The main web site for the U.S. Internal Revenue Service (IRS) is:
www.irs.gov
To contact the IRS by phone call:
800-taxform or 800-829-3676
To obtain IRS forms and publications in an accessible format or to learn more about accessibility and the IRS services go to:
www.irs.gov/accessibility
The accessible versions for a number of IRS publications and forms that might be of particular interest to the elderly or disabled can be found at:
Disability Related Products from the IRS
Those with visual or other disabilities might also want to look at form 907, "Tax Highlights for Persons with Disabilities" which is also on that page.
The IRS also uses various social media outlets to distribute its message including:
Learn about the IRS2Go app for smart phones by going to:
About the IRS2Go app from the IRS site
If you are interested in a career at the IRS or seeing what job opportunities they offer go to:
http://jobs.irs.gov