Fixed-term tenancies are for a specific length of time. In most cases, they cannot be ended early by either party. If you are a party to a fixed-term tenancy and want to end the agreement early, you need to be aware of what your rights and responsibilities are.
I want to end my fixed-term tenancy earlier than the agreed date
Fixed-term tenancies are for a specific length of time and cannot be ended with notice unless:
Both the landlord and tenant agree, or
The landlord allows the tenant to assign or sublet the premises, or
The Tenancy Tribunal allows it.