The organisation’s latest Market Report shows sales of spirits in the year to May 14 were flat in volume but 6% up in value.
Sales of wine dropped 2% in volume over the same period, while value sales rose 3%.
The report also showed a 42% drop in sales of wine in the sub-£3 category, while sales at between £3 and £4 were 20% down over the year.
At the same time, wine sales between £4 and £5 rose 24%.
Chief executive Jeremy Beadles said: “This year’s further above inflation increases in excise duty and the rise in VAT and other taxes have really fed through to prices and millions of hard-pressed consumer know it only to well.”