The debtor finance market was flat in 2013, with invoice discounting and factoring turnover virtually unchanged from 2012. The industry continued to struggle to regain the momentum it had before the financial crisis.The Debtor and Invoice Finance Association reported that the sector's turnover for the year to December was A$63.25 billion, compared with turnover of $63.29 billion in 2012.The bulk of the business ($57.5 billion) was invoice discounting, where the seller of the trade debts retains the accounting and debt collection functions.Factoring (where the finance company takes over the accounting and debt collection) accounted for $5.7 billion of turnover.The total number of clients fell through the year - down from 4559 at the end of the March quarter to 4503 at the end of the year.The biggest markets for debtor finance were wholesale trade, which accounted for 35 per cent of turnover, manufacturing (20 per cent of turnover), and labour hire (11 per cent).