en.wikipedia.org/wiki/Internal_Revenue_Service

As early as the year 1918, the Bureau of Internal Revenue began using the name "Internal Revenue Service" on at least ...

www.irs.gov

The Internal Revenue Service is the nation's tax collection agency and administers the Internal Revenue Code enacted by Congress. ... IRS highlights tax reform changes affecting small businesses. IRS2Go Mobile App. The official mobile app ...

www.irs.gov/help/telephone-assistance

Important: Before you call, check out the topics people ask about most.

www.irs.gov/payments/view-your-tax-account

Instructions on how to view your tax account information.

www.irs.gov/forms-instructions

The official source of IRS tax forms and publications. The links provide ...

www.irs.gov/help/contact-your-local-irs-office

Click on your state for office locations, hours of service and other local ...

www.irs.gov/payments

Pay with your bank account for free, or choose an approved payment ...

www.irs.gov/individuals/get-transcript

You can get a transcript to view your tax account transactions, line-by-line tax ...

www.irs.com

Helpful, easy to understand IRS tax information and essential tax products and services all in one place. File your tax return or find your refund.