Regulation D Rule 506(c) is the provision that changed how private securities offerings reach accredited investors. Before its enactment under the JOBS Act in 2013, issuers relying on Reg D had to avoid any form of general solicitation — no public marketing, no open website listings, no broadcast outreach. 506(c) removed that restriction, but attached one hard condition: every purchaser must be a verified accredited investor. Not self-certified. Verified.
For tokenized private credit structures, this distinction matters more than it might seem. The entire investor acquisition funnel changes when you can openly describe the opportunity — but the compliance obligation on the back end becomes proportionally heavier.
What 506(c) Actually Permits
Under Rule 506(c), an issuer may use general solicitation and general advertising to market a private placement. That means public websites describing the offering, social media posts referencing the deal terms, and outbound email campaigns to prospective investors — all permissible as long as no sales to non-accredited investors occur.
The accredited investor standard, as of 2020, covers individuals with net worth exceeding $1 million excluding primary residence, or with income exceeding $200,000 annually ($300,000 joint) in each of the two prior years. It also now includes holders of certain FINRA licenses (Series 7, Series 65, Series 82) and certain "knowledgeable employees" of private funds.
The verification burden falls entirely on the issuer. Self-certification — the checkbox approach used under 506(b) — is explicitly insufficient for 506(c). Issuers must take "reasonable steps" to verify, which the SEC has indicated includes reviewing tax returns, W-2s, third-party letters from attorneys or CPAs, or using a qualified third-party verification service.
The difference between 506(b) and 506(c) is not just about marketing reach — it's about who bears the verification burden. Under 506(c), that burden sits unambiguously with the issuer, and documentation requirements are specific enough that a single compliance gap can void the exemption entirely.
How ERC-3643 Maps to 506(c) Requirements
The ERC-3643 token standard was designed specifically for permissioned security tokens — instruments where transfer eligibility is enforced at the contract layer rather than through off-chain manual review. This architecture maps directly to the 506(c) verification obligation.
Under ERC-3643, each wallet address that holds tokens is associated with an on-chain identity record maintained by a trusted claims issuer. Before a wallet can receive a token transfer, the smart contract checks whether that wallet has a valid, unexpired compliance claim attached. The claims issuer role — which in a 506(c) context would be fulfilled by the tokenization platform's compliance layer — attaches a signed attestation confirming accredited investor status to each whitelisted address.
This means the smart contract itself enforces the 506(c) verification requirement at settlement. No transfer can occur to an address that lacks a valid accreditation attestation. The on-chain record of that attestation — including the verification method, issuer identity, and timestamp — is permanently available for regulatory examination.
From a documentation standpoint, this is meaningfully stronger than paper-based verification processes. The audit trail is not reconstructed from email chains and PDF folders after the fact — it's written to the chain at the moment the investor is whitelisted.
The Ongoing Monitoring Requirement
506(c) compliance doesn't end at initial verification. Accredited investor status can lapse. An investor who qualified on net worth at the time of initial subscription may fall below the threshold at a later date, particularly in market downturns. For a traditional cap table, this creates a persistent exposure: the issuer rarely re-verifies investor status at each secondary transaction.
For tokenized instruments under ERC-3643, ongoing compliance status is structurally different. Claims on investor identities can be configured with expiration dates. An accreditation attestation issued at time of initial KYC might expire in 12 months, triggering a re-verification cycle before the next trading window opens. If re-verification fails or is not completed, the wallet's compliance claim expires and transfers are automatically blocked at the contract level.
We've seen this dynamic come up repeatedly in institutional due diligence conversations. Compliance teams at fund administrators want to know that compliance status is maintained as a running state, not just a gate at entry. The on-chain expiration model answers that question precisely.
Filing Requirements and Form D
Regardless of which Reg D rule is used, issuers must file a Form D with the SEC within 15 days after the first sale. For 506(c) offerings, that filing must indicate general solicitation was used. Some states impose additional notice filing requirements under state blue sky laws, though most have adopted NSMIA preemption for covered securities under Reg D.
Tokenization platforms that handle the issuance workflow end to end — including compliance orchestration — are well-positioned to generate the documentation needed for Form D preparation. The offering date, first sale date, total offering amount, and investor count are all data points captured in the cap table record, which in a tokenized structure is the on-chain ledger.
One important note: the $5 million cap under Rule 504 does not apply to 506(c), which has no cap on offering size. This makes 506(c) the operative framework for mid-market private credit instruments in the $10M–$150M range that Capkindle serves.
Practical Considerations for Tokenized 506(c) Structures
| Requirement | Traditional Process | Tokenized (ERC-3643) Process |
|---|---|---|
| Accredited investor verification | Manual document review, third-party letters | Programmatic KYC via compliance orchestration, on-chain attestation |
| Verification record | PDF folder, email archive | Signed on-chain claim, timestamped |
| Transfer enforcement | Transfer agent manual gate | Smart contract checks eligibility at settlement |
| Re-verification on status lapse | Ad hoc, often not performed | Claim expiration triggers re-verification workflow |
| Cap table accuracy | Reconciled periodically | Real-time, authoritative on-chain record |
The practical implication is that the compliance infrastructure required to operate a 506(c) offering responsibly — verification documentation, transfer restriction enforcement, ongoing monitoring — is exactly the infrastructure that permissioned security token standards were built to provide. The regulatory requirement and the technical architecture are aligned in a way that most legacy issuance tooling never achieved.
What This Means for Mid-Market Credit Issuers
For a credit fund manager issuing a $30M term loan participation or a trade finance facility, 506(c) offers distribution reach that was previously unavailable without a placement agent. The ability to publicly describe the offering — through a dedicated investor-facing portal, through outreach to LP networks, through industry conferences — expands the addressable investor pool without requiring a broker-dealer intermediary.
The trade-off is that every investor interaction that leads to a subscription must be backed by documented verification. At scale, that creates a KYC throughput problem: if a 506(c) campaign generates 40 investor inquiries in two weeks, the traditional model of manual document collection and review creates a bottleneck that undermines the distribution advantage.
Automated KYC orchestration resolves this. When verification runs programmatically — routing identity documents through Persona, checking OFAC and applicable sanctions databases in parallel, and attaching attestations to whitelisted addresses — the throughput constraint disappears. Issuers gain the distribution reach of 506(c) without the operational overhead that made it impractical at mid-market deal sizes.
The compliance infrastructure is no longer an argument against general solicitation. It's an argument for it.
