Service tax effective date appointed as commencement for levy on new and amended taxable services under the Finance Act. The Central Government, exercising powers under clauses (A) and (B) of section 90 of the Finance Act, 2008, appoints 16 May 2008 as the date on which the Act's provisions shall come into force, applying to the levy of service tax on newly specified services and amendments to existing taxable services, by Notification No. 18/2008 dated 10 May 2008.