See also:
Internal Revenue Services Forms and Publications
irs.gov
Includes all US federal tax forms and instructions, including W-2, W-4, 1040, 1040EZ, 1099, and 4868.
1040.com
1040.com
An online tax resource dedicated to helping people find the information, news, and forms they need to complete their taxes. Contains downloadable tax forms.
Federal and State Tax Forms Directory
lib.lsu.edu
Links to official sites for all state and federal tax forms. From the LSU Libraries.
SaveWealth.com: Tax Forms Center
savewealth.com
Includes IRS tax forms, state income tax forms, and tips to reduce your income tax bill.