What Is a 506(c) Offering and Why It Matters for Accredited Investors
506(c) offerings let sponsors publicly advertise private raises — but only to verified accredited investors. Here is what that means for your capital and your protections.
Percentage-based marketing fees quietly erode operator equity on every raise. Here is what the math actually looks like across a $5M deal — and why disciplined sponsors choose flat-fee instead.
Most sponsors negotiate hard on acquisition price, loan terms, and asset management fees. Then they hand 2–4% of their capital raise to a marketing partner without running the number. On a $5M raise, that decision costs more than most people realize — and it reshapes the equity waterfall in ways that compound across every subsequent deal.
This post breaks down the real cost difference between percentage-based and flat-fee marketing structures, using a $5M raise as the comparison baseline. The math is straightforward. The implications are not.
Percentage-based marketing arrangements are common in the capital raise world. The pitch is intuitive: the firm only earns when you raise, so incentives are aligned. In practice, the structure creates a different problem.
On a $5,000,000 raise, here is what a percentage fee looks like across common rate ranges:
| Fee Structure | Rate | Total Cost | Remaining Sponsor Equity Pool |
|---|---|---|---|
| Low-end percentage | 2% | $100,000 | $4,900,000 |
| Mid-range percentage | 3% | $150,000 | $4,850,000 |
| High-end percentage | 4% | $200,000 | $4,800,000 |
| Flat-fee marketing | Fixed | $15,000–$40,000 (typical) | $4,960,000–$4,985,000 |
The spread between a 3% percentage arrangement and a flat-fee engagement on a single raise is $110,000 to $135,000. That is not a rounding error. On a deal with a 7% preferred return and a 70/30 equity split, that gap directly reduces what LPs receive at distribution — or what the sponsor keeps at exit.
A single raise looks manageable. The pattern across a portfolio does not.
A sponsor running three raises over 24 months — $3M, $5M, and $8M — at a 3% percentage fee pays approximately $480,000 in marketing costs. A flat-fee arrangement across the same three raises, at $25,000 per engagement, totals $75,000. The difference — $405,000 — is equity that stays in the deal, gets distributed to LPs, or funds the next acquisition.
This is why operators who have closed more than two deals tend to restructure how they pay for marketing. The percentage model makes sense when the sponsor has no cash and no track record. Once the infrastructure exists, it becomes the most expensive line item in the raise.

Flat-fee marketing arrangements replace the percentage with a defined scope of services at a fixed cost. The sponsor pays for the infrastructure — the funnel, the materials, the investor outreach, the CRM — not for a cut of the capital that infrastructure helps raise.
A properly structured flat-fee capital raise marketing engagement includes the full stack:
The key structural difference: the marketing firm's fee does not scale with the raise size. A $5M raise and an $8M raise can cost the same to market — because the work is comparable. The percentage model prices against the outcome; the flat-fee model prices against the service.
Under Regulation D, Rule 506(c), sponsors can publicly advertise a raise — but only to verified accredited investors. That verification requirement creates a compliance layer that percentage-based firms sometimes route around by limiting their scope. When a firm earns more if the raise is larger, there is an incentive to move fast on investor qualification rather than rigorously.
A flat-fee firm has no financial incentive to cut corners on verification. The fee is fixed. Their incentive is to deliver the scope, maintain the relationship, and earn the next engagement. That structure is fundamentally more aligned with how a disciplined capital raise should operate.
Sophisticated LPs read the deal structure before they read the pro forma. When they see a percentage-based marketing fee baked into the offering memorandum — especially at 3% or above — it raises a specific question: does this sponsor understand cost discipline?
The answer matters because marketing spend is the most controllable line item in a raise. Unlike acquisition price, loan rate, or construction cost, marketing cost is entirely within the sponsor's control. A sponsor who accepts a high-percentage marketing arrangement signals one of two things: they needed the arrangement to get started, or they did not run the math.
Marketing fees are typically treated as an organizational expense and deducted before the equity waterfall is calculated. On a $5M raise with a $350,000 organizational expense budget, the difference between a 3% marketing fee ($150,000) and a flat-fee engagement ($30,000) is $120,000 in additional equity available for distribution.
In a standard 70/30 split with an 8% pref, that $120,000 flows to investors first — improving the LP yield by a measurable amount on a per-unit basis. That is the number that moves LP re-up decisions.
Selly's 94% LP re-up rate is not accidental. Operators who run tight cost structures — including how they pay for marketing — produce better net returns. Better net returns produce repeat investors.

Flat-fee marketing is not the right structure for every sponsor. There are specific situations where a percentage arrangement is the more rational choice.
A first-time syndicator with no track record, no investor list, and no existing funnel is a different risk profile than a seasoned operator. A percentage-based arrangement transfers financial risk to the marketing partner in exchange for a higher cost if the raise succeeds. For a sponsor who cannot afford the flat fee upfront, this may be the only viable path to market.
On very small raises — below $500,000 — the absolute dollar difference between fee structures narrows significantly. A 3% fee on a $400,000 raise is $12,000. A flat-fee engagement for the same scope might cost $20,000–$30,000. At that raise size, the percentage arrangement may be more economical.
If the sponsor does not have a CRM, a compliant materials library, or an existing investor relationship database, a percentage-based partner who builds all of that and takes a cut may be delivering more total value than the fee suggests. The calculation is not percentage versus flat — it is total cost versus total value delivered.
For operators running raises of $1M and above with an existing operational foundation, the flat-fee model almost always produces better net economics. This is the segment Selly works within — and why the firm's syndication marketing approach is structured around a flat service fee with no equity participation.
Operators running institutional-quality raises — the kind that attract family offices, repeat LPs, and high-net-worth investors who have seen multiple deal cycles — treat marketing as an operational cost, not a profit share. They budget for it, scope it, and hold the vendor accountable to deliverables rather than outcomes.
This mirrors how institutional asset managers handle placement agent fees, IR support, and investor communications. The cost is fixed. The scope is defined. The relationship is professional rather than speculative.
For context: Selly has raised $184M across 24 deals — average raise launch time is 14 days. That velocity is a function of having the infrastructure built and repeatable. Sponsors who use the platform are not paying for the build every time; they are paying for the deployment. That is the operational definition of flat-fee efficiency.
For sponsors earlier in their journey, reviewing how to build a repeatable capital raise from first deