Tax Gateway

Proprietary Content

Inspectel publishes original research works & peer-reviewed legal position-papers on case-specific matters of tax controversy. Please contact us to discuss our customized Tax Intelligence solutions.

Open Access Content

Inspectel provides easy, one-stop, access to core open-source tax information published by Federal, State, and Local tax authorities and US Government institutions through the following links:

Supreme Court

The Supreme Court of the United States is the highest federal court of the United States. Established pursuant to Article III of the United States Constitution in 1789, it has ultimate (and largely discretionary) appellate jurisdiction over all federal courts and over state court cases involving issues of federal law, plus original jurisdiction over a small range of cases. In the legal system of the United States, the Supreme Court is the final interpreter of federal constitutional law, although it may only act within the context of a case in which it has jurisdiction.

US Tax Court

The mission of the United States Tax Court is to provide a national forum to expeditiously resolve disputes between taxpayers and the Internal Revenue Service while carefully considering the merits of each case and ensuring the uniform interpretation of the Internal Revenue Code. The Court is committed to providing taxpayers, most of whom are self-represented, with a convenient place of trial and, when their disputes involve relatively small amounts of tax dollars, simplified procedures.

Federation of Tax Administrators

The Federation of Tax Administrators (FTA)’s mission is to improve the quality of state tax administration by providing services to state tax authorities and administrators. Individual and corporate income tax rates for all states can be found on this site.


On Nov. 19, 2017 Congress became master of its domain. Legislative information migrated from Thomas housed in the Library of Congress website to, a dedicated system that contains text of legislation, member information, committee reports, a searchable online version of the Congressional Record and more.

The United States Senate

The United States Senate offers resources about legislative and tax issues. The finance section has detailed information about legislation being considered by the Senate Finance Committee.

Joint Finance Committee Analysis of Pending Tax Legislation

The Joint Finance Committee Analysis of Pending Tax Legislation report is found on this site in the General Explanation of the Joint Committee on Taxation, U.S. Congress. The report was written by the Joint Committee on Taxation.

United States Code

The United States Code is a consolidation and codification by subject matter of the general and permanent laws of the United States. It is prepared by the Office of the Law Revision Counsel of the United States House of Representatives.


The Federal Communications Commission regulates interstate and international communications by radio, television, wire, satellite, and cable in all 50 states, the District of Columbia and U.S. territories. An independent U.S. government agency overseen by Congress, the Commission is the federal agency responsible for implementing and enforcing America’s communications law and regulations.

Additional Resources

IRS Website
Main Page
Forms and Publications
Taxpayer Assistance Centers
State Department Website
Alabama Department of Revenue
Alaska Department of Revenue
Arizona Department of Revenue
Arkansas Department of Finance and Administration
California Franchise Tax Board
Colorado Department of Revenue
Comptroller of Public Accounts
Connecticut Department of Revenue Services
Delaware Division of Revenue
District of Columbia
Florida Department of Revenue
GeorgiaDepartment of Revenue
State of Hawaii Department of Taxation
IdahoState Tax Commission
Illinois Department of Revenue
Indiana Department of Revenue
Iowa Department of Revenue & Finance
Kansas Department of Revenue
Kentucky Revenue Cabinet
Louisiana Department of Revenue & Taxation
Maine Revenue Services
Maryland Comptroller of the Treasury
Massachusetts Department of Revenue
Michigan Department of Treasury
Minnesota Department of Revenue
MississippiState Tax Commission
Missouri Department of Revenue
Montana Department of Revenue
Nebraska Department of Revenue
State of New Hampshire, Department of Revenue Admin
New Jersey Division of Revenue
New Mexico Taxation & Revenue Department
New York Department of Tax and Finance
North Carolina Department of Revenue
North Dakota Office of State Tax Commissioner
Ohio Department of Taxation
Oklahoma Tax Commission
Oregon Department of Revenue
Pennsylvania Department of Revenue
Rhode Island Division of Taxation
South Carolina Department of Revenue
Tennessee Department of Revenue
UtahState Tax Commission
Vermont Department of Taxes
VirginiaDepartment of Taxation
West Virginia Department of Tax & Revenue
Wisconsin Department of Revenue