IRS CP77 Notice: Understanding Your Increase in Tax Due

Receiving an IRS CP77 notice means the Internal Revenue Service has made changes to your tax return that resulted in additional tax owed. This notice explains what changes were made and how to respond appropriately.

What is an IRS CP77 Notice?

The IRS CP77 notice is sent when the IRS modifies your tax return, resulting in additional taxes, penalties, or interest owed.

Key Features of the CP77 Notice:

  • Detailed explanation of changes made to your return
  • Comparison between your original return and IRS adjustments
  • Breakdown of additional taxes assessed
  • Penalty and interest calculations
  • Payment options and dispute procedures
Common Reasons for CP77 Notices

The IRS typically issues CP77 notices for:

  • Unreported income (1099s, W-2s, investments)
  • Mathematical errors on your return
  • Disallowed deductions or credits
  • Filing status changes
  • Tax calculation adjustments
Your Response Options

Option 1: Agree and Pay

If the adjustments are correct, you can:

  • Pay the full amount by the due date
  • Set up a payment plan if needed
  • Request penalty abatement if applicable

Option 2: Dispute the Changes

If you believe the IRS is wrong, you can:

  • File a written protest within 60 days
  • Provide supporting documentation
  • Request reconsideration of adjustments
Critical Deadlines
  • 21 days to pay without additional interest
  • 60 days to file formal dispute
  • 30 days for expedited resolution requests

Missing deadlines can result in additional penalties and collection actions.

How We Can Help with Your CP77 Notice

Our services include:

  • Detailed review of IRS adjustments
  • Strategic response planning
  • Professional dispute resolution
  • Penalty abatement requests
  • Full IRS representation

Don't Let IRS Adjustments Cost You More Than Necessary

Many CP77 notices contain errors that can be successfully challenged with professional help.

Call 972-519-0041 now for a free review of your notice.