For United States of America Internal Revenue Service information on the Taxation of Business Entities, Individuals, and Not-for-Profit Firms click here.

IRS Forms and Instructions Instructions Form 1040   Instructions for Form 1040, U.S. Individual Income Tax Return, and Schedules A, B, C, D, E, F, J, and SE Form 1040EZ   Income Tax Return for Single and Joint Filers With No Dependents Instructions Form 1040-EZ   Instructions for Form 1040-EZ, Income Tax Return for Single and Joint Filers With No Dependents Form 1041   U.S. Income Tax Return for Estates and Trusts Instructions Form 1041   Instructions for Form 1041, U.S. Income Tax Return for Estates and Trusts, and Schedules A, B, D, G, I, J, and K-1 Form W-7   Application for IRS Individual Taxpayer Identification Number   IRS Publications Publication 1   Your Rights As A Taxpayer Publication 509   Tax Calendars Publication 4492   Information for Taxpayers Affected by Hurricanes Katrina, Rita, and Wilma