For individuals, the last day to file your 2022 taxes without an extension is April 18, 2023, unless extended because of a state holiday. This is the due date for filing your tax return if you’re a calendar year filer. If you requested a six-month tax extension using Form 4868, the deadline was October 16, 2023. However, if you owe money, you must make income tax payments by April 18, 2023, to avoid interest and penalties. The due date for estimated tax payments for the first quarter of 2023 is April 18, 2023.