Fannie Mae said that the current housing crisis had added to its woes to the tune of $5.3bn in credit expenses.
The latest losses at the firm - which came in at more than three times analysts' estimates - followed a $2.2bn loss for the first three months of the year.
"Our second-quarter results reflect challenging conditions in the housing and mortgage markets that began in 2006 and have deepened through 2007 and 2008," said Daniel H Mudd, president and chief executive officer of Fannie Mae.
Cost cutting
He added that the firm had also taken steps to raise an additional $7bn to help it tackle the "most difficult US housing market in more than 70 years".
As part of the plan Fannie Mae is slashing its dividend by more than 85% to 0.05 cents, raising its fees and has taken steps to cut its costs by 10%.
The group also said it would stop purchasing 'Alt-A' loans - loans made to borrowers with good credit but little proof of their income, or people who either put down a small deposit, or no deposit, for their loan.
But there was little to offer hope in near-term future with Fannie Mae warning that increased volatility in capital markets and deteriorating credit conditions meant that it would face more losses.
Bail-out
Last month, the federal government offered a financial lifeline to the two beleaguered companies offering to extend their line of credit.
However, the financial aid may leave the taxpayer facing a bill of $25bn over the next two years.
"The taxpayer is stuck if they have to be bailed out," John Raines, deputy director of political risk for Exclusive Analysis told the BBC.
He added that reports had suggested the actual cost could end up being anywhere in the region of between $10bn to $100bn.
"Right now, Fannie Mae says it has the capital to weather the storm, but its looking more and more stormy by the day."
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