Tax Due Dates

2018 Tax Return Deadlines

Entity Type Tax Deadline
Due Date
Original deadline for partnerships (Form 1065) and S Corporations (Form 1120S March 15, 2018
Original deadline for C Corporations (Form 1120) and individuals (Form 1040) April 17, 2018
Original deadline for exempt organizations (Form 990) May 15, 2018
Final deadline for partnerships and S Corporations (with extension) September 17, 2018
Final deadline for C Corporations and individuals (with extension) October 15, 2018
Final deadline for exempt organizations (with extension) August 15, 2018

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