SDLTM10025 | Introduction: Scope of stamp duty land tax on leases: Pre- implementation leases
From HM Revenue & Customs · Stamp Duty Land Tax Manual
A lease that is expressly granted, or is treated as having been granted, for the first time on or after 1 December 2003 is potentially chargeable to stamp duty land tax (SDLT).
Transactions which are treated as grants of a new lease for SDLT purposes include:
renewal
extension and
variation of a lease (amounting to surrender and regrant (refer to SDLTM14120))
Where the effective date of these transactions is on or after 1 December 2003, they are subject to the SDLT provisions. Refer to SDLTM10045 for further details.
A lease will not be subject to SDLT if it was granted before 1 December 2003 but continues after that date because it:
continues by operation of law e.g. under the Landlord & Tenant Act 1954
is a statutory periodic lease (e.g. assured shorthold tenancy) which continues after the expiration of the fixed term or
is otherwise held over.