50p/unit (10ml of alcohol) minimum, effective today, but they can easily increase the 50p rate at any time
The current UK alcohol duty rates are (before the cost of the product and VAT):
Low alcohol beer (not exceeding 2.8%) - 8.4p/unit
Beer - 19.1p/unit
Strong beer (above 7.5%) 24.8p/unit
Still cider of 7.5% alcohol 5.4p/unit
Still cider of 8.5% alcohol 7.2p/unit
Sparkling cider of 5.5% alcohol 7.3p/unit
Sparkling cider of 8.5% alcohol 32.9p/unit
Spirits 28.7p/unit
Wine of 13.5% alcohol 21.3p/unit
Sparkling wine of 11% alcohol 33.6p/unit
Basically the main outcome of this is to withdraw the big plastic bottles of cider from sale, as the price increases from £3.69/3 litres to £11.25/3 litres. Cider has historically had lower taxes to support UK apple growers.
Many cheap mass-produced beers will increase in price, as the minimum price is £2/litre for 4% beer, so 18 cans of Carling would cost at least £15.84 (currently £12, or £10 on special offer). 'Value beer', costing £1 for 4 * 440ml 2% ABV cans will go up to £1.76.
The cheapest wine allowed will be around £4.50/bottle.
A 40% ABV 1l bottle of spirits costs a minimum of £20.
This is obviously a HUGE increase (3x increase compared to 3l white cider)) in the cost of getting drunk for alcohol-dependent people, so not sure if there will be a black market in cider from England