On September 22, an updated report by the Congressional Research Service was filed with Congress, The Cost of Iraq, Afghanistan, and Other Global War on Terror Operations Since 9/11. From the introduction:

Through FY2006, Congress has appropriated a total of about $437 billion for military operations, base security, reconstruction, foreign aid, embassy costs, and veterans' health care for the three operations initiated since the 9/11 attacks: Operation Enduring Freedom (OEF) covering Afghanistan and other Global War on Terror (GWOT) operations, Operation Noble Eagle (ONE) providing enhanced security at military bases, and Operation Iraqi Freedom (OIF), Iraq.

In the last week of September 2006, the House and Senate are slated to consider the conference versions of the FY2007 defense appropriations bill, H.R. 5631, and the national defense authorization bill (H.R. 6122/S. 2766), both of which include an additional $70 billion for war costs. .... The Administration is expected to submit a FY2007 supplemental for additional war costs some time next year.

If the FY2007 defense appropriation bill passes, total war appropriations for all three operations would reach about $507 billion. Another $2 billion is included in other appropriations bills for foreign and diplomatic operations in Iraq and Afghanistan and VA medical costs. In its July 2006 mid-session update, the Office of Management and Budget (OMB) estimates that war funding in FY2007 will total $110 billion, including bridge funding. Based on this OMB projection, cumulative war funding for all of FY2007 would reach about $549 billion. OMB also assumes a $50 billion bridge fund for FY2008.