Ending your tenancy
If you want to end your tenancy you usually have to give 28 days notice in writing to your landlord (make sure you keep a copy of the letter). If you have a fixed term agreement such as an Assured Shorthold Tenancy you may have to pay rent until the end of your agreement, unless it contains a clause allowing you to leave early.
For example, if you leave after three months of a six month tenancy you may have to pay rent for the remaining three months, if your landlord has been unable to re-let the property during the period of your tenancy. Once the fixed term period is up you need only give 28 days' notice that you wish to leave. Remember to keep a copy of the letter.
For further information, contact your local Citizens Advice Bureau or see the Where can I get advice about my Tenancy page.