What types of IRS notices can I upload?

 You can upload a wide range of IRS notices—more than 50 types are supported. Whether it's related to a filing error, backup withholding, deposit reminders, or general IRS communication, you can upload and keep a record of it easily.

Notice Description Action Steps
CP2100/CP2100A This notice is sent when the IRS finds incorrect or missing Taxpayer Identification Numbers (TINs) in your 1099 filings. If not resolved, it can result in a 24% backup withholding requirement. You must review the list of affected vendors in the notice. Send the First B Notice with a Form W-9 to each vendor within 15 business days. If there's no response within 30 days, send the Second B Notice and begin backup withholding. File corrected 1099s if updated TINs are received.
CP259 This notice is issued when the IRS has no record of your required employment tax return (Form 941 or 940). It may be due to a missed or failed submission. Check if the return was filed properly using your e-file confirmation or mail receipt. If not filed, submit it right away and include a penalty waiver request if needed. If filed incorrectly, correct it using Form 941-X.
Letter 2030 This notice is sent when the IRS finds mismatches between your business tax return and third-party data like W-2s or 1099s. It often involves underreported income or incorrect EIN/SSN details. Review the proposed changes and compare them with your records. Gather supporting documents. If you disagree, respond with Form 941-X and proof. If you agree, pay the amount due through EFTPS.
CP136B This notice informs you that the IRS has changed your Form 941 deposit schedule from monthly to semiweekly, based on your past tax liability and payment history. Review your deposit liability using Form 941, Line 12. If the change is incorrect, call the IRS and provide proof of timely deposits. If correct but difficult to manage, you can request a payment variance using Form 941-V.
Letter 1462 This notice is sent when the IRS needs clarification on your backup withholding compliance for vendors with missing or incorrect TINs or past non-compliance. Review the list of affected vendors. Collect valid W-9s and begin 24% backup withholding using Form 945 where needed. Keep records to support any penalty relief requests.
Letter 484C This notice is issued when the IRS cannot verify the TINs reported for certain vendors on your 1099 forms. This may lead to B Notice escalation and potential penalties. Review the original W-9s from affected vendors. Request updated W-9s and validate them using the IRS TIN Matching program. File corrected 1099s with Form 1096.
972CG This notice informs you that the IRS has assessed a penalty for late or incorrect information return filings, such as 1099s or W-2s, due to delays, TIN errors, or incomplete data. Review your filing history via the FIRE System. You can either pay the penalty or dispute it using Form 2848 if you're authorized. You may also request penalty abatement for first-time errors or reasonable cause.
CP15 This notice informs you that the IRS has assessed a Trust Fund Recovery Penalty (TFRP) for unpaid employee withholdings. It can apply personally to responsible individuals and may equal 100% of the unpaid taxes. Review your Form 941 filings and payment records. If you disagree, you can dispute it with supporting documents. If you agree, pay the amount or request penalty relief if eligible.
CP215 This notice is sent when W-2 forms were not filed with the SSA, even though Form 941 was submitted. It usually results from rejected W-2s, late submissions, or filing under the wrong EIN.

Check your W-2 filing status on the SSA portal. If missing, file them immediately. If already filed, submit proof of submission. You can also request penalty relief if eligible.
CP504/CP504B This is a final notice from the IRS warning that enforced collection actions—like levying your bank accounts or receivables—may begin if the balance remains unpaid. Pay the full amount immediately. If you can’t pay in full, contact the IRS to set up a payment plan. If already paid, you may need to request a levy release.
CP161 This notice is sent when the IRS identifies unpaid payroll tax deposits. It’s usually triggered by missed EFTPS payments, underreported amounts, or reconciliation issues in your payroll filings. Check your EFTPS payment history to confirm. If the notice is incorrect, respond with proof of payment. If the balance is due, pay in full or request a payment plan.
CP160 This is a reminder notice from the IRS about unpaid taxes or penalties. It includes the total amount due with interest and penalties, and may lead to enforced collection if not addressed. Review the balance and either pay in full or request a payment plan. If you believe there’s an error, review your account transcript and file corrections if needed.
CP501 This is the first reminder from the IRS that you have a balance due. It’s typically sent a few weeks after your return is processed and includes a payment voucher before additional penalties begin. Review the amount shown and confirm it with your records. If correct, make a payment. If you can’t pay right away, contact the IRS to request a short-term extension.
CP503

This is the second reminder about a balance due and serves as a warning before serious collection actions. It features a red “IMPORTANT” banner, allows less time to respond than CP501, and signals you’re closer to levy enforcement.


