What Business Owners Need to Know About the Sept 15 Extension Deadline

Alarm clock next to a stack of tax documents, highlighting the urgency of the September 15 filing deadline

Mark your calendar for September 15, 2025, because if you filed an extension for your business tax return back in March 2025, your grace period is about to expire. No more extensions. No more “I’ll get to it next week.” This is it. TL;DR: September 15th is the absolute final deadline for extended tax returns […]