The Tax Extension Deadline for FY 2025-26 is a critical date every individual and business taxpayer should mark on their calendar. Filing an extension can give you extra time to submit your return, but it does not extend the deadline to pay any taxes owed. Understanding the official deadlines, required forms, and estimated payment rules can help you avoid penalties and interest. Whether you’re self-employed, running a business, or filing a personal return, proper planning ensures compliance and peace of mind. For accurate filing assistance and deadline support, call 866-513-4656 and get professional help tailored to your needs.