Rule 506(b)
Rule 506(b) is a Regulation D safe harbor that permits an issuer to raise an unlimited amount without Securities Act registration while prohibiting general solicitation and allowing limited participation by sophisticated non-accredited investors.
The defining feature is private distribution
Rule 506(b) is one of the most widely used exemptions for private capital raising. It sits inside Regulation D and functions as a safe harbor under Securities Act Section 4(a)(2).[1]
An issuer using Rule 506(b) can raise an unlimited amount of capital, but the offering cannot be marketed through general solicitation or general advertising.[1]
That distribution restriction is not a technical detail. It is the central dividing line between Rule 506(b) and Rule 506(c).
Who can invest?
A Rule 506(b) offering may be sold to:
- an unlimited number of accredited investors
- no more than 35 non-accredited investors during the applicable 90-calendar-day period
- non-accredited purchasers who, alone or with a purchaser representative, have enough financial and business knowledge to evaluate the merits and risks of the investment[1][2]
The presence of even a small number of non-accredited investors can materially increase the issuer's disclosure obligations.
What changes when non-accredited investors participate?
If non-accredited investors purchase in the offering, the issuer generally must provide them specified disclosure information and financial statements, and must make itself available to answer questions.[1]
The practical implication is important: many 506(b) offerings are structured for accredited investors only even though the rule can permit limited non-accredited participation.
What counts as general solicitation?
Broad public marketing can create a problem for a 506(b) offering.
Examples can include public advertisements, unrestricted internet promotion or mass outreach designed to condition the market for the securities. A pre-existing, substantive relationship with prospective investors is one fact that can help support a private-offering analysis, but the legal inquiry depends on the circumstances.[1]
The rule therefore rewards controlled distribution rather than public promotion.
Form D and state notice filings
An issuer relying on Rule 506(b) generally must file Form D within 15 days after the first sale.[4]
Rule 506 offerings also benefit from federal preemption of state registration and qualification requirements, but states can still require notice filings and fees.[1]
A Form D filing is a notice filing. It is not SEC approval of the issuer, the securities or the valuation.
Restricted securities
Purchasers in a Rule 506(b) offering receive restricted securities.[1]
That means the investment is not automatically freely tradable. A later resale generally requires registration or an available exemption, and practical liquidity can remain limited even when a legal resale path exists.
506(b) versus 506(c)
| Feature | Rule 506(b) | Rule 506(c) |
|---|---|---|
| General solicitation | Prohibited | Permitted |
| Accredited purchasers | Unlimited | All purchasers must be accredited |
| Non-accredited purchasers | Limited number, sophistication required | Not permitted |
| 506(c)-style verification | Not required | Required |
| Federal offering cap | None | None |
The two rules are related, but they are not interchangeable.
Common mistakes
“506(b) is an accredited-investor-only exemption.”
No. It can permit limited sophisticated non-accredited purchasers, although extra requirements apply.
“No public advertising means the issuer cannot communicate with investors.”
No. Private offering activity can involve direct communication. The issue is whether the offering uses impermissible general solicitation.
“Form D makes the deal registered.”
No. Rule 506(b) remains an exempt offering.
“Unlimited raise means unlimited flexibility.”
No. The absence of a federal dollar cap does not remove solicitation, investor, disclosure, antifraud or resale constraints.
Example
An investor evaluating a transaction involving Rule 506(b) should identify the exact exemption, eligibility rule, disclosure framework and resale constraints that apply.
Professional note
A serious review of a 506(b) deal should begin with how investors were sourced, whether any general solicitation occurred, who actually purchased, what disclosures were delivered and what resale restrictions apply. Those facts matter more than the shorthand label “Reg D.”
Related terms
- Lock-Up Agreement
A lock-up agreement restricts specified shareholders from selling shares for a stated period after an IPO or other transaction.
- Registration Statement
A registration statement is a filing with the SEC that provides required disclosures when a security or securities offering is registered under federal securities laws.
- Private Placement
A private placement is a non-public offering of securities conducted in reliance on an available exemption from registration under the Securities Act of 1933.
- Regulation D
Regulation D is a set of SEC rules that provides exemptions and safe harbors from Securities Act registration for qualifying securities offerings.
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