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

Tax Reform Information and Services

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

Popular Services from Internal Revenue Service

Apply for EIN Number

Tax Preparation Tools 

Top Tax Forms

Form 1040

Form W-9

Make a Payment 

Where is My Refund? 

Parent Agency

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