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Reg D, Reg CF and Reg A+: A Founder's Map of US Fundraising Exemptions

Every dollar you raise is a securities offering. Which exemption you use decides who can invest, what you may say publicly, and what you must file.
Investor Relations Team
  • July 16, 2026
    August 1, 2026
  • 8 min read
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Reg D, Reg CF and Reg A+: A Founder's Map of US Fundraising Exemptions

Here is the fact that surprises most first-time founders: under US law, selling equity in your startup is selling a security, and every security sold in the United States must either be registered with the SEC or fit an exemption.

Registration means an IPO-scale process. Nobody raising a seed round is registering. Which means every private round you have ever heard of — every SAFE, every angel cheque, every Series A — is relying on a specific exemption, whether or not anyone said so out loud.

Choosing the wrong one, or breaking the rules of the one you chose, has real consequences: rescission rights that let investors demand their money back, enforcement exposure, and a diligence problem that can derail a later round. Choosing well is mostly a matter of understanding four options.

1. Rule 506(b): The Default

This is the exemption behind the overwhelming majority of US venture rounds.

  • Raise limit: unlimited
  • Who can invest: unlimited accredited investors, plus up to 35 non-accredited investors who are "sophisticated"
  • Public marketing: prohibited
  • Verification: not required — you may reasonably rely on an investor's own representation that they are accredited
  • Filing: Form D with the SEC within 15 days of first sale, plus state notice filings

The prohibition on general solicitation is the constraint that matters, and it is broader than founders expect. You cannot advertise the round, post about it publicly, present at an event open to the general public, or email people you have no prior relationship with. The exemption assumes you are approaching people you or your advisors already know — a pre-existing, substantive relationship.

This is why founders are told not to tweet "we're raising!" It is also why warm introductions dominate the market: the legal structure of the default exemption actively rewards existing networks, and it is a large part of why building relationships before you need capital is not merely good practice but practically necessary.

One further trap: bringing in non-accredited investors, even the permitted 35, triggers substantial disclosure obligations resembling a registration statement. In practice almost every company simply restricts the round to accredited investors and avoids the issue entirely.

2. Rule 506(c): Public Marketing, With Verification

Introduced under the JOBS Act, 506(c) trades one constraint for another.

  • Raise limit: unlimited
  • Who can invest: accredited investors only — no exceptions
  • Public marketing: permitted. You may advertise the round openly.
  • Verification: required. You must take reasonable steps to verify accredited status. A tick-box is not enough.
  • Filing: Form D, as with 506(b)

Traditional verification methods are intrusive: reviewing tax returns, bank and brokerage statements, or obtaining written confirmation from a licensed attorney, CPA, broker-dealer or investment adviser. Many investors, particularly experienced angels, simply decline to hand over their tax returns to a seed-stage company — which is why 506(c) has historically been used far less than its flexibility would suggest.

The 2025 verification safe harbour

In March 2025, the SEC's Division of Corporation Finance issued a no-action letter that materially changed the calculus. It confirmed that an issuer can satisfy the verification requirement by relying on a sufficiently high minimum investment amount, combined with specific written representations, absent any indication to the contrary.

In broad terms, the framework contemplates:

  • A minimum investment of at least $200,000 for natural persons
  • A minimum of $1 million for entities that qualify as accredited solely because all of their equity owners are accredited — with a lower threshold available where the entity has fewer than five natural-person owners
  • Written representations from the purchaser that they are accredited and that the investment is not financed by a third party for the purpose of making it
  • No knowledge on the issuer's part suggesting otherwise

The logic is straightforward: someone able to write a $200,000 cheque without third-party financing is almost certainly accredited. For funds and companies raising from larger cheque writers, this removes the main practical obstacle to using 506(c) and makes open marketing genuinely viable. It is one of the more significant private-markets developments in years, and it remains under-used simply because it is not widely known.

3. Regulation Crowdfunding (Reg CF): Everyone Can Invest

Reg CF is the exemption that lets your customers, users and community invest — not just wealthy individuals.

  • Raise limit: $5 million in any rolling 12-month period
  • Who can invest: anyone, accredited or not, subject to per-investor limits
  • Public marketing: permitted, but tightly constrained — communications outside the portal are limited to brief notices directing people to the offering page
  • Channel: must be conducted through a single SEC-registered funding portal or broker-dealer
  • Filing: Form C before launch; Form C-AR annually thereafter

Non-accredited investors face caps calculated from their income and net worth — broadly, a percentage of the greater of the two, with a floor for smaller investors and an overall ceiling. The specific dollar thresholds are periodically adjusted for inflation, so check the current figures rather than relying on a number in an article.

Financial statement requirements scale with the amount raised: small raises need only financials certified by a company officer, mid-sized raises need review by an independent accountant, and larger raises need an audit — with relief that lets first-time issuers use reviewed rather than audited statements up to a higher threshold. That relief matters, because an audit for an early-stage company is a genuine cost and delay.

Where Reg CF genuinely works: consumer brands with passionate users, community-rooted businesses, and companies whose customers are a natural investor base. The round doubles as a marketing campaign, and thousands of small holders can become genuine advocates.

Where it does not: as a substitute for institutional capital. Later investors scrutinise Reg CF cap tables carefully, and a badly structured raise that puts thousands of individuals directly on the cap table can create real friction. Most good portals now use a nominee or custodial structure that consolidates crowdfunding investors into a single line — the same logic as an SPV. Insist on it. Our comparison of equity crowdfunding versus traditional fundraising goes deeper on the trade-offs.

