SEC Regulation D: Private Placement Exemptions

Regulation D is an SEC rule that provides safe harbours for companies to raise capital from investors without registering the securities with the SEC. The most common routes—Rules 504, 506(b), and 506(c)—have different thresholds for who can invest, how the offering is conducted, and what paperwork must be filed. For startups and mature private companies, Reg D is the primary path to capital.

The Purpose of Reg D

The SEC’s standard path to raising capital is a registered public offering—the issuer files a prospectus, undergoes SEC review, and the securities are tradable in public markets. Registration is expensive (hundreds of thousands to millions in legal and accounting fees) and burdensome (extensive disclosure, periodic reporting, and compliance).

Regulation D exempts certain offerings from registration if the issuer meets conditions designed to protect investors through limited distribution, investor sophistication, or both. The SEC’s theory is that accredited investors (high net-worth individuals) or closely-vetted investors need less protection, and that offers to a small group of non-accredited investors known to the company are less likely to cause fraud.

Reg D lets companies raise capital quickly and privately. However, securities sold under Reg D cannot be resold freely. Investors face months or years of illiquidity, and the company avoids continuous public disclosure.

Rule 504: The Smallest Raises

Rule 504 permits raises of up to $10 million in a 12-month period. There is no limit on who can invest—accredited or non-accredited.

However, the catch is that if any non-accredited investors participate, the securities must be registered under state law (“blue-sky laws”). This state registration can add cost and complexity. Alternatively, if the issuer uses only conditional methods (e.g., raises only from existing employees or through existing relationships), it can avoid state registration even with non-accredited investors.

Rule 504 is commonly used by small companies, often LLC equity financing rounds or early equity crowdfunding. It is fast to execute but state registration can be a friction point.

Rule 506(b): Unlimited Raise, Pre-Existing Relationships

Rule 506(b) has no ceiling on the amount raised, but imposes strict conditions on who can participate and how the offering is conducted.

Investor composition: The offering can accept up to 35 non-accredited investors, plus an unlimited number of accredited investors. The critical caveat: the issuer (or its advisor) must have a pre-existing relationship with every non-accredited participant. A pre-existing relationship typically means the issuer or its agents have had contact with the investor for at least 10 business days and have reasonable basis to believe the investor is financially sophisticated.

No general solicitation: The issuer cannot advertise the offering broadly (no online ads, no press releases, no social media pitches). Communications must be limited to investors already known to the issuer or intermediaries.

Information requirements: The issuer must provide basic financial and business information to investors, though standards are looser than for a registered offering. Unaccredited investors get more detailed information than accredited investors.

Form D filing: The issuer files Form D with the SEC within 15 days of the first sale.

506(b) is the most common Reg D route for venture capital and growth equity. Funds can accept a small number of non-accredited investors (e.g., an employee or a customer’s family member) while keeping the core investor base accredited.

Rule 506(c): Unlimited Raise, Accredited-Only

Rule 506(c) allows unlimited fundraising but requires all investors to be accredited. There is no limit on the number of accredited investors.

General solicitation allowed: Unlike 506(b), the issuer can advertise the offering broadly—on websites, in emails, on social media. This allows companies to reach a wider accredited investor audience.

Verification requirement: The issuer must take reasonable steps to verify that each investor is accredited. Verification can include reviewing tax returns, net worth statements, third-party verification services, or representation letters supported by documentation.

Information requirements: Accredited investors receive less detailed information than required for registered offerings or for non-accredited participants in a 506(b). The issuer can provide minimal financials or even just a pitch deck.

Form D filing: The issuer files Form D with the SEC within 15 days of the first sale.

506(c) is popular for larger rounds from institutional accredited investors and high-net-worth individuals. The ability to solicit broadly via websites and online platforms (sometimes called “Reg D advertising” or “online offerings”) has accelerated adoption.

Definition of “Accredited Investor”

The SEC defines an accredited investor as an individual who meets at least one of the following thresholds:

• Income: Annual income of $200,000 (or $300,000 joint) for the prior two years AND reasonably expected to exceed this in the current year.
• Net worth: Net worth exceeding $1 million, excluding the primary residence. This is critical—your home does not count.
• Institutional: Banks, insurance companies, registered investment companies, and other entities with $5 million+ in assets.
• Accredited investor frameworks: Officers or directors of the company raising capital; certain financial professionals and institutions.

The $200,000 and $1 million thresholds have not been adjusted for inflation since the 1980s, so “accredited” has become relatively more achievable for high-income earners and successful professionals.

Form D and Other Filings

Within 15 days of the first sale, the issuer must file a Form D with the SEC. Form D is a brief notification, not a registration. It discloses:

• The names and addresses of company officers and principals.
• The amount raised (in ranges, not exact figures).
• Which rule exemption is being used (504, 506(b), 506(c), or another).
• The type and nature of the securities (common stock, preferred stock, debt, etc.).

Copies of Form D are also filed with each state in which offering materials have been distributed.

Form D is available to the public on the SEC’s EDGAR system. Many investors and data firms track Reg D filings to discover emerging companies.

Resale Restrictions and Liquidity

Securities sold under Reg D are unregistered. This means they cannot be freely resold. Investors cannot dump shares on the open market without triggering additional SEC compliance obligations or another exemption.

Most investors in Reg D offerings face a holding period of 6 months to 1 year (depending on the company’s status as “reporting” or “non-reporting” with the SEC and the specific resale provisions). Even after the holding period, resales are typically restricted through Rule 144 resales (if the holder is not an affiliate of the company) or negotiated private sales.

This illiquidity is a trade-off. The company saves on registration costs and disclosure burden. Investors accept illiquidity in exchange for the higher returns they believe come from early-stage or private company investment.

Bad Actors and Disqualifications

The SEC prohibits certain felons and “bad actors” (people convicted of securities violations, certain frauds, or tax evasion) from relying on Reg D exemptions. A company that raises under Reg D cannot knowingly sell to a bad actor. This creates a compliance burden—companies must verify that investors are not on the SEC’s disqualification list.

Integration and Aggregation

If a company conducts multiple offerings within a short time frame or under similar terms, the SEC may “integrate” them—treating them as a single offering for purposes of the $10 million Rule 504 cap or the 35-person limit under 506(b). Integration can inadvertently disqualify an offering. Companies planning multiple rounds within 12 months should be careful about timing and structure.

Practical Use

In practice, most startups and venture-backed companies raise under 506(c), especially once they have a lead investor (a VC fund) that anchors the round as an accredited investor. The ability to solicit broadly via online platforms and the absence of a numerical investor limit make 506(c) the natural choice for scaling capital raises.

506(b) is used by smaller companies that want to include a few non-accredited investors (friends, family, or customers) without needing to solicit broadly.

Rule 504 is less common now because state registration adds friction, but it is useful for small bootstrapped companies that want to stay under $10 million and avoid SEC Form D disclosure.

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