Vol. IIIIssue 41Tuesday
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Form D Filing for Regulation D Exemptions: Deadlines and Disclosure Rules

Learn how Form D works for exempt securities offerings under Regulation D. This guide walks through SEC filing rules, Rule 506(b) requirements, and a worked example of a startup raising $2 million from accredited investors, including the 15-day deadline and investor-count reporting.

Sep 12, 2026

In this review

  1. What Form D is and who has to file it
  2. The Rule 506(b) rules that shape the disclosure
  3. Worked example
  4. What's inside a Form D filing
  5. Key takeaways
  6. What happens if you file late
  7. Sources
Above the fold

If your startup is raising money from investors instead of selling stock on the open market, you're probably relying on an exemption from full SEC registration — and issuers relying on Rule 504 or 506 of Regulation D, or on Section 4(a)(5) of the Securities Act, must file a Form D notice with the SEC (and with any states requiring it). Here's how the filing works, what it must disclose, and when it's due, using a hypothetical $2 million raise as a guide.

What Form D is and who has to file it

Regulation D itself contains three exemptions that can trigger this filing obligation: Rule 504, Rule 506(b), and Rule 506(c). Form D must be filed electronically through the SEC's EDGAR system, since there is no paper filing option, and issuers need an EDGAR account with a CIK number and Login.gov credentials in place before they can submit it, which is worth arranging well ahead of the 15-day deadline.

The Rule 506(b) rules that shape the disclosure

Rule 506(b) is one of the exemptions available under Regulation D, and it comes with real limits. Securities sold in a Rule 506(b) offering are considered restricted securities, meaning investors generally cannot resell them without registration or an applicable exemption, such as the Rule 144 holding periods.

Worked example

  • first sale day: 0
  • clock days: 15
  • Formula: first sale day + clock days
  • Result: 15

What's inside a Form D filing

  • Filing method: submitted electronically through EDGAR, since the SEC does not accept paper Form D filings.

Key takeaways

  • Any issuer relying on Rule 504, Rule 506, or Section 4(a)(5) must file Form D with the SEC and any states requiring it.
  • The filing is due within 15 calendar days of the first sale, with a next-business-day extension if day 15 falls on a weekend or holiday.
  • The clock starts when the first investor is irrevocably committed, which can be the date the issuer receives a signed subscription agreement or check.
  • Rule 506(b) bars general solicitation.
  • Missing the 15-day deadline does not by itself void the exemption, but Rule 507 lists potential consequences for noncompliance, and the SEC says issuers should file in good faith as soon as practicable once they realize they missed it.

What happens if you file late

Does missing the 15-day Form D deadline automatically kill the exemption?

No. The requirement to file within 15 calendar days is not itself a condition for keeping the Rule 504, Rule 506(b), or Rule 506(c) exemption, though Rule 507 lists potential consequences for noncompliance, and issuers who have a court order finding a Rule 503 violation can be barred from relying on Regulation D exemptions in future offerings, and the SEC advises issuers to make a good faith effort to file as soon as practicable once they discover a missed deadline.

Can this startup advertise its $2 million raise publicly?

No, not under Rule 506(b), which does not permit general solicitation.

Can the securities be resold right away by investors?

Not freely. Purchasers in a Rule 506(b) offering receive restricted securities, which come with resale limitations.

Is there a way to file Form D by mail?

No. Form D must be filed electronically through the SEC's EDGAR system, and there is no paper filing option.

Sources

Below the fold · The bottom line

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