IRS Notice Library
Understanding your IRS notice is the first step to resolution. Here are the most common notices we see and how we handle them.
Notice CP2000 - Unreported Income
Income Discrepancy
critical
This notice informs taxpayers that the IRS has identified unreported income on their tax return. It provides details on ...
Response deadline: 30 days
Learn More →Notice CP1403 - Requested Information
Document Request
info
This notice requests specific documents or information to verify credits claimed on your tax return. It helps the IRS co...
Response deadline: 30 days
Learn More →Notice LT11 - Final Notice Before Levy
Final Notice
critical
This notice is the IRS's final warning before they levy your assets. It extends the deadline to respond and explains you...
Response deadline: 30 days
Learn More →Notice CP504 - Intent to Levy
Collection Process
critical
This notice indicates that your account has been referred for collection and that the IRS intends to levy your state tax...
Response deadline: 30 days
Learn More →Notice CP14 - Tax Bill
Tax Bill
medium
This notice is your tax bill showing the amount you owe, including taxes, penalties, and interest. It's the first formal...
Response deadline: 21 days
Learn More →Notice CP501 - Balance Due
Balance Due
medium
This notice reminds you of a balance due on your tax account. It's a follow-up to the CP14 and warns of potential collec...
Response deadline: 10 days
Learn More →Notice CP502 - Reminder of Balance Due
Balance Due Reminder
medium
This notice is another reminder of your unpaid tax balance. The IRS is indicating they may take collection actions if pa...
Response deadline: 10 days
Learn More →Notice CP503 - Second Reminder
Lien Warning
critical
This notice is the IRS's second reminder about your unpaid taxes. It warns that they may file a Notice of Federal Tax Li...
Response deadline: 10 days
Learn More →Notice CP523 - Installment Agreement Default
Agreement Default
critical
This notice informs you that you've defaulted on your installment agreement. The IRS may cancel the agreement and pursue...
Response deadline: 30 days
Learn More →Notice CP259 - Estimated Tax Penalty
Penalty Notice
medium
This notice informs you that you owe an estimated tax penalty because you didn't make enough estimated tax payments duri...
Response deadline: 60 days
Learn More →Notice CP22E - Examined Return
Examination Results
critical
This notice shows the results of an examination of your tax return. It explains any changes to your tax, penalties, and ...
Response deadline: 30 days
Learn More →Notice CP2000A - Underreported Income
Income Matching
critical
This notice is similar to CP2000 but specifically for matching information returns. It shows income the IRS thinks you d...
Response deadline: 30 days
Learn More →Notice LT39 - Payment Plan Request
Plan Acknowledgment
info
This notice acknowledges receipt of your payment plan request and provides temporary relief while the IRS reviews your a...
Response deadline: N/A
Learn More →Notice CP49 - Overpayment Applied
Overpayment Applied
info
This notice informs you that your overpayment was applied to a past-due tax liability. It explains how the amount was us...
Response deadline: N/A
Learn More →Notice CP91 - Levy on Social Security
Social Security Levy
critical
This notice informs you that the IRS has levied your Social Security benefits to satisfy a tax debt....
Response deadline: 30 days
Learn More →Notice CP90 - Final Notice of Levy
Final Levy Warning
critical
This notice is the IRS's final warning before they levy your bank accounts, wages, or other assets....
Response deadline: 30 days
Learn More →Notice CP161 - Notice of Federal Tax Lien
Tax Lien Filed
critical
This notice informs you that a Notice of Federal Tax Lien has been filed against your property. This can affect your cre...
Response deadline: N/A
Learn More →Notice CP297 - Notice of Levy Right
Hearing Rights
medium
This notice informs you of your right to a hearing before the IRS levies your assets. It explains the Collection Due Pro...
Response deadline: 30 days
Learn More →Notice CP71C - Estimated Tax Penalty
Estimated Tax Penalty
medium
This notice calculates an estimated tax penalty for the tax year. It shows how the penalty was computed and how to avoid...
