The debtor finance market maintained its steady, if modest, growth of the past couple of years, with a 3.2 per cent increase in turnover in 2012.The Institute of Factors and Discounters reported yesterday that the combined turnover for factoring and discounting in the year to December was A$63.3 billion.The industry slumped in the aftermath of the financial crisis, as small- and medium-sized businesses (the core market for debtor finance companies) tightened their belts. It has recorded two years of growth since then.Debtor finance allows businesses to source funds using outstanding invoices as collateral.While turnover was up, the number of clients remained about the same throughout the year.