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Glossary · Securities rules

Regulation D

Regulation D is the SEC rule set that lets issuers sell securities unregistered under Rule 504 or 506, with a Form D notice due 15 days after the first sale.

By Breakwater Exchange · Reviewed by our 1031 advisory team · Last reviewed

The short answer

Regulation D is the set of SEC rules, Rules 500 through 508 under the Securities Act, that lets an issuer sell securities without registering them if it meets the conditions of Rule 504 or Rule 506. Rule 504 caps an offering at $10,000,000 over a 12-month window, while Rule 506 has no dollar limit and is the exemption DST sponsors rely on. Every issuer using either rule files a short notice on Form D with the SEC within 15 calendar days after the first sale.

At a glance

Rule 504Up to $10,000,000 of securities in a 12-month period
Rule 506No dollar limit; split into 506(b), no general solicitation, and 506(c), verified accredited investors only
Form DNotice due 15 calendar days after the first sale, filed on EDGAR
StatesCannot require registration of a Rule 506 offering but may require notice filings and fees

Regulation D is a short menu: definitions, general conditions, a filing rule and two exemptions.

Each piece answers a different question an investor might ask about a DST offering, from who counts as accredited to what happens if the issuer slips on a minor term.

  • Rule 501 defines terms, including accredited investor.
  • Rule 502 sets general conditions: integration, information for non-accredited buyers, the ban on general solicitation and the limits on resale.
  • Rule 503 requires the Form D notice of sales.
  • Rule 504 exempts offerings up to $10,000,000, less amounts sold in the prior 12 months.
  • Rule 506 exempts offerings of any size under paragraph (b) or (c) and bars 'bad actor' issuers under paragraph (d).
  • Rules 507 and 508 deal with disqualification for Form D injunctions and with insignificant deviations from a condition.

A DST's Form D tells you which exemption it claims, who is paid to sell it and how much.

Form D is public on EDGAR. Item 6 shows the exemption box checked, Rule 506(b) or 506(c); Item 11 gives the minimum investment; Item 12 lists each sales compensation recipient with its CRD number; Item 15 reports sales commissions and finders' fees; and Item 16 reports proceeds paid to executive officers, directors or promoters.

Hypothetical: a DST's Form D shows a $25,000,000 offering, Rule 506(b) checked and $1,250,000 of estimated sales commissions. That is 5% of the raise, before any dealer-manager, organization or acquisition costs, which appear in the PPM rather than on the form. Total costs are covered under offering load, and a field-by-field walkthrough is at reading a DST PPM and Form D.

The SEC counts the 15 days from the date the first investor is irrevocably contractually committed to invest, and charges no filing fee.

It bites on marketing, resale and state oversight, not on the tax treatment of the exchange.

Rule 502(c) bars general solicitation and general advertising, including newspaper or broadcast advertising and seminars whose attendees were invited by general solicitation, except where Rule 504(b)(1) or Rule 506(c) allows it. That is why a Rule 506(b) DST is shown to you privately by a broker-dealer or adviser rather than advertised. Rule 502(d) makes the securities restricted. Under Securities Act section 18 a Rule 506 security is a covered security that states cannot make the issuer register, though they keep notice filings, fees and anti-fraud authority.

Regulation D says nothing about whether the interest qualifies for section 1031. That question is answered by the tax rules in Rev. Rul. 2004-86, and the securities question of who may sell it is covered at is a DST a security and who can sell it.

Related questions

Is Regulation D the same thing as a private placement?

Not quite. A private placement is any offering exempt under section 4(a)(2), and Rule 506 is a safe harbor that gives that exemption objective conditions; Rule 504 is a separate exemption with its own $10,000,000 limit.

Where can I find a DST's Form D?

On the SEC's EDGAR system, where Form D notices and amendments are filed online. Search by the trust's name and read the latest amendment, since commission figures may be estimates.

Does a Rule 506 offering have to be registered in my state?

No. Section 18 of the Securities Act preempts state registration for Rule 506 offerings, but your state may still require a notice filing and fee and can act against fraud.

Sources

Checked against these publications on September 30, 2026. Rules and figures change; confirm the current version with your CPA or attorney before you act. This page is general information, not tax or legal advice.

  1. 17 CFR 230.501, Definitions
  2. 17 CFR 230.502, General conditions
  3. 17 CFR 230.503, Filing of notice of sales
  4. 17 CFR 230.504, Offerings not exceeding $10,000,000
  5. 17 CFR 230.506, Rule 506
  6. SEC, Form D and instructions
  7. SEC, Filing a Form D Notice
  8. 15 U.S. Code 77r, Securities Act section 18

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