We automatically grant you a six-month extension of time to file your tax return. We grant an automatic six-month extension of time to file your return.An Illinois extension request should be filed within 9 months of the date of death. IRS e-file is the IRS's electronic filing program. The extension period is six months from the original deadline. To make an extension payment, use Form IL505I, Automatic Extension Payment for Individuals. You should still pay your taxes on time to avoid any penalties or interest, experts say. Yes. Both state Form IT-9 and federal Form 4868 extend your state filing time to Nov. 14. Can I file the state extension electronically? This includes individuals who had a valid extension to file their 2023 income tax return due to run out on Oct.