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Tax Sites on the Web
Code and Regs
A very handy place to find the tax code and IRS regulations is
Intuit on their Tax Almanac web site.
Internal Revenue Service:
Federal tax forms:
IRS Bulletins (Rulings, etc.):
Note: the IRS provides PDF versions of bulletins dating back to 1995.
Applicable Federal Rates:
Apply for Employer Identification Number online, fill-in SS-4:
Tax Court Cases:
Exempt Organizations Listing, Publication 78:
Treaties, information about and link to Pub 901:
IRS Publication 901 regarding treaties:
Frequently Asked Tax Questions
IRS information for small businesses
IRS tax topic page
IRS main page:
USCIS form I-9:
For tax forms and publications, you will need the Adobe Acrobat Reader.
In case you don't already have it, here's where you can get it.