Written by: Alexander Rodriguez, Esq., Managing Principal. Updated August 2026.
Choose Rule 506(b) when your investors come from relationships you already have and you want the simplest path. Choose Rule 506(c) when you need to market the raise publicly and every investor can be verified as accredited. The mistake founders make is not the choice itself. It is marketing publicly first and choosing afterward, which forecloses 506(b).
The two rules side by side
| Rule 506(b) | Rule 506(c) | |
|---|---|---|
| Offering limit | None | None |
| Public marketing | Prohibited | Permitted |
| Who can invest | Accredited investors, plus up to 35 sophisticated non-accredited | Verified accredited investors only |
| Accreditation standard | Issuer’s reasonable belief; self-certification is customary | Reasonable steps to verify, documented per purchaser |
| Disclosure document | Required content if any non-accredited investor participates; PPM customary regardless | No prescribed content; PPM customary; antifraud liability applies to all marketing |
| SEC filing | Form D within 15 days of first sale | Form D within 15 days of first sale |
| State filings | Notice filings and fees | Notice filings and fees |
| Best fit | Raises from an existing network | Funnel, content, and ad-driven raises |
Why 506(b) remains the default
Most private raises still run under Rule 506(b) because it asks the least of investors. Self-certification of accredited status is customary, no verification file is built per purchaser, and the raise stays out of public view. For a founder with committed angels or a sponsor with a repeat investor list, 506(b) closes with the least friction.
The constraint is absolute, though: no general solicitation. No launch tweet, no public webinar, no podcast mention, no cold email blast. One public statement about an open raise can take 506(b) off the table for that offering. The discipline has to hold across the whole team, including advisors and anyone raising on your behalf.
When 506(c) earns its extra work
Rule 506(c) exists for raises that need an audience they do not already have. Marketing is open: paid ads, social content, public events, press. The price is verification. Every purchaser must be verified as accredited through reasonable steps, and the issuer keeps the records that prove it.
Verification is lighter than it used to be. Since March 2025, SEC staff guidance recognizes a minimum-investment pathway: at qualifying minimums of $200,000 for individuals and $1,000,000 for entities, with written representations including that the minimum is not third-party financed, the minimum itself is the verification. Below those minimums, the rule’s safe harbors and third-party verification services carry the load.
The decision in four questions
1. Where do your investors come from? Existing relationships point to 506(b). Strangers reached through marketing require 506(c).
2. Will anyone non-accredited invest? Up to 35 sophisticated non-accredited investors can join a 506(b) raise, with required disclosure. 506(c) admits none.
3. What are your minimums? Institutional-scale minimums make 506(c) verification nearly frictionless under the 2025 pathway. Small checks make verification the funnel’s bottleneck.
4. What is the next raise? Public marketing builds a durable audience; private raises build a track record quietly. The rule you choose shapes what you can say in public between raises.
Can you switch?
Moving from private to public works cleanly. An offering that began under 506(b) can move to 506(c) if no general solicitation occurred before the switch and every sale afterward meets 506(c)’s conditions, including verification of all purchasers. The integration framework in Rule 152 governs how the two phases relate.
The reverse is harder. Once a raise has been publicly solicited, a later 506(b) offering has to show that its investors were not brought in through that solicitation. Current SEC staff guidance permits selling to previously solicited prospects in a new 506(b) offering only where the issuer established a substantive relationship with them before the new offering commenced. In practice, public marketing is a one way door for the offering it touches, which is why the choice is made before the first public word, not after.
Frequently asked questions
Does 506(c) cost more or take longer?
It adds a verification step per investor and marketing review, and at qualifying minimums the 2025 pathway removes most of the document collection. The bigger cost difference is usually the marketing itself, not the legal work.
Can I talk to investors before choosing?
Conversations with people you have a substantive preexisting relationship with are not general solicitation. Public statements are. Keep the raise private until the rule is chosen and the documents are ready.
Do both rules preempt state registration?
Yes. Rule 506 offerings are covered securities, and states are limited to notice filings and fees. Blue sky work under either rule is administrative.
Do I still need a PPM if all my investors are accredited?
No rule prescribes one under either 506(b) with accredited-only investors or 506(c), but antifraud liability applies to everything you tell investors, and the PPM is the record that disclosure was accurate and complete. Most raises of meaningful size use one for exactly that reason.
This article is general information, not legal advice. Talking to us about your raise does not create an attorney-client relationship.
To work through the choice for your raise, see the firm’s Regulation D practice or call (202) 860-1210.
