Information For...

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

Popular For Tax Pros

Amend/Fix Return
Apply for Power of Attorney
Apply for an ITIN
Rules Governing Practice before IRS

Understanding Your CP80 Notice

We credited payments and/or other credits to your tax account for the tax period shown on your notice. However, we haven't received your tax return.

What you need to do

If you are required to file this tax return:

  • Please file today. Send your signed tax return to the address shown on the top of your notice.

  • Answers to common questions

    What if I have already filed this return?
    Please send a newly-signed copy to the address shown on the top of your notice.

    What if I want the credit transferred to another tax form, tax period or tax identification number?
    Please call us at 1-800-829-8374 to give us details of the account to which the credit should be transferred.

Printable samples of this notice (PDF)

How to get help