4. Regulation A+: The Mini-IPO

Reg A+ sits between a private placement and a full public offering, and it comes in two tiers.

Tier 1: up to $20 million in 12 months. No ongoing SEC reporting, but the offering must be reviewed and cleared by every state in which you sell — which is why relatively few issuers use it.

Tier 2: up to $75 million in 12 months. State review is pre-empted, which is the main attraction, but the obligations are substantial:

  • Audited financial statements
  • An offering circular on Form 1-A that the SEC must qualify before you sell anything
  • Ongoing reporting — annual (1-K), semi-annual (1-SA) and current event (1-U) filings
  • Investment limits for non-accredited investors, unless the securities are listed on a national exchange

Realistically, a Reg A+ offering takes several months and costs a meaningful six-figure sum in legal, audit and marketing before you raise anything. It suits later-stage companies with a genuine consumer following, real estate and fund sponsors, and businesses that want tradeable securities without a full listing. It is not a seed-stage instrument.

5. Rules That Cut Across All of Them

Integration

Historically, running two offerings close together risked the SEC treating them as one — potentially destroying an exemption. The current framework, in place since 2021, provides clearer safe harbours, including a general rule that offerings more than 30 days apart are not integrated where certain conditions are met. It made concurrent and sequential raises far more workable, but the analysis still matters, particularly when moving between a publicly marketed offering and a private one.

Bad actor disqualification

Rule 506(d) disqualifies an offering from using Regulation D if certain "covered persons" — the company, its directors, executive officers, 20% shareholders, and anyone paid to solicit investors — have specified disqualifying events in their history, such as securities fraud convictions or SEC orders. You must conduct a factual inquiry into every covered person. In practice this means a bad-actor questionnaire circulated before every round. Skipping it is a common and unnecessary risk.

Resale restrictions

Securities sold under these exemptions are restricted. They cannot be freely resold, and holders generally need to satisfy Rule 144 — which imposes a holding period and other conditions — or find another exemption. This is why secondary sales in private companies require company cooperation, and why your stock purchase agreement contains transfer restrictions and a right of first refusal.

Blue sky filings

Federal exemption does not automatically mean state exemption. Rule 506 offerings are covered securities, so states may only require a notice filing and a fee — but those filings are mandatory in each state where an investor resides, and missing them is a routine diligence finding.

Reg S

Offerings made entirely outside the United States to non-US persons can rely on Regulation S, frequently in parallel with a domestic Reg D offering. Useful for internationally distributed rounds, and it carries its own conditions on offshore transactions and directed selling efforts.

6. Choosing, in Practice

  • Standard venture round, warm introductions, accredited investors only — Rule 506(b). This is the answer for the vast majority of companies.
  • You want to market the round openly, or you are raising from a public audience of larger cheque writers — Rule 506(c), using the 2025 minimum-investment safe harbour to manage verification.
  • You have a consumer community you want on the cap table and are raising up to $5 million — Reg CF, through a reputable portal, with a nominee structure.
  • Later-stage, consumer-facing, raising $20 million or more from the public — Reg A+ Tier 2, with proper advisers and a real budget.

One practical warning that recurs: do not start marketing publicly and then try to fall back to 506(b). Once you have generally solicited, that exemption is unavailable for the offering. Decide before you post anything.

Frequently Asked Questions

What happens if we get the exemption wrong?

The most immediate consequence is a right of rescission — investors can demand their money back, with interest, potentially for years afterwards. Beyond that lies enforcement exposure and, very practically, a diligence finding that stalls your next round while counsel works out how to fix it.

Do SAFEs and convertible notes need an exemption?

Yes. They are securities. The same rules apply to a $25,000 SAFE as to a $25 million priced round.

Is Form D really mandatory?

Yes, within 15 days of first sale, and it is public. Some founders resist because it discloses the offering amount, but the alternative — a missing filing that surfaces in diligence — is worse. Note that Form D asks for the offering size, not your valuation.

Can we run a Reg CF and a Reg D round at the same time?

Yes, and it is now reasonably common — an institutional round under 506(b) or 506(c) alongside a community round under Reg CF. The integration safe harbours make this workable, but the sequencing and the marketing of each must be handled deliberately with counsel.

Do these rules apply if all our investors are outside the US?

If you are a US company selling to non-US persons in offshore transactions, Regulation S is the relevant framework, and local law in each investor's jurisdiction also applies. Cross-border rounds need advice in both directions.

The Bottom Line

Most founders never think about which exemption they are using, and most of the time that is fine, because their lawyer defaults them into 506(b) and the round is conventional.

It stops being fine the moment you want to market a round publicly, bring in non-accredited investors, or raise from a community. Those are the moments where the choice determines what you are allowed to do — and where the 2025 verification safe harbour has quietly made a previously awkward option much more usable.

Global Capital Network connects founders with accredited investors through our network and events. If you are planning a raise and want to understand the structure before you start, get in touch.

This article is general information, not legal advice. US securities law is complex and the details are fact-specific. Engage qualified securities counsel before conducting any offering.

Key Takeaways
  • Rule 506(b) allows no public marketing but accepts investor self-certification; Rule 506(c) permits open solicitation but requires you to actively verify every investor is accredited.
  • A 2025 SEC no-action letter created a practical verification shortcut for 506(c): high minimum investments plus written representations can satisfy the verification requirement.
  • Regulation Crowdfunding lets non-accredited investors participate up to a $5M annual cap, but it must run through a registered portal and brings ongoing public reporting.
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