President Obama signed the bill extending the closing deadline for claiming the federal homebuyer tax credit.HR 5623, the Homebuyer Assistance and Improvement Act of 2010, gives homebuyers who were under contract by April 30, 2010 until Sept. 30, 2010 to close their home purchase and claim the federal homebuyer tax credit.
July 1, 2010 BREAKING NEWS:

Tax credit closing deadline extension passes Congress.
Home buyers eligible to claim the tax credit who were under contract by April 30 may have until Sept. 30 to close the deal, if President signs extension.