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Understanding Your CP163 Notice

You received this notice to remind you of the amount you owe in tax, penalty and interest.

What you need to do

  • Read your notice carefully ― it will explain how much money you owe on your taxes.

You may want to...

Answers to Common Questions

  • Am I charged interest on the money I owe?
    Yes, interest accrues on your unpaid balance until you pay it in full.

  • Do I receive a penalty if I cannot pay the full amount?
    Yes, you receive a late payment penalty.

  • What happens if I cannot pay the full amount I owe?
    You can arrange to make a payment plan with us if you cannot pay the full amount you owe.

  • How can I set up a payment plan?
    Call the toll-free number listed on the top right corner of your notice to discuss payment options or learn more about payment arrangements here.


  • Tips for next year

    Consider filing your taxes electronically. Filing online can help you avoid mistakes and find credits and deductions for which you may qualify. In many cases, you can file free. Learn more about how to file electronically here.

Page Last Reviewed or Updated: 07-Dec-2015

How to get help

  • Call the 1-800, 1-866 or 1-888 number listed on the top right corner of your notice.
  • Authorize someone (e.g., accountant) to contact the IRS on your behalf using Form 2848.
  • See if you qualify for help from a Low Income Taxpayer Clinic.