17 CFR § 249.310 - Form 10-K, for annual and transition reports pursuant to sections 13 or 15(d) of the Securities Exchange Act of 1934.

---
identifier: "/us/cfr/t17/s249.310"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "17 CFR § 249.310 - Form 10-K, for annual and transition reports pursuant to sections 13 or 15(d) of the Securities Exchange Act of 1934."
title_number: 17
title_name: "Commodity and Securities Exchanges"
section_number: "249.310"
section_name: "Form 10-K, for annual and transition reports pursuant to sections 13 or 15(d) of the Securities Exchange Act of 1934."
chapter_name: "SECURITIES AND EXCHANGE COMMISSION"
part_number: "249"
part_name: "FORMS, SECURITIES EXCHANGE ACT OF 1934"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "15 U.S.C. 78a  and 7201  12 U.S.C. 5461  18 U.S.C. 1350; Sec. 953(b) Pub. L. 111-203, 124 Stat. 1904; Sec. 102(a)(3) Pub. L. 112-106, 126 Stat. 309 (2012), Sec. 107 Pub. L. 112-106, 126 Stat. 313 (2012), Sec. 72001 Pub. L. 114-94, 129 Stat. 1312 (2015), and secs. 2 and 3 Pub. L. 116-222, 134 Stat. 1063 (2020), unless otherwise noted."
cfr_part: "249"
---


# 249.310 Form 10-K, for annual and transition reports pursuant to sections 13 or 15(d) of the Securities Exchange Act of 1934.

(a) This form shall be used for annual reports pursuant to sections 13 or 15(d) of the Securities Exchange Act of 1934 (15 U.S.C. 78m or 78o(d)) for which no other form is prescribed. This form also shall be used for transition reports filed pursuant to section 13 or 15(d) of the Securities Exchange Act of 1934.

(b) Annual reports on this form shall be filed within the following period:

(1) 60 days after the end of the fiscal year covered by the report (75 days for fiscal years ending before December 15, 2006) for large accelerated filers (as defined in § 240.12b-2 of this chapter);

(2) 75 days after the end of the fiscal year covered by the report for accelerated filers (as defined in § 240.12b-2 of this chapter); and

(3) 90 days after the end of the fiscal year covered by the report for all other registrants.

(c) Transition reports on this form shall be filed in accordance with the requirements set forth in § 240.13a-10 or § 240.15d-10 of this chapter applicable when the registrant changes its fiscal year end.

(d) Notwithstanding paragraphs (b) and (c) of this section, all schedules required by Article 12 of Regulation S-X (§§ 210.12-01-210.12-29 of this chapter) may, at the option of the registrant, be filed as an amendment to the report not later than 30 days after the applicable due date of the report.

[70 FR 76642, Dec. 27, 2005]

For  citations affecting Form 10-K, see the List of CFR Sections Affected, which appears in the Finding Aids section of the printed volume and at