Response deadline: 60 days
Learn More →Notice CP2100 - Backup Withholding
Backup Withholding
medium
This notice informs you that backup withholding was applied to your income because you didn't provide a correct TIN....
Response deadline: N/A
Learn More →Notice CP01 - Identity Verification
Identity Verification
critical
This notice asks you to verify your identity because the IRS suspects identity theft on your tax account....
Response deadline: 30 days
Learn More →Notice CP01A - IP PIN
IP PIN
info
This notice provides your new Identity Protection PIN (IP PIN) for the tax year. You'll need this to file your return el...
Response deadline: N/A
Learn More →Notice CP80 - Unallocated Payment
Payment Issue
medium
This notice informs you that the IRS received a payment but couldn't apply it to a specific tax year or account....
Response deadline: 60 days
Learn More →Notice CP24 - Estimated Tax Overpayment
Estimated Tax Credit
info
This notice shows an overpayment of estimated taxes that was applied to the next tax year's estimated payments....
Response deadline: N/A
Learn More →Notice CP40 - Refund Applied to Debt
Refund Offset
medium
This notice informs you that your tax refund was offset to pay a past-due federal or state debt....
Response deadline: N/A
Learn More →Notice CP53 - Direct Deposit Issue
Direct Deposit Issue
info
This notice informs you that your direct deposit refund couldn't be processed and a paper check will be mailed instead....
Response deadline: N/A
Learn More →Notice CP59 - No Return Filed
Unfiled Return
critical
This notice informs you that the IRS has no record of a tax return being filed for a specific tax year....
Response deadline: 30 days
Learn More →Notice CP166 - Health Coverage Requirement
Health Coverage
medium
This notice informs you about the health coverage reporting requirement and may assess a penalty for not having qualifyi...
Response deadline: 30 days
Learn More →Notice CP182 - Innocent Spouse Relief
Innocent Spouse
medium
This notice informs you of the IRS's decision regarding your request for Innocent Spouse Relief under IRC § 6015....
Response deadline: 30 days
Learn More →Notice CP298 - Tax Lien Release
Lien Release
info
This notice confirms that the Notice of Federal Tax Lien has been released after your tax debt was satisfied....
Response deadline: N/A
Learn More →Notice CP299 - Tax Lien Subordination
Lien Subordination
info
This notice informs you that the IRS has subordinated the tax lien to another creditor, which can help with refinancing ...
Response deadline: N/A
Learn More →Notice CP508 - Passport Certification
Passport Denial
critical
This notice informs you that the IRS has certified your debt to the State Department, which may deny your passport appli...
Response deadline: 30 days
Learn More →Notice CP11 - Return Changed
Return Adjustment
medium
This notice shows changes the IRS made to your tax return, resulting in a different tax amount. It explains the reasons ...
Response deadline: 60 days
Learn More →Notice CP12 - Overpayment Refund
Refund Due
info
This notice shows that the IRS calculated an overpayment on your return and a refund will be issued....
Response deadline: N/A
Learn More →Notice CP13 - No Change
No Change
info
This notice confirms that the IRS reviewed your return and made no changes. Your tax liability remains as originally fil...
Response deadline: N/A
Learn More →Notice CP23 - Estimated Tax Mismatch
Estimated Tax Mismatch
medium
This notice informs you that your estimated tax payments don't match IRS records, resulting in a different refund or bal...
Response deadline: 30 days
Learn More →Notice CP256V - Estimated Tax Payment
Payment Received
info
This notice confirms receipt of your estimated tax payment and shows the amount credited to your account....
Response deadline: N/A
Learn More →Notice CP321 - Refund Check
Refund Check
info
This notice accompanies your tax refund check and explains how the refund was calculated....
Response deadline: N/A
Learn More →Notice CP322 - Refund Direct Deposit
Direct Deposit
info
This notice confirms that your refund was direct deposited into your bank account and shows the amount....
Response deadline: N/A
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