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Rule 506(b) vs 506(c): what changes when you advertise.

6 MIN READ · LAST REVIEWED OCTOBER 2026

In short
  • Both are Regulation D exemptions with no cap on the amount raised.
  • 506(b) does not allow general solicitation, but can include up to 35 non-accredited, sophisticated purchasers in any 90-day period.
  • 506(c) allows public advertising, but every investor must be accredited, and the issuer must take reasonable steps to verify it.

Two paths under Rule 506

Most private offerings in the United States rely on Rule 506 of Regulation D. It lets an issuer raise an unlimited amount of money without registering the offering with the SEC, as long as it follows the conditions of the rule. There are two versions, and the biggest difference between them is whether you can advertise.

Rule 506(b)Rule 506(c)
Advertising and general solicitationNot allowed. Investors generally come through existing relationships.Allowed, including public websites, ads and social media.
Who can investUnlimited accredited investors, plus up to 35 non-accredited purchasers in any 90-day period, each with enough knowledge and experience in financial matters, alone or with a representative.Accredited investors only.
Confirming accredited statusThe issuer must reasonably believe investors are accredited; questionnaires and self-certification are common.The issuer must take reasonable steps to verify that every investor is accredited.
DisclosureSpecific disclosure is required if any non-accredited investor participates.No information package is required. Anti-fraud rules always apply, and Rule 506(e) disclosure of pre-2013 bad-actor events applies to every Rule 506 offering.
Amount you can raiseNo limit.No limit.
Form DFiled on EDGAR within 15 calendar days after the first sale.Filed on EDGAR within 15 calendar days after the first sale.
Bad actor rules (506(d))Apply.Apply.

Why 506(c) changed the market

Rule 506(c) took effect in September 2013, after the JOBS Act. For the first time, private offerings could advertise to the public. That opened private capital to far more investors, and it also made the market louder. Investors now see many more offerings, through many more channels, often with very little to tell them apart.

What “reasonable steps” means under 506(c)

Under 506(c), a check-the-box questionnaire is not enough. The issuer has to take reasonable steps to verify each investor’s status, based on the facts of the offering and the investor. Common methods include reviewing tax returns or W-2s to confirm income, reviewing recent statements and a credit report to confirm net worth, or relying on a recent written confirmation from a CPA, attorney, registered broker-dealer or SEC-registered investment adviser.

In March 2025, SEC staff said in a no-action letter that an issuer could reasonably conclude it took reasonable steps when the offering requires a minimum investment of at least $200,000 for an individual or $1,000,000 for an entity (a binding commitment paid in installments counts), the investor states in writing that it is accredited and that the minimum is not financed, in whole or in part, by a third party for this investment, and the issuer has no actual knowledge to the contrary. This is a staff view, not a rule, and it depends on its stated facts. Talk with your counsel about which approach fits your offering.

Choosing between themIf you plan to market your offering publicly, 506(c) is built for that, and accreditation verification becomes part of every investment. If you will raise only from people you already know, 506(b) may fit. Either way, the choice is made with counsel, and it shapes how you raise for the life of the offering.
HOW INVESTSECURE.ORG HELPS

For 506(c) offerings, Accreditation Verification is coming soon. For every Rule 506 offering, Bad Actor Check for Offerings screens all Covered Persons the issuer names, at each scheduled review.

Compliance Verifications

This guide is for education only and is not legal, tax or investment advice. It summarizes the rules and does not cover every condition.

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Important information. InvestSecure.org is a verification service. It is not a broker-dealer, investment adviser, funding portal, law firm or accounting firm, and it does not provide legal, tax, accounting or investment advice. InvestSecure.org does not approve, rate, recommend or endorse any issuer, offering or person; a verification is not a recommendation to invest, and no fee depends on the outcome of an offering. Each point reports what was verified or remains unverified against specified sources as of its review date; no point establishes continuing truth or Rule 506 compliance. It does not assess quality, value or performance, or guarantee that a fact will remain true. Issuers remain solely responsible for their offerings, disclosures and compliance with securities laws. Private offerings are speculative and illiquid, and investors may lose their entire investment. Names, records and figures shown in samples are illustrative, and prices may change. InvestSecure.org and InvestSecure Active Verification™ are trademarks of InvestSecure LLC. © 2026.