Information For...

For you and your family
Individuals abroad and more
EINs and other information

Filing For Individuals

Information For...

For you and your family
Standard mileage and other information

Forms and Instructions

Individual Tax Return
Request for Taxpayer Identification Number (TIN) and Certification
Single and Joint Filers With No Dependents
Employee's Withholding Allowance Certificate


Request for Transcript of Tax Returns
Employer's Quarterly Federal Tax Return
Installment Agreement Request
Wage and Tax Statement

Popular For Tax Pros

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

Understanding Your CP127 Notice

We made changes to your Form 1042, Annual Withholding Tax Return for U.S. Source Income of Foreign Persons, because we found a miscalculation. Our changes don’t affect the amount of tax you owed.

What you need to do

  • Read the notice carefully.
  • Compare the figures on the notice with your tax return.
  • Contact us within 10 days of the date of the notice if you disagree with the changes we made. Please have your account information available when you call.
  • Correct the copy of your tax return that you kept for your records if you agree with our changes. Keep this notice for your records.

You may want to

Download a copy of Instructions for Form 1042. If you need additional forms or publications, you can find them here, or you can call 1-800-TAX-FORM to request them by mail.

Answers to Common Questions

What should I do if I have been charged a penalty and I don’t agree?

If we charged a penalty and you would like us to consider removing it, you must send us a written request. When you write, identify the penalty you would like us to reconsider and explain the reasons why we should remove it.

Tips for next year

  • Consider filing your taxes electronically. Filing online can help you avoid mistakes. You can find information about filing options here.
  • Review your return for accuracy before mailing it to us.

Tax publications you may find useful

Printable samples of this notice (.pdf)

How to get help