Internal Revenue Service

The Internal Revenue Service (IRS) administers and enforces U.S. federal tax laws.

Agency Details

Acronym:

IRS

Website:

Internal Revenue Service (IRS)

Contact:

Contact the Internal Revenue Service

Help With Tax Questions

Taxpayer Advocate Service

Report Tax Fraud

IRS Hotlines

International IRS Offices

Where to File Paper Tax Returns

Local Offices:

Find a Taxpayer Assistance Center Near You

Main Address:

1111 Constitution Ave., NW
Washington, DC 20224

Phone Number:

1-202-622-5000

Toll Free:

1-800-829-1040

TTY:

1-800-829-4059

Forms:

Internal Revenue Service Forms

Government branch:

Executive Department Sub-Office/Agency/Bureau

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Popular Services from Internal Revenue Service

Apply for EIN Number

Top Tax Forms

Form 1040

Form W-9

Make a Payment 

Where is My Refund? 

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