Finance company Thorn Group has disclosed that its net profit for the year to March could be down by close to 40 per cent from the previous year's result.Thorn issued a statement to the Australian Securities Exchange yesterday, saying it would write off A$6.7 million of goodwill attributable to its 2011 acquisition of the debt collection agency NCML.NCML has not performed up to expectations and went through a "significant restructure" last year.Thorn is also closing its direct-to-market consumer lending business, which has suffered from high customer acquisition costs and weaker than anticipated credit quality.Thorn is preparing its 2015/16 financial report for release next month. It said group revenue and underlying EBITDA were up "slightly" on the previous year.Net profit is likely to be between $19 million and $21 million. The company made a net profit of $30.6 million in the year to March 2015.The company said it had a "clear strategy to improve profitability and return on capital with greater focus on core business divisions."Thorn managing director James Marshall said a statement: "Our primary business of consumer leasing and business finance provide attractive returns on capital and the measures we are taking ensure more capital can be devoted to these businesses to achieve growth."