Get Answers Support Tax Filings & Payments Other Forms Form 8809 & 15397 (Extension) How can I find the extended due date when filing for an extension? While filing for an extension, once you select the form type, the original deadline and extended due date will be displayed. Was this helpful? Yes No Related Questions Is it possible to request an extension of time to file form 1099/W-2? How much time do I have to mail recipient copies once I file an extension? How do I file Form 15397 in TaxBandits? Can I extend the deadline for furnishing recipient copies of 1099 forms using Form 15397? Go to Home Page Need more help? Get in touch with our dedicated support team Contact Us (704) 684-4751 support@taxbandits.com Sign Up for a FREE TaxBandits Account! The Smart CPA Choice Register Now Already have an account? Sign in