Where to File Paper Tax Returns

Tax Professionals - Where to File Individual Returns for Your Clients
Addresses by state for Forms 1040, 1040A, 1040EZ, 1040ES, 1040V, amended returns, and extensions (also addresses for taxpayers in foreign countries, U.S. possessions, or with other international filing characteristics)

Individual Taxpayers - Where to File Your Own Individual Return
Addresses by state for Forms 1040, 1040A, 1040EZ, 1040ES, 1040V, amended returns, and extensions (also addresses for taxpayers in foreign countries, U.S. possessions, or with other international filing characteristics)

Where to File - All Types of Tax Returns (By Form Number)
Mailing addresses for all types of returns: individual, corporation, partnership, and many others (search for address based on form number)