After reporting strong earnings growth, a high return on equity and steady growth in its debt ledger in the year to June, receivables manager Credit Corp produced more of the same during the December half.Credit Corp reported yesterday that it earned a net profit of A$16.7 million for the six months to December - up 28.1 per cent on the previous corresponding period.After adjusting for a litigation settlement, underlying profit was up 12 per cent. Revenue was up six per cent.The company purchased A$72 million of debt ledgers, which was 54 per cent more than it purchased during the previous corresponding period.The face value of the company's debt portfolio rose from $3.4 billion to $3.8 billion over the year to December. The value of payment arrangements rose from $627 million to $666 million.Last year, the company started a consumer lending business, MoneyStart, with a focus on borrowers with impaired credit records. The book stood at $6 million at June 30 and rose to $12 million at December 31.