In Norway, Value-added tax (VAT), or Merverdiavgift (MVA) in Norwegian language, was introduced on on 19 June 1969 and became effective from 1st January 1970.
Since its introductions only few significant amendments took place, the first in 2001 and the second in 2009 which changed more than 130 articles in the VAT Act.
Source Taxback International
