When the JOBS Act directed the SEC to permit advertising in private offerings, the result was not a replacement for the existing rule but a second lane beside it. Rule 506(c) arrived in 2013 alongside Rule 506(b), and sponsors have been choosing between them ever since.
The choice comes down to a single trade: advertising freedom in exchange for verification obligation. Everything else follows from that.
The comparison
| Rule 506(b) | Rule 506(c) | |
|---|---|---|
| General solicitation | Prohibited | Permitted |
| Accredited investor status | Reasonable belief, generally supported by investor representations | Must be verified by the issuer through reasonable steps |
| Non-accredited purchasers | A limited number permitted, if sophisticated | None permitted |
| Disclosure | None prescribed if all purchasers accredited; specific requirements apply if non-accredited purchasers participate | No prescribed package, but antifraud provisions apply |
| Form D | Required | Required |
| State preemption | Covered securities; notice filings still apply | Covered securities; notice filings still apply |
| Resale | Restricted securities | Restricted securities |
Both are safe harbors under Regulation D. Both produce restricted securities. Both require the same filings. The differences are concentrated in how investors are found and how their eligibility is established.
What Rule 506(b) actually restricts
The prohibition on general solicitation is the defining constraint, and it is broader than the phrase suggests. It is not limited to paid advertising. The traditional analysis asks whether the issuer or its agents had a substantive pre-existing relationship with the persons solicited — substantive meaning the issuer knew enough about the person’s financial circumstances and sophistication to evaluate their suitability, and pre-existing meaning the relationship was formed before the offering began.
Activities that routinely raise the question include a publicly accessible web page describing the offering’s terms, an open-registration webinar, a conference presentation to a general audience, a press interview discussing the raise, and social media posts about the offering.
The 2020 amendments to the exempt offering framework addressed certain communications — including demo day events and generic solicitations of interest before an exemption is selected — but the accommodations are narrow and highly conditioned. They do not convert Rule 506(b) into an advertising-permissive exemption, and whether a particular communication crosses the line remains a facts-and-circumstances question for counsel.
The practical risk is drift. An offering that begins with disciplined private outreach accumulates marketing activity over months — a website update, a podcast appearance, a newsletter — until someone asks whether the offering can still claim it was not generally solicited.
What Rule 506(c) actually requires
The advertising freedom is real and unambiguous: a 506(c) issuer may market publicly, run campaigns, and speak openly about the raise.
The cost is that every purchaser must be accredited and the issuer must take reasonable steps to verify it. A representation in the subscription agreement — sufficient under 506(b) — does not satisfy 506(c). The rule provides non-exclusive safe harbor methods for natural persons, covering income documentation, net worth documentation, and written confirmation from specified professionals; these are detailed in accredited investor verification. For offerings with large minimum investments, a March 2025 SEC staff no-action letter offers a lighter route: a sufficiently high minimum commitment, combined with specific written representations from the purchaser, can satisfy the verification requirement without collecting financial documents. That changes the calculation for sponsors whose tickets are large enough to qualify.
Two consequences follow that sponsors sometimes underestimate:
Friction at the point of sale. Investors are being asked for tax returns, brokerage statements, or a professional’s letter. Some decline. For an offering whose investor base expects a light process, this is a real conversion cost.
Data sensitivity. An issuer that reviews documents directly now holds highly sensitive personal financial records, with the retention, access control, and breach exposure that implies. Many sponsors route verification through third-party services or professional letters specifically to avoid holding the underlying documents.
Why 506(b) remains dominant in the alternatives channel
Given that 506(c) offers strictly more marketing freedom, its lower adoption in the non-traded product world is worth explaining.
The distribution model doesn’t need advertising. Sponsors selling through broker-dealer networks and RIA relationships reach investors through the advisor’s existing relationship with the client. The advisor already has the substantive pre-existing relationship. Advertising rights add little to a channel that was never advertising-dependent.
The verification burden falls where it is most awkward. In an advisor-intermediated sale, the verification requirement lands on the investor relationship the advisor owns, introducing friction into a process the advisor controls and is judged on.
Non-accredited flexibility has value. Rule 506(b)’s allowance for a limited number of non-accredited sophisticated purchasers matters for sponsors with legacy investors, employee investors, or long-standing relationships that do not meet accredited thresholds. Rule 506(c) forecloses this entirely.
Familiarity. Compliance infrastructure, document templates, and advisor training are all built around 506(b). Switching has a cost that produces no benefit unless advertising is genuinely wanted.
Where 506(c) is most used is where advertising genuinely changes the economics: sponsors raising directly from investors without an intermediated channel, platforms marketing to self-directed accredited investors, and offerings where reaching investors outside existing relationships is the entire distribution strategy.
Choosing
The decision resolves quickly once framed correctly. The question is not “which rule is better” but “is public marketing worth the verification cost in my distribution model?”
Choose 506(b) when distribution runs through advisors or existing relationships, when non-accredited participation matters, and when investor experience friction is a competitive concern.
Choose 506(c) when the offering needs to reach investors it has no relationship with, when marketing publicly is central to the raise, or when the sponsor wants to speak freely about the offering without continuously assessing whether a communication crossed a line.
One caution that applies in both directions: the choice should be made before any solicitation activity, not discovered afterward. Changing the exemption an offering relies on mid-raise implicates the integration framework and the treatment of investors already admitted, and is genuinely a legal question rather than an administrative one. The worst outcome is not choosing the less convenient rule — it is conducting a 506(b) offering with 506(c) marketing behavior.
This guide is educational and general; it is not legal advice. Exemption selection is fact-specific and should be structured with qualified securities counsel before solicitation begins.
Frequently Asked Questions
What is the difference between Rule 506(b) and 506(c)?
Rule 506(b) prohibits general solicitation and advertising, permits reliance on investor representations of accredited status, and allows a limited number of non-accredited sophisticated purchasers subject to disclosure requirements. Rule 506(c) permits general solicitation, requires that all purchasers be accredited, and requires the issuer to take reasonable steps to verify accredited status rather than relying on representations.
Can a 506(b) offering advertise at all?
No. General solicitation and advertising are prohibited under Rule 506(b), and the concept is broader than paid advertising—a publicly accessible offering page, an unrestricted webinar, a conference presentation, or press coverage can raise the question. The traditional analysis turns on whether a substantive pre-existing relationship existed with the offerees.
Can you switch from 506(b) to 506(c)?
Changing the exemption an offering relies on is possible but is a legal question rather than an administrative one, involving the integration framework and the treatment of investors already admitted. It should not be treated as a box change on Form D; structure any change with securities counsel before any solicitation occurs.
Why do most sponsors still use 506(b)?
Because the verification burden under 506(c) is real, because 506(b) permits a limited number of non-accredited sophisticated investors, and because sponsors distributing through broker-dealer networks already reach investors through existing relationships and gain little from advertising rights. The trade is advertising freedom for verification cost, and for many sponsors the advertising is worth less than the cost.
Does 506(c) allow non-accredited investors?
No. Every purchaser in a Rule 506(c) offering must be an accredited investor, with verification. Rule 506(b) is the path that permits a limited number of non-accredited purchasers, and their inclusion triggers specific information delivery requirements.
Sources
- Securities Act of 1933, Regulation D, Rules 502(b), 502(c), 506(b) and 506(c)
- Securities Act of 1933, Rule 501(a) (definition of accredited investor)
- SEC Division of Corporation Finance staff no-action letter on Rule 506(c) verification through minimum investment amounts (March 12, 2025)
- Securities Act of 1933, Rule 152 (integration framework, as amended)
