This gives you until October 15 to file without penalties. You'll receive an electronic acknowledgment once you.Utah offers a 6-month extension, which moves the individual filing deadline from April 15 to October 15 (for calendar year filers). The state of Utah will automatically grant an extension for up to 6 months for individuals to file an income tax return with the state. The Extension Deadline is October 16, 2023 to file your Utah income tax return. Extensions Utah provides an automatic sixmonth extension to file income tax returns, but this is not an extension of time to pay taxes. 2024 Utah Extension. An extension extends the time you have to file your return. There is no extension of time to pay your Utah taxes. The state of Utah doesn't require any extension Form as it automatically grants extensions up to 6 months.