds for possession being relied on, and the date by which the tenant must leave.

The grounds must be factually complete and accurate. A court can decline to grant possession on a ground where the evidence does not support it — but this does not invalidate the notice for other grounds. Landlords often include multiple grounds, particularly Grounds 8, 10, and 11 together for rent arrears cases where arrears levels fluctuate.

Getting the departure date right

The date specified must not fall before the end of the longest notice period for all the grounds being relied on. Where multiple grounds are used, wait until the longest notice period has expired before applying to court.

Key notice periods:

Ground	Notice period
Ground 14 (nuisance/illegal use)	None — proceedings start immediately after service
Ground 7A periodic tenancy (serious ASB)	4 weeks
Ground 7A fixed-term tenancy (serious ASB)	1 month
Grounds 8, 10, 11, 12, 13, 17 and others	2 weeks
Grounds 1, 1A, 2, 5, 6, 7, 9, 16	2 months

For Grounds 1 and 1A, the specified date must also fall no earlier than 12 months after the tenancy started.

How to serve the notice

Valid service methods:

In person — hand it to the tenant directly. Most reliable.
Through the letterbox — post it through the letterbox at the property if the tenant is unavailable.
Registered post — send to the property address.
Email — only valid if the written tenancy agreement expressly states that email is an agreed service method.

Give a copy to each tenant named in the agreement. Keep the original.

Certifying service: the N215

Complete an N215 (Certification of Service) at the time of service, or write "Served by [your name] on [date]" on the form itself. The N215 is your evidence of when the notice was served — the notice period calculation runs from that date. A court will ask for it when you apply for a possession order.

After serving the notice

If the tenant does not leave by the specified date, apply to the County Court for a possession order. You cannot apply until the day after the specified departure date. Before applying: confirm the deposit remains protected (or has been resolved), and gather your evidence for each ground.

Managing Section 8 notices with mypy

mypy's Section 8 notice builder guides you through ground selection, checks deposit compliance status, calculates the correct notice period and earliest valid possession date, and generates a ready-to-serve Form 3A. Free for up to 2 properties.

Frequently asked questions

Can I serve a Section 8 notice by email?

Only if your written tenancy agreement expressly states that email is an agreed service method. If it does not, email is not valid service. Most tenancy agreements do not include email service provisions — use personal delivery or registered post and keep proof.

I used the wrong version of Form 3A. Is it invalid?

Using an outdated form carries real risk. Courts have some discretion where a notice is "substantially to the same effect" as the prescribed form, but there is no guarantee. Download the current version from GOV.UK immediately before serving every notice.

Do I need a solicitor to serve a Section 8 notice?

No — you can serve it yourself. However, the requirements around form, grounds, service, and deposit compliance are technical, and an invalid notice means starting again. Many landlords with limited experience of possession proceedings use a solicitor for the first notice or if the tenancy is likely to be contested.

The tenant left voluntarily before the notice period expired. Do I still need to go to court?

No. If the tenant surrenders the tenancy and vacates voluntarily, you do not need a court order. Confirm the surrender in writing. If there is any doubt about whether the tenancy has ended, seek legal advice before re-letting.

Can I use Section 8 on a tenancy that converted from a fixed term on 1 May 2026?

Yes. All private assured tenancies in England became periodic assured tenancies from 1 May 2026 under the RRA. Section 8 is the applicable possession route for all of them.

Sources

This article is general guidance, not legal advice. Verify your obligations against current GOV.UK guidance or seek professional advice for your circumstances. Last reviewed 2026-07-06.