The fashion and home store, which has three stores in Leeds, Trinity Leeds, White Rose Shopping Centre and Crown Point Shopping Park, reported an 8.1 per cent drop in annual pre-tax profits to £726.1 million, while total sales slid 0.5 per cent to £4.1 billion.
Sales were dragged lower by a 7.9 per cent slump in revenue at its shops to £2.1 billion, while online revenue grew 9.2 per cent to £1.88 billion, helping to soften the blow.
Next pointed to “product ranging errors and omissions” as contributing to the poor showing, a result of the firm failing to provide customers with key items, as well as the shift away from consumer spending on clothing.
Chief executive Lord Simon Wolfson said: “In many ways 2017 was the most challenging year we have faced for 25 years.
“A difficult clothing market coincided with self-inflicted product ranging errors and omissions.
“At the same time, the business has had to manage the costs, systems requirements and opportunities of an accelerating structural shift in spending from retail stores to online.”
Consumers and businesses have also been hammered by rising Brexit-fuelled inflation, with Next having to pay up to 12 per cent more for its products as a result of the pound’s post-referendum slump.
It jacked up shop prices 4 per cent as a result last year, but Next said it expects some relief towards the end of the year as inflation eases.
Next also warned that 2018 will remain tough as the sector remains under intense pressure, saying the “wider economy, clothing market and high street look set to remain challenging”.
Shares were up nearly 4 per cent in morning trading to 4,801p as investors digested the news.
George Salmon, equity analyst at Hargreaves Lansdown, said: “The headwinds facing the clothing sector, which include cost inflation, weak high street footfall and tighter consumer spending, are well known.
“However, the fact Next says it’s endured the toughest year since its near-death experience in the early 1990s, underscores the extent of these challenges.”
The figures come at a time of growing concern for brick-and-mortar retailers.
As well as the administrations of Toys R Us and Maplin, Debenhams, Mothercare and Carpetright have all issued profit warnings this year.
Also, a spate of firms including Jamie’s Italian, burger chain Byron and Prezzo have shut hundreds of stores as consumer confidence dives in the face of Brexit-fuelled inflation.