IRS
The US government agency responsible for tax collection and tax law enforcement.
Includes income...
GuideStar
Free service with information on the programs and finances of more than 600000
American charities...
Nonprofit Organization and IRS form 990 Nonprofit Software
Offers IRS form 990 software for nonprofit organizations.
1040.com
An online tax resource dedicated to helping people find the information, news,
and forms they need...

Form 1023 Help
Page by page instructions and other help for non-profit organizations filling
out an application for...
Oregon Department of Revenue
Provides online tax information, forms, publications, and current employment openings.
State Tax Forms
Organized by state.
Federal and State Tax Forms Directory
Links to official sites for all state and federal tax forms. From the LSU Libraries.

Franchise Tax Board
Provides state personal and business income tax forms and information.
1120S Accountant, Inc.
IRS form 1120s software for Subchapter S corporation tax returns.
Historical Securities Pricing Estimates for IRS Form 706
Delivers historical securities pricing valuations for CPAs filing estate tax returns.
Uncle Fed's Tax Board
Providing information on the United States tax system, filing a tax return, and
problems that may...
SaveWealth.com: Tax Forms Center
Includes IRS tax forms, state income tax forms, and tips to reduce your income
tax bill.
Click Industries, Ltd.
Incorporation, LLC and Professional Corporation formation services. Located in
Saint Paul, MN.
Don Fitch, CPA
Firm specializing in personal and business tax negotiation, including IRS Offers
in Compromise, installme...
freeERISA.com
A database of Form 5500s filed by private United States employers, and information
on public pension funds.