What this notice is about We denied your Form 8716, Election To Have a Tax Year Other Than a Required Tax Year, because your deferral period is more than 3 months. We'll mail your denied Form 8716 separately. What you need to do File your annual return at the end of your required tax year, usually December 31. You may want to Keep this notice for your permanent records. Frequently asked questions What is a “deferral period”? The number of months between the last day of the elected tax year and the last day of the required tax year. Reference Tools Publication 1, Your Rights as a Taxpayer 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.