SEC Regulation D vs Regulation A: Which Is Right for Your Capital Raise?
Last updated: 2026-04-05 — ComplianceStack Editorial Team
Regulation D and Regulation A are the two most common SEC exemptions companies use to raise capital without a full registered offering. They differ significantly in who can invest, how much you can raise, what you must disclose, and the ongoing reporting burden.
Regulation D vs Regulation A+: Side-by-Side
| Dimension | Regulation D | Regulation A+ |
|---|---|---|
| Max raise (per 12 months) | Unlimited (Rule 506b/c); $10M (Rule 504) | Tier 1: $20M; Tier 2: $75M |
| Who can invest | 506b: Unlimited accredited + up to 35 sophisticated; 506c: accredited only | Tier 1 & 2: Anyone (including non-accredited investors) |
| General solicitation | 506b: No; 506c: Yes (accredited only) | Yes — can advertise publicly |
| SEC filing | Form D (brief notice, not a full registration) | Form 1-A offering statement (must qualify before selling) |
| SEC review | No review — just file Form D | SEC reviews and qualifies the offering — takes months |
| Disclosure document | No formal requirement; best practice is a PPM | Offering circular required (like a mini-prospectus) |
| Ongoing reporting | None for most Reg D offerings | Tier 2: Annual (1-K) and semi-annual (1-SA) reports required |
| State preemption | 506b/c: Federal preemption (no state blue sky) | Tier 1: State registration required; Tier 2: Federal preemption |
| Cost | Low — legal fees for PPM, Form D filing | Higher — audit requirement for Tier 2, offering circular legal fees |
| Time to close | Weeks (no SEC qualification needed) | 3–6 months (SEC qualification process) |
Who Needs Both?
- Companies that want to do a Reg A test-the-waters campaign while maintaining a Reg D fallback
- Issuers who closed a Reg D round and want to expand to non-accredited investors via Reg A
Key Differences Summarized
Reg D is faster and simpler — file Form D, no SEC review, close quickly. It limits you to accredited investors (Rule 506). Reg A+ allows non-accredited investors (great for consumer brands or community raises) but requires SEC qualification and ongoing reporting for Tier 2.
Frequently Asked Questions
Which is better for a startup raising a seed round?
Regulation D Rule 506(b) is the standard for seed rounds — no SEC review, fast to close, unlimited raise amount, familiar to institutional investors and angels. Reg A+ is rarely used for seed rounds.
Can I advertise a Reg D offering on social media?
Only under Rule 506(c) — general solicitation is allowed, but you can only sell to verified accredited investors. Rule 506(b) prohibits general solicitation.
Do I need an audit for Regulation A?
Tier 2 Regulation A requires audited financial statements. Tier 1 does not, but state securities laws may require audited financials for state registration.
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