The IRS expects to open the 2022 filing season on approx. January 24, 2022.
Regular filing deadlines are (generally):
Form 1099 and W-2's - January 31
For December year end Partnerships and S Corporations - March 15
For December year end Corporations - April 15
For Individuals - April 15
For December year end Not for Profits - May 15
Extension deadlines are:
For December year end businesses - generally September 15
For Individuals - October 15
For December year end Not for Profits - November 15
Estimated tax payments are due quarterly on:
April 15, June 15, September 15 and January 15