Taxpayers filing a CBT-100, BFC-1, or CBT-100S, with an original due date of November 15, 2018, December 15, 2018, or January 2019, (i.e., fiscal tax year filers which had a tax year ending July 31, 2018, August 31, 2018, September 30, 2018, respectively) were granted an automatic extension to file their tax returns by February 15, 2019. We will not charge late filing penalties or interest if the returns were filed by the extended due date. The extension applies only to the filing of the return. It did not extend the time to make all required payments. Affected taxpayers that applied for an extension of time to file have 6 months from the original due date to file their tax returns. For example, if your year ended on July 31, 2018, you must file your tax return on or before May 15, 2019, which is 6 months after the original due date of November 15, 2018.