Jan 17 – Fourth Quarter Estimates Due
Jan 31 – Deadline for employers to mail out Form W-2 to employees
Deadline for businesses to furnish Form 1099 statements
Mar 15 – Filing deadline for extensions or income tax returns of S-Corporations and Partnerships
Apr 15 — Foreign Bank Account Information Reporting Due

May 15 – Filing deadline for extensions or income tax returns of Tax-Exempt Organizations
Jun 15 — Second Quarter Estimates Due

July 17 – Filing deadline for extensions or income tax returns of Individuals, Trusts and Corporations
First Quarter Estimates Due
Sep 15 — Last day for income tax filing of calendar year Corporations, S-Corporations and Partnerships that obtained an extension
Sep 30 — Last day for income tax filing of trusts that obtained an extension
Oct 16 — Last day for filing income tax return by calendar-year individuals who obtained automatic six-month filing extension
Nov 15 — Last day for income tax filing of not-for-profit organizations that obtained an extension