These changes are generally effective for taxable years starting after Dec. 31, 2015 (2016 tax returns prepared during the 2017 tax filing season).
Return Type | Due Dates Under Prior Law | New Law: Original and Extended Due Dates (Dates changed by law in bold) | Comments | |
Partnership (calendar year) Form 1065 | April 15 Sept. 15 | March 15 Sept. 15 | Under the new law, for fiscal year partnerships, returns will be due on the 15th day of the 3rd month after the year-end. A six-month extension is allowed from that date. | |
S Corporation (calendar year) Form 1120S | March 15 Sept. 15 | March 15 Sept. 15 | No change | |
Trust and Estate Form 1041 | April 15 Sept. 15 | April 15 Sept. 30 | ||
C Corporation (calendar year) Form 1120 | March 15 Sept.15 | Before Jan. 1, 2026 | After Dec. 31, 2025 | Starting with 2016 tax returns, all other C corps besides Dec. 31 and June 30 year-ends (including those with other fiscal year-ends) will be due on the 15th of the 4th month after the year-end. A six-month extension is allowed from that date. |
April 15 Sept. 15 | April 15 Oct. 15 | |||
C Corporation Fiscal Year End (other than Dec. 31 or June 30) | 15th day of 3rd month after year-end 15th day of 9th month after year-end | 15th day of 4th month after year-end 15th day of 10th month after year-end | ||
C Corporation June 30 Fiscal Year Form 1120 | Sept. 15 March 15 | Before Jan. 1, 2026 | After Dec. 31, 2025 | Special rule for C Corporations with fiscal years ending on June 30 — the new due date rules will go into effect for returns with taxable years beginning after Dec. 31, 2025 (2027 filing season). |
Sept. 15 April 15 | Oct. 15 April 15 | |||
Individual Form 1040 | April 15 Oct. 15 | April 15 Oct. 15 | No change | |
Exempt Organizations Forms 990 | May 15 Aug. 15 Nov. 15 | May 15 Nov. 15 | New extension will be a single, automatic 6-month extension, eliminating the need to process the current first 90-day extension. | |
Employee Benefit Plans Form 5500 | July 31 Oct.15 | July 31 Oct. 15 | No change. (Federal law enacted in December 2015 repealed a previously enacted extension.) | |
Foreign Trusts with a U.S. Owner Form 3520-A | March 15 Sept. 15 | March 15 Sept. 15 | No change | |
FinCEN Report 114 | June 30 | April 15 Oct. 15 | Foreign Bank and Financial Accounts Report (FBAR) | |
Information Returns (i.e., W-2 and 1099s) | To IRS/SSA — Feb. 28 and March 31 if filed electronically | Forms W-2 and certain 1099-MISC due to IRS/SSA Jan. 31. All other Forms 1099 due Feb. 28; March 31 if filed electronically. | Form W-2 and most Forms 1099-MISC due to IRS/SSA Jan. 31 (same date they are due to the taxpayer). | |
Revised Jan. 22, 2016.
Extended Due Dates:
(These dates apply for taxable years beginning after Dec. 31, 2015 [2017 filing season — for 2016 tax returns]).
Forms 1040, 1065 and 1120S shall be a six-month period beginning on the due date for filing the return (without regard to any extensions).
Form 1041 shall be a 5½-month period beginning on the due date for filing the return (without regard to any extensions).
Form 1120 generally shall be a six-month period beginning on the due date for filing the return (without regard to any extensions). Note that Dec. 31 year-end C corporations before Jan. 1, 2026, shall have a five-month extension, and June 30 year-end C corporations before Jan 1, 2026, shall have a seven-month extension.
Form 3520, Annual Return to Report Transactions with Foreign Trusts and Receipt of Certain Foreign Gifts, for calendar year filers shall have due date of April 15, with maximum extension for a six-month period ending Oct. 15.
Form 3520–A, Annual Information Return of a Foreign Trust with a United States Owner, shall be the 15th day of the 3rd month after the close of the trust’s taxable year, and the maximum extension shall be a six-month period beginning on such day.
Forms 990 (series) returns of organizations exempt from income tax shall be an automatic six-month period beginning on the due date for filing the return (without regard to any extensions).
Form 4720 returns of excise taxes shall be an automatic six-month period beginning on the due date for filing the return (without regard to any extensions).
Form 5227 shall be an automatic six-month period beginning on the due date for filing the return (without regard to any extensions).
Form 6069 returns of excise taxes shall be an automatic six-month period beginning on the due date for filing the return (without regard to any extensions).
Form 8870 shall be an automatic six-month period beginning on the due date for filing the return (without regard to any extensions).
FinCEN Form 114, relating to Report of Foreign Bank and Financial Accounts, shall be April 15 with a maximum extension for a six-month period ending Oct. 15, and with provision for an extension under rules similar to the rules of 26 C.F.R. 1.6081–5. For any taxpayer required to file such form for the first time,
the Secretary of the Treasury may waive any penalty for failure to timely request or file an extension.
© 2016 American Institute of CPAs. All rights reserved. 19262-312