Federal

Federal Tax Forms
Find the tax form you are looking for in a variety of formats at the IRS website.

Free Online Filing
This site from the Internal Revenue Services is about Free File, an "online tax preparation and electronic filing through a partnership agreement between the IRS and the Free File Alliance, LLC. In other words, you can e-file... free." This site explains eligibility requirements for this free service, steps to get started, and a list of related FAQs.

GovSpot.com's tax center
Find tax forms (Federal and all 50 States,) common questions, and advice on how to deal with "tax headaches."

NOLO: Taxes & Audits
Includes tips on dealing with the Internal Revenue Service, filing returns, audits, appeals, tax bills, and tax crimes, and has links to the Nolo information on small business taxes, estate and gift taxes, and homes as tax shelters.