The due date for filing individual tax returns depends on the type of filer and the tax year. For calendar year filers, which is the most common type of filer, the due date for filing federal individual income tax returns is generally April 15. However, if April 15 falls on a weekend or holiday, the due date is pushed back to the next business day. For example, in 2023, the due date for filing individual tax returns was April 18. If you need more time to file your tax return, you can request an automatic six-month extension by filing Form 4868. The extension gives you until October 15 to file your tax return, but you must still pay any taxes owed by the original due date to avoid interest and penalties. If you are a fiscal year filer, the due date for filing your tax return is the fourth month after your fiscal year ends, day 15.