The First-Year SEC Reporting Manager's Playbook
Deadlines, controls, auditors, comment letters and the close-to-file timeline – in plain English. Written from public rules and everyday practice, with links to the primary sources. Each chapter ends with a one-page checklist and a Sources box.
Chapters
| 1 | Your First 90 Days Learn the filing machine before you try to change it. |
| 2 | Your Reporting Calendar: 10-K, 10-Q and 8-K Deadlines The one chapter you will reopen every quarter. |
| 3 | Form 8-K Triggers and the Four-Business-Day Rule Building a trigger-spotting habit across the company. |
| 4 | Disclosure Committee and Controls How certifications, disclosure controls and ICFR fit together. |
| 5 | Working with Your Auditors Running the audit and interim reviews like a project, not a negotiation. |
| 6 | SEC Comment Letters From the envelope to EDGAR release. |
| 7 | XBRL and Inline XBRL Basics What the reporting manager must own even when a vendor does the tagging. |
| 8 | Managing the Close-to-File Timeline and Review Process Turning 75 days into a plan. |
| 9 | Staying Current A 30-minute monthly habit that keeps the disclosure checklist honest. |
| 10 | Career and Stakeholder Management Being the person everyone trusts with the deadline. |
Plus a Start Here section and three appendices: a template quick reference, checklists and tools, and a glossary.
Who it's for
First-time SEC reporting managers and senior accountants moving into SEC reporting at U.S. domestic registrants filing Forms 10-K, 10-Q and 8-K.
What it isn't
A substitute for securities counsel, your auditors or the rules themselves.
Sample: Chapter 2 · Your Reporting Calendar
The short version. Deadlines turn on your filer status, which you set once a year. Forms 10-K and 10-Q count calendar days after period end; Form 8-K counts business days after the event. A due date that falls on a weekend or federal holiday moves to the next business day. And on EDGAR, a filing that starts transmitting after 5:30 p.m. ET generally gets the next business day's filing date.
Step 1 · Know your filer status
Periodic-report deadlines depend on whether you are a large accelerated filer, an accelerated filer or neither. The definitions are in Exchange Act Rule 12b-2. An accelerated filer has public float of $75 million or more but less than $700 million, measured as of the last business day of its most recently completed second fiscal quarter; has been reporting for at least twelve months; has filed at least one annual report; and is not eligible to use the SRC requirements under the SRC revenue test. A large accelerated filer meets the same conditions with float of $700 million or more.
You measure in Q2, but decide at year-end. The status determination is made as of fiscal year-end and governs the 10-K for that year and the 10-Qs of the following year.
Worked example (calendar-year company)
Fiscal year ending Thursday, December 31, 2026; first quarter ending Wednesday, March 31, 2027:
| Filer status | 10-K due | 10-Q (Q1 2027) due |
|---|---|---|
| Large accelerated | Mon, Mar 1, 2027 (day 60) | Mon, May 10, 2027 (day 40) |
| Accelerated | Tue, Mar 16, 2027 (day 75) | Mon, May 10, 2027 (day 40) |
| Non-accelerated | Wed, Mar 31, 2027 (day 90) | Day 45 is Sat, May 15 → Mon, May 17, 2027 |
Form 8-K: four business days
A material definitive agreement is signed on Wednesday, November 25, 2026. Thursday, November 26 is Thanksgiving. The four business days are Friday, November 27; Monday, November 30; Tuesday, December 1; and Wednesday, December 2 – so the Item 1.01 report is due Wednesday, December 2, 2026 (Form 8-K General Instruction B.1).
Practice tip. Set your internal "file by" time at noon ET on a day before the statutory deadline. A rejected submission at 5:15 p.m. leaves no room to fix it (Regulation S-T Rule 13).
Sources: Form 10-K General Instructions, Form 10-Q General Instructions, Form 8-K and General Instructions, Exchange Act Rule 12b-2 (17 CFR 240.12b-2), Exchange Act Rule 0-3 (17 CFR 240.0-3), Regulation S-T Rule 13 (17 CFR 232.13). Pending 2026 SEC proposals (semiannual reporting; filer-status changes) are flagged in the chapter as proposed only – see SEC rulemaking activity.