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 CP63 Notice

What this notice is about

We're holding your refund because you have not filed one or more tax returns and we believe you will owe tax.

What you need to do

  • File your personal tax return immediately or explain to us:
    • why you're filing late
    • why you don't have to file, or
    • that you've already filed

You may want to

Answers to common questions

What should I do if I disagree with the notice, I didn't file my tax return, or it's been more than eight weeks since I filed it?

Call us at the toll-free number on the top right corner of your notice. Please have your paperwork ready when you call. If you prefer, you can write to us. If you choose to write, please enclose your response in the envelope we've provided.

What should I do if I've just filed my tax return?

You don't have to do anything if you filed your tax return(s) within the last eight weeks.

What happens if I can't pay the full amount I owe when I file my return?

You can make a payment plan with us when you can't pay the full amount you owe. If you owe tax on any return(s) you file, we will use your refund to help pay it.

When will my refund be released?

We can release your refund when we have received all past due returns, or explanations showing you did not have to file for those years.

Tips for next year

File your return on time, even if you will owe taxes. If necessary, you can make a payment plan to pay what you owe.

Filing on time saves you money because it costs the Internal Revenue Service less money to process your return when it's filed on time.

Consider filing your taxes electronically. Filing online can help you avoid mistakes and find credits and deductions that you may qualify for. In many cases you can file for free. Learn more about e-file.

If you have dependent children, you may be able to claim a tax credit for them. Publication 972, Child Tax Credit, has information about this credit.