Self-Employed and Filed a Tax Extension? Don’t Miss the October 15 Deadline Self-Employed and Filed a Tax Extension? Don’t Miss the October 15 Deadline If you are self-employed and requested an extension for your 2025 individual income tax return, October 15, 2026 is generally the extended filing deadline . Self-employed taxpayers often have more information to report than someone who receives only a W-2, so waiting until the last minute can make filing more difficult. Your return may include business income, expenses, vehicle or mileage deductions, equipment purchases, insurance, advertising, supplies, professional fees, and other costs associated with operating your business. One important thing to remember is that an extension gives you additional time to file , not additional time to pay the tax that was originally due. Self-employed individuals may owe both income tax and self-employment tax , so the final balance can sometimes be larger than expected. If you haven't filed...