WASHINGTON -- The Treasury Department said it has about $134.5 billion left in its financial-rescue fund, giving the Obama administration a cushion as it implements expensive programs aimed at unlocking credit markets and boosting ailing industries.

The figure means that about 81% of the $700 billion in the Troubled Asset Relief Program, or TARP, has been committed. It also means that the Obama administration may not have to go to Congress to request additional funds, at least until well into the year. Many lawmakers who criticized...