 		 Pay the full amount immediately or contact the IRS if you’re disputing it. You may still qualify for a short-term payment agreement or temporary delay.
CP90/CP297 This is a final notice from the IRS of their intent to levy. If unpaid, the IRS may seize assets such as bank accounts, wages, or other property. Request a Collection Due Process (CDP) hearing by filing Form 12153. You can also explore payment plans or resolution options like an Offer in Compromise.
Letter 1058 This is the final IRS notice of intent to levy and your official right to a hearing. It outlines which assets may be targeted and lists available appeal options. File Form 12153 within 30 days to protect your appeal rights and stop collection. You can also explore options like penalty abatement or Innocent Spouse Relief.
Letter 226J This notice proposes a penalty for not offering ACA-compliant health coverage. It applies only to Applicable Large Employers (ALEs) that didn’t meet coverage requirements. Review the assessment carefully. Use Form 14764 to agree and pay, or disagree and send supporting documents.
Letter 5005-A This notice proposes a Trust Fund Recovery Penalty (TFRP) against individuals the IRS deems responsible for unpaid payroll taxes. If assessed, the liability becomes personal.

Review the notice details. If you disagree, submit Form 2751 with supporting records. If you agree, pay the balance or request penalty relief if eligible.


 
CP210 The IRS has made changes to your business tax return, which now shows a balance due. Adjustments may be due to disallowed deductions, missing income, or filing errors. Compare the IRS changes with your records. If correct, pay the balance. If incorrect, contact the IRS and submit supporting documents.
CP2000 This notice proposes changes to your return due to mismatches between your reported income and third-party data like W-2s or 1099s. It may affect your refund or create a balance due. Review the proposed changes and either agree and pay, or disagree using Form 886-A with proof. File an amended return if needed.
CP11/CP12

The IRS corrected a math or clerical error on your return, which has changed your refund amount or created a balance due.

 Review the IRS changes. If incorrect, contact the IRS and provide supporting documents. If correct, no action is needed.
Letter 112C Your return was rejected because it’s missing required forms or schedules, like Schedule C for sole proprietors. The IRS cannot process it without the missing details. Review the notice, gather the missing forms, and submit them within 20 days. If required, resubmit the corrected return.
Letter 984C The IRS rejected your e-filed return due to a missing or invalid signature. This often occurs when the required signature form wasn’t attached or digital verification failed. Locate the original signed return or complete Form 8453. For business returns, include a corporate resolution and EIN proof. Resubmit the documents with proper verification.
CP22A/CP22E The IRS made changes to your return that resulted in a balance due. These adjustments may involve disallowed deductions, unreported income, or credit errors. Review the IRS changes. If correct, pay the balance or set up a payment plan. If incorrect, contact the IRS and submit supporting documents or request an Offer in Compromise.
CP23 This notice shows a mismatch between the estimated tax payments you reported and what the IRS received. It may be due to underpayment or misapplied funds. Review your estimated payments and compare them with your IRS records. If the IRS made an error, contact them with proof. If the mistake is on your end, file an amended return.
CP39 The IRS used your current year’s refund to pay off a tax debt from a previous year. This typically happens if you had unpaid taxes or a math error resulted in an incorrect overpayment.

Check your IRS Account Transcript to confirm how the overpayment was applied. If you’ve already paid the prior debt, file Form 843 with documentation to request a refund.
CP44 The IRS is holding your refund due to unresolved issues, such as missing returns, identity verification, or an active audit. Check the notice to understand why your refund is being delayed. Then, either file the required returns, complete the ID verification process, or respond to audit requests.
CP88 Your refund is being withheld because the IRS has not received one or more required tax returns. Ignoring this notice may result in liens or levies. File all missing returns immediately. If you owe taxes, request a payment plan using Form 9465. For help, call 866-681-4271.
Letter 3172

The IRS has filed a Federal Tax Lien against your property due to unpaid taxes. This lien is public and may impact your credit or result in asset seizures.

Explore payment options or request a lien withdrawal using Form 12277 after resolving your balance.
Letter 3523 This is the IRS’s response to your audit reconsideration request. It states whether adjustments, refunds, or additional taxes apply. If you agree, pay the balance due. If you disagree, file Form 12203 within 90 days to appeal.
Letter 3850 The IRS assessed a penalty for failing to file payroll or information returns such as Forms 941, W-2, or 1099.

File the missing returns and request penalty relief using Form 843 with supporting documentation.
CP3219N This is a formal Notice of Deficiency from the IRS. It proposes changes like increased tax, disallowed credits or deductions, and penalties. If you disagree, file a petition with the U.S. Tax Court within 90 days. If you agree, pay or request a payment plan.
CP05/CP05A The IRS is reviewing your tax return, which may delay your refund. This could be due to income, credit claims, identity verification, or audit selection. Monitor your refund status, respond to any identity verification requests, and call the IRS if no update is available after 60 days
CP240 The IRS found a mismatch between Form 941 wages and W-2 statements. This may involve incorrect wages, SSNs, or missing tip income. Compare IRS figures with payroll records. If errors exist, call the IRS and file corrected forms. If correct, pay and file Form 941-X.
CP102 The IRS did not receive your Form 940 (Federal Unemployment Tax Return). This may be due to non-filing, incomplete submission, or an EIN mismatch. File Form 940 immediately if not done. If already filed, provide proof such as certified mail receipt and contact the IRS for resolution.
CP107 The IRS adjusted your Form 1042, which may involve changes to withholding amounts, denied treaty benefits, or reporting errors. Review your records. If incorrect, file Form 1042-X with required documentation. If balance is due, pay or request a payment plan.
CP128 Your overpayment or refund has been applied to other tax debts or obligations. This could also result from errors or misapplied payments. Review your IRS Account Transcript. If incorrect, file Form 843 for correction. No action is needed if everything is accurate.
CP520 Final IRS notice before revoking your EIN due to unfiled returns or business inactivity. File all missing returns. If active, call the IRS and update your business address if needed. Follow reactivation steps if EIN is revoked.
CP575A This notice confirms the IRS has assigned your new Employer Identification Number (EIN). It includes official registration details. Verify the information. Store the notice securely and share it with your bank, payroll provider, and tax preparer.
CP575C This notice confirms updates to your Employer Identification Number (EIN) record, such as changes to your business structure, ownership, or mailing address. Review the updated details for accuracy. If anything is incorrect, respond within 60 days by calling the IRS or submitting Form 8822-B.
CP575D This is a duplicate confirmation of your EIN, issued when the original CP575 was lost or misplaced. Compare with your original copy. If this is accurate, store it securely and discard outdated versions.
letter 5043 This ACA Employer Mandate notice highlights issues in your 1095-C filings and proposes penalties for non-compliance.

File corrected 1095-C forms and respond to the penalty proposal using Form 14764 if disputing.
letter 1363 This notice addresses international tax non-compliance related to foreign accounts or assets, like missing FBAR or FATCA filings. File any missing reports, and consider streamlined or voluntary disclosure programs if eligible.
CP01B This is an IRS identity theft alert triggered by suspicious activity, like multiple filings or inconsistent personal data. Verify your identity using ID.me, submit Form 14039 with supporting documents, and request an IP PIN.
CP167 This notice informs you that the IRS filed a Substitute for Return (SFR) on your behalf because you failed to file a required tax return. The SFR is based only on income reported to the IRS and excludes most credits and deductions. File your original return with complete schedules to replace the SFR. If you disagree with the IRS’s version, submit Form 1040-X with supporting documents.
Letter 5043 This ACA penalty notice is sent to Applicable Large Employers (ALEs) for incorrect or late filings of Form 1095-C, which could result in potential penalties. File corrected Form 1095-Cs via the IRS AIR System. Respond using Form 14764 and include a penalty relief request with supporting documents.
letter 99c The IRS sends this letter when Form 8962 (used to reconcile the Premium Tax Credit) was not received with your return. Retrieve Form 1095-A from your Health Insurance Marketplace, complete Form 8962, and submit it with the necessary supporting documents.
CP2005

This notice informs you that your tax return is under review. The IRS needs more time due to incomplete information, possible errors, or for identity verification.

 Review your return for issues, wait up to 60 days, and respond if the IRS contacts you for documents. Complete identity verification if requested.
CP080 This notice informs you that your refund was reduced or fully used to pay off existing debts such as federal tax, child support, or student loans. Check the Treasury Offset Program records and request a transcript if needed. Contact the agency responsible for the debt to resolve or dispute it.
CP162

This IRS notice proposes changes to your tax return due to issues such as unreported income, math errors, or disallowed credits and deductions

 Review the IRS’s proposed changes and compare them with your filed return. Retrieve your IRS Wage & Income Transcript if income discrepancies are involved. If you agree, pay the revised amount. If you disagree, file Form 1040-X with proof such as corrected 1099s or receipts.



   

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