In an effort to battle the problem of identity theft, the IRS is sending letters to taxpayers, who may be possible identity theft victims, asking them to verify their identity in order to complete the processing of their return. The letter is known as “Letter 5071C” and gives taxpayers two options to contact the IRS and confirm whether or not they filed the return that has been submitted. Taxpayers can use the IRS-sponsored website or a toll-free number on the letter.
The website will ask a series of questions that only the taxpayer can answer. Taxpayers should have their prior year tax return, their current year tax return and any supporting documents available (Forms W-2, 1099 and Schedules A and C).
The IRS wants taxpayers to remember that they will never request information by email and the IRS will not call a taxpayer directly to ask for information without sending a letter first.
More information on receiving the letter and how this process works can be found here.