Eviction notice: reasons it might be invalid

Not every eviction notice is legally valid. Landlords sometimes serve notices that do not meet the legal requirements, and an invalid notice cannot lead to a lawful eviction. Here are the common reasons a notice might be invalid and how to challenge one.

Key facts

• Ministry of Justice figures show landlords made 22,733 possession claims in the county courts of England and Wales in January to March 2026, with 6,888 repossessions carried out by county court bailiffs. Mortgage and landlord possession statistics, GOV.UK
• In the same quarter there were 16,848 possession orders and 10,172 warrants, each down on the same period a year earlier. Mortgage and landlord possession statistics, GOV.UK

Why does this matter?

If your landlord serves an invalid eviction notice and then applies to court for a possession order, you can raise the invalidity as a defence. If the notice is invalid, the court cannot grant possession, the landlord must start again with a valid notice.

This does not mean you never have to leave, but it does mean the landlord cannot rush the process and the timeline resets from when a valid notice is served.

Common reasons a section 21 notice may be invalid

Wrong notice period: a section 21 notice must give at least 2 months' notice (or longer in some circumstances, such as during certain protected periods). A shorter notice period is invalid.

Served too early: a section 21 notice cannot be served within the first 4 months of the original tenancy.

No gas safety certificate: the landlord must have given you a valid gas safety certificate at the start of the tenancy or before the notice is served (depending on when the tenancy started). If they have not, the section 21 notice may be invalid.

No Energy Performance Certificate (EPC): the landlord must have given you an EPC before the tenancy started. If not, a section 21 notice may be invalid.

No How to Rent guide: landlords must give you the How to Rent checklist at the start of the tenancy. If they did not, a section 21 notice may be invalid.

Deposit not protected or prescribed information not served: if you paid a tenancy deposit and it was not protected in a government-approved scheme, or if you were not given the prescribed information about the scheme within 30 days of paying the deposit, the landlord cannot validly serve a section 21 notice until this is corrected.

Section 21 served after a revenge eviction complaint: if you made a complaint to the council about disrepair within 6 months before the notice was served, and the council served an Improvement Notice or Emergency Remedial Action notice on the landlord, the section 21 notice is invalid (this is the retaliatory eviction protection under the Deregulation Act 2015).

Wrong form: the landlord must use Form 6A for assured shorthold tenancies in England. Using a different form or a form that does not comply with the prescribed requirements may invalidate the notice.

Out of time: a section 21 notice expires 6 months after it was given (for periodic tenancies). If the landlord does not apply to court within that period, they need to serve a new notice.

Common reasons a section 8 notice may be invalid

Wrong notice period: each ground for possession has its own notice period. Using a shorter period than the law requires invalidates the notice for that ground.

Wrong or missing grounds: the notice must specify the grounds for possession (from Schedule 2 of the Housing Act 1988) and give sufficient particulars of each ground relied on. A notice that specifies grounds too vaguely may be invalid.

Served on the wrong address: the notice must be properly served. If there is a dispute about whether you received it, this can be relevant.

Rent arrears calculated incorrectly: if the landlord is using Ground 8 (mandatory possession for rent arrears), the arrears figure at the date of the notice and at the date of the hearing must meet the threshold, errors in the calculation can undermine the ground.

What should you do if you think your notice is invalid?

1. Do not ignore the notice, a court hearing date will follow if the landlord applies
2. Check the notice carefully against the above list
3. Get legal advice as soon as possible, from a housing solicitor, Citizens Advice, or Shelter
4. If you are called to court, attend and raise your defence in writing and in person
5. If you have an ongoing disrepair issue, this may also be relevant, particularly in relation to retaliatory eviction

Can disrepair affect an eviction notice?

Yes. If the landlord is trying to evict you partly to avoid having to carry out repairs, this may constitute a retaliatory eviction. Additionally, if you have an ongoing disrepair claim, you can raise this as a counterclaim in possession proceedings.

When should I contact Support for Tenants?

If you have received an eviction notice and your home has disrepair that your landlord will not fix, call us on 0800 030 4669. We can advise on whether a disrepair claim is available alongside or after the possession proceedings.

No upfront cost. You only pay if you win, and the fee comes out of the compensation. If you don't win, you pay nothing.

Sources

• Housing Act 1988 (legislation.gov.uk)
• Deregulation Act 2015 (legislation.gov.uk)

Related articles

• Defending a possession claim as a tenant
• Retaliatory eviction explained