Leaving: two months' notice
To end a periodic tenancy you give two months' notice, in writing (a letter, email or text is fine), on the rent due day or the day before. You keep paying rent during the notice. You and your landlord can agree in writing to a shorter notice or an earlier end.
Source: GOV.UK: Renters' Rights Act overview for tenants. Checked 18/10/2026. In force from 01/05/2026.
Check your contract against this
Legal information, not legal advice. For your own situation, Shelter (england.shelter.org.uk) and Citizens Advice (citizensadvice.org.uk) give free advice.