Serve notice

To serve notice is to formally deliver a written notice to a tenant in the way required by law and the tenancy agreement. It is the legally required first step before a landlord can take any formal action, seeking possession, raising rent, or requiring access, and a notice that is not correctly served has no legal effect, regardless of how well-founded the underlying reason may be.

When a landlord needs to serve notice

The three most common situations in which a private landlord in England serves notice are:

Possession. From 1 May 2026, under the Renters' Rights Act 2025, the only statutory route to possession is a Section 8 notice served on the prescribed Form 3A, specifying the legal ground being relied on and the date from which court proceedings may begin. Section 21 no-fault possession was abolished from that date and can no longer be used. The gov.uk guidance on giving notice to evict tenants confirms that the new process applies to all assured tenancies and that landlords must use the correct notice period for the specific ground relied upon.

Rent increases. From 1 May 2026, rent can only be increased through the Section 13 process using Form 4A. Rent review clauses in tenancy agreements can no longer be used to trigger an increase. The notice must give the tenant at least two months' notice and can only be served once per year. Full details are in the notice period entry and in our guide to when landlords can increase rent.

Access for inspections or works. Most tenancy agreements require the landlord to give at least 24 hours' written notice before entering the property for inspections or non-emergency repairs. This is a contractual requirement, not a possession notice, and the specific form depends on what the tenancy agreement says.

Permitted methods of service

The method of service must be one that the law and the tenancy agreement permit. The standard recognised methods for serving a possession or rent increase notice in England are:

Hand delivery to the property. Posting the notice through the letterbox, or handing it directly to the tenant, is the most reliable method. Notice delivered personally is generally deemed served immediately if the tenant accepts it, or on the next business day if posted through the letterbox without the tenant being present.

First-class post. Where notice is served by first-class post, the law treats it as deemed served on the second business day after posting. This means the notice period does not start running on the day of posting, landlords must add the posting-to-service gap before counting the minimum notice period. A certificate of posting from the post office is essential evidence.

Email. Email service is only valid where the tenancy agreement expressly provides for it and the tenant has given an email address for service. Even where email is permitted, many practitioners recommend also posting a physical copy to the property, since a tenant who claims non-receipt creates a dispute that is difficult to resolve without a hard copy delivery record. If served by email before 4:30pm on a business day, service is generally treated as same-day; after that time, or at weekends, it is treated as the next business day.

Note that verbal notification, text messages, and informal messages are not valid notice of any kind unless the relevant legislation or the agreement specifically provides for them.

Joint tenancies

Where two or more tenants are named on the tenancy agreement, each tenant must receive their own individually addressed copy of the notice. Serving a single notice addressed to "the tenants" is insufficient. This applies to Section 8 possession notices and to Form 4A rent increase notices. Failure to serve all joint tenants invalidates the notice.

Proof of service

In our experience supporting landlords through possession proceedings, the single most common procedural failure is not the notice itself but the inability to demonstrate it was served. Landlords must keep:

A copy of the completed notice as actually served. A record of the date, time, and method of service. For letterbox delivery, a photograph of the envelope being posted through the door and a signed witness statement. For postal service, a certificate of posting or recorded delivery receipt. For email, a sent-folder timestamp and any read-receipt.

If a case reaches court, the landlord will need to produce this evidence. Where there is any doubt, completing an N215 Certificate of Service at the time of service provides a formal record that courts are accustomed to seeing.

Consequences of defective service

A notice that is invalid, wrong form, wrong address, insufficient notice period, wrong method of delivery, missing ground, has no legal effect. The court will refuse a possession order even where the underlying grounds for possession are fully made out. The landlord must then serve a fresh notice and restart the process, losing months and, where arrears are involved, incurring further financial exposure. Under the Renters' Rights Act 2025, serving a defective notice can also constitute an offence in certain circumstances, the gov.uk guidance specifically warns that landlords should not treat Section 8 as a routine form-filling exercise. Professional landlords treat notice as a precise procedural step: right form, correct dates, confirmed addresses, service method that can be proved.

For a full guide to the possession process under the current regime, see our article on evictions in 2026.

Frequently asked questions

Can I serve notice by email? 

Only if the tenancy agreement expressly permits service by email and the tenant has provided an email address for that purpose. Even then, posting a physical copy to the property as well is advisable. Email service is treated as same-day if sent before 4:30pm on a business day; after that time it is treated as the next business day.

What is Form 3A? 

Form 3A is the prescribed form for a Section 8 possession notice, introduced by the Renters' Rights Act 2025 from 1 May 2026. It replaces earlier Section 8 forms and must specify the legal ground being relied on, the date from which the notice period runs, and the date after which the landlord may apply to court. Use of the correct prescribed form is mandatory, a notice on an outdated form is invalid.

Does serving notice end the tenancy? 

No. Serving notice does not itself terminate the tenancy. The tenant may choose to leave voluntarily during the notice period, which resolves the matter. If the tenant remains after the notice period expires, the landlord must apply to court for a possession order before taking any steps to recover the property. Entering the property or changing the locks without a court order is unlawful eviction, regardless of whether the notice was valid.