The IRS is confirming your identity and that you filed the tax return. Be prepared with your tax return information and contact your employers to get copies if necessary. Call the IRS first, then you will know if you need to do anything further.
Please review this link for more information about your letter. https://www.irs.gov/individuals/employees/understanding-your-4883c-letter
What happens after I call?
We’ll continue processing your tax return once we verify your identity and confirm that you submitted the return. If you did file the return, please know it will take approximately nine weeks to process it once you verify your identity.
