The trade body met with the financial secretary, John Healey , to urge a continuation of the government's policy in this year's Budget on March 21.
Narrowing the duty gap aids the competitiveness of Scotch whisky producers by promoting tax fairness in the domestic drinks market, according to the SWA. It also argues that increasing alcohol tax fairness allows distillers to continue to invest with confidence in their brands and businesses.
Gavin Hewitt, SWA chief executive said: " In recent years, the Chancellor has acted to narrow the duty gap in the UK alcoholic drinks market, promoting a fairer tax system and supporting Scotch whisky industry investment and competitiveness. The SWA is urging him to maintain his welcome commitment."