What is the due date for filing 2017 Form 1040?
Typically, the deadline for filing your federal income taxes is April 15. However, April 15, 2018, falls on a Sunday, and some areas recognize Monday as a holiday. So the tax deadline for filing federal income taxes is Tuesday, April 17, 2018.
If your six-month IRS extension is approved, you will have until October 15, 2018, to file your required forms.