What this notice is about CP 209 generates when two employer identification numbers (EINs) are consolidated in our records. What you need to do Continue using the EIN designated as your valid EIN. Include a copy of your CP209 when you respond to any IRS notices/letters. Enter your name exactly as shown above on all filings. You may want to Ensure the valid EIN is entered correctly on all filings with the IRS See additional information on Employer ID Numbers. Frequently asked questions Have the payments I made and returns I filed under the incorrect EIN been moved to the valid EIN? Yes, your valid EIN contains the history of the erroneously assigned EIN. Tips for next year Ensure your EIN is entered correctly on all filings with the IRS. Reference Tools Publication 1, Your Rights as a Taxpayer Publication 17, Your Federal Income Tax Full list of tax forms and instructions Need Help? You can authorize someone to contact the IRS on your behalf. See if you qualify for help from a Low Income Taxpayer Clinic. If you can’t find what you need online, call the IRS number at the top of your notice or letter.