Answered By: Lippincott Library
Last Updated: Jun 24, 2016     Views: 15

Use Intelliconnect (formerly CCH Internet Tax Research Network). For an overview of Intelliconnect, take a look at Lippincott's Datapoints blog post Just in Time for April 15: Federal Tax Research.

For historical tax information, check out Taxation and Economic Reform in America, A Historical Archive 1781-2009

Search the IRS Tax Code, Regulations, and Official Guidance, as well as TaxStats

Use the IRS' Audit Technique Guides

Go to IRS Tax Forms and Instructions

Intelliconnect  has sample business forms.  Click on tools -> online forms.

Look at the Tax Policy Center