NEW YORK (CNNMoney.com) -- Mortgage finance giants Fannie Mae and Freddie Mac could need as much as $363 billion in government payments by 2013, regulators said Thursday.
The Treasury Department has pumped $148 billion into the agencies since the government took them over in 2008.
The new projections by the Federal Housing Finance Agency, based on a series of assumptions about home prices, indicate that Fannie and Freddie will require an additional $73 billion to $215 billion before 2013.
But the net loss to taxpayers is expected to be much lower, Treasury said.
For one, Fannie and Freddie will continue to turn around and pay dividends on stock owned by Treasury.
Also, Treasury believes that under the most likely scenario for the housing market, taxpayers will be on the hook for only about $20 billion.
And now the federal housing agency is offering projections on how much more money the government-backed mortgage companies will need to maintain positive net worth.
"These projections are intended to give policymakers and the public useful snapshots of potential outcomes for the taxpayer support of Fannie Mae and Freddie Mac," said FHFA Acting Director Edward DeMarco in a statement.
Of course, it's the taxpayer that is funding the bailout, and DeMarco says the report is intended to increase public understanding.
"FHFA is releasing these projections to enhance public understanding of Fannie Mae's and Freddie Mac's financial performance," DeMarco said.
The Congressional Budget Office said in a September report that propping up Fannie and Freddie is expected to cost taxpayers $53 billion between 2011 and 2020.
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