Entity Filing Deadlines
Entity TypeIRS FormOriginal Due DateExtended Due Date
Individuals1040April 15October 15
Partnerships1065March 15September 15
S Corporations1120-SMarch 15September 15
C Corporations1120April 15 (calendar-year) or 15th day of 4th month after fiscal year-endOctober 15 (6 months later)
LLCs / LLPs—Based on tax classification (see below)Based on tax classification
Trusts & Estates1041April 15October 15
Non-Profits990 / 990-EZ / 990-NMay 15 (15th day of 5th month after year-end)November 15
Gift Tax Returns709April 15October 15
LLC / LLP Filing Guidance
Type of LLCTaxed AsFormDue Date
Single-Member LLCDisregarded Entity / Individual1040 (Sch C)April 15
Multi-Member LLCPartnership1065March 15
LLC Electing S CorpS Corporation1120-SMarch 15