What are CP2000 and CP2100 IRS Notifications? If you receive a CP2000 or CP2100, you most likely have missing or incorrect information. In the case of the CP2100, either your name or taxpayer identification number (TIN) is missing or does not match the IRS records. A payer has made at least one payment to an inaccurate TIN. For missing or obviously incorrect TINs, the taxpayer should begin backup withholding immediately and make up to three requests for the TIN to avoid penalties for not including the correct information. 
For CP2000s, the income or payment information reviewed from third parties does not match what you reported. For instance, an employer or financial institution has reported income or payments that you have not included in your tax return. The notice will explain how the reported information that you missed affects your return. If you do not respond by the due date, you will receive a Statutory Notice of Deficiency for a new amount which may include penalties and interest.
If you receive a CP2000, you should act swiftly to address the issue. The underlying discrepancy might also affect other years. Accelerated Tax Solutions can address this concern for you in a very quick and comprehensive manner, ensuring that our recommendation for future action–which you might choose to do on your own or enlist us to resolve–addresses not only the notice you received but also all years of your required compliance.
For CP2000s, the income or payment information reviewed from third parties does not match what you reported. For instance, an employer or financial institution has reported income or payments that you have not included in your tax return. The notice will explain how the reported information that you missed affects your return. If you do not respond by the due date, you will receive a Statutory Notice of Deficiency for a new amount which may include penalties and interest.
If you receive a CP2000, you should act swiftly to address the issue. The underlying discrepancy might also affect other years. Accelerated Tax Solutions can address this concern for you in a very quick and comprehensive manner, ensuring that our recommendation for future action–which you might choose to do on your own or enlist us to resolve–addresses not only the notice you received but also all years of your required compliance.