Washington ? Fannie Mae needs another $15 billion in federal assistance, bringing its total to more than $75 billion. And worse, the mortgage finance company warned its losses will continue this year.

The rescue of Fannie Mae and sister company Freddie Mac is turning out to be one of the most expensive aftereffects of the financial meltdown. The new request means the total bill for the duo will top $126 billion.

And the pain isn’t over. Fannie warned Friday that it will need even more money from the Treasury, as unemployment remains high and millions of Americans lose their homes through foreclosure.

Fannie Mae reported Friday that it lost $74.4 billion, or $13.11 a share, last year, including $2.5 billion in dividends paid to the government. That compares with a loss of $59.8 billion, or $24 a share, a year earlier.

Fannie Mae, which was seized by federal regulators in September 2008, has racked up losses totaling $136.8 billion over the past three years.