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For you and your family
Standard mileage and other information

Forms and Instructions

Individual Tax Return
Instructions for Form 1040
Request for Taxpayer Identification Number (TIN) and Certification
Request for Transcript of Tax Return

 

Employee's Withholding Allowance Certificate
Employer's Quarterly Federal Tax Return
Employers engaged in a trade or business who pay compensation
Installment Agreement Request

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Rules Governing Practice before IRS

Where To File - Forms Beginning With The Letter C

Note: Some addresses may not match a particular instruction booklet or publication. This is due to changes being made after the publication was printed. This site will reflect the most current Where to File Addresses for use during Calendar Year 2019.

Addresses for Forms Beginning with the Letter C
Form Name
(For a copy of Form, Instruction, or Publication)
Address to Mail Form to IRS:
CT-1 Employer's Annual Railroad Retirement Tax Return Department of the Treasury
Internal Revenue Service Center
Kansas City, MO 64999-0048
CT-1 X  Adjusted Employer's Annual Railroad Retirement Tax Return or Claim for Refund Department of the Treasury
Internal Revenue Service Center
Cincinnati, OH 45999-0007
CT-2 Employee Representative's Quarterly Railroad Tax Return Department of the Treasury
Internal Revenue Service Center
Kansas City, MO 64999-0049