• Office of Management and Budget (OMB)
  Has the mission of assisting the president in overseeing preparation of the federal budget, and to supervise its administration in executive branch agencies.
• Treasury Department's Tax Information
  Treasury Department's webpage has index of tax information
• Internal Revenue Service
  This U.S. Department of Treasury agency offers, in addition to tax forms and publications, Coordinated Issue Papers, (which, although not official policy statements, indicate current thinking of the IRS; the IRS Tax Code, Tax Regulations issued since August 1995, and Official Guidance, links to issues of the Internal Revenue Bulletin (IRB), back to July 2003, and other information and tax resources.
• Office of Comptroller of the Currency
  Offers research reports and publications on tax policy topics and issues.
• The Board of Governors of Federal Reserve System, an independent agency  
   
  
  Federal Reserve Banks, including the New York branch, offer papers and other research on topics such as tax policies.

U.S. Senate and U.S. House Committees relating to taxation:

• U.S. Congress Joint Committee on Taxation's work includes investigating the operation and effects of Internal Revenue taxes and the administration of these taxes; investigating measures and methods for the simplification of taxes; and review of any proposed refund or credit of income or estates and gift taxes, or certain other taxes referred to in IRS Code Section 6405 in excess of $1 million.

• U.S. Senate Finance Committee receives referrals of proposed legislation relating to "revenue measures generally."  Links are provided to legislation, hearings, press kits and a library of offical publications.
• U.S. House Committee on Ways and Means is responsible for holding hearings on proposed tax changes.  The tax policy subcommittee webpage has links to new tax laws, a newsroom and other information.

Two helpful Congressional related resources:

• Congress.gov: Legislative Information on the Internet, a service of the Library of Congress, provides searches text of public laws, bill summaries, pending legislation, the Congressional Record, and Committee Reports from the House, Senate and Joint Committee on Taxation, along with explanations of the legislative process.

• American Bar Association, Tax Section states it is the national voice of tax lawyers.  Much of the site is restricted to members. Keyword searches may lead to publications or testimonies. Publications not available through Newman Library resources may be requested through interlibrary loan.  ABA Daily News provides tax news, as well as other topics.

• American Institute of Certified Public Accountants has some information restricted to members but has a tax interest group that has some accessible resources.  The Big 4 public accounting firms, Deloitte, Ernst & Young, KPMG, and PWC, and other accounting firms, offer information relating to tax services and tax issues.

• U.S. Chamber of Commerce is concerned with tax issues for businesses and advocates for tax reforms.