What this notice is about We sent you this notice because you filed your information returns late. What you need to do You must get an extension of time to file so we can finish processing your returns. To request an extension, send us a letter with the information described in the notice along with a copy of the late return and the notice. You must respond within 30 days from the date of the notice. Frequently asked questions Where should I mail my response? Mail your statement to the address at the top of the notice. Can I fax the information? Yes. You can fax your response using either a fax machine or an online fax service to the fax number on your notice. Several online fax services use the internet to send files form your computer or smart device to a fax number. Follow the instructions for the cover sheet as explained on your notice. Please don’t fax and mail your response. 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.