Congressional Budget Office Cost Estimate: S. 2611, Comprehensive Immigration Reform Act of 2006 [open pdf - 201KB]
This is the Congressional Budget Office Cost (CBO) Estimate as introduced on April 7, 2006. From the Summary: "The Comprehensive Immigration Reform Act of 2006 would amend laws governing immigration, authorize numerous initiatives to improve enforcement of those laws, and increase the limits on legal immigration. Implementing those changes would increase both direct spending (i.e., mandatory spending) and discretionary spending (i.e., spending subject to annual appropriation action). S. 2611 also would affect federal revenues, directly through enactment of the bill's provisions, by increasing the size of the labor force, and through other effects of the legislation on the U.S. economy. CBO and the Joint Committee on Taxation (JCT) estimate that enacting this legislation would increase direct spending by $13 billion over the 2007-2011 period and by $54 billion over the 2007-2016 period."
Congressional Budget Office: http://cbo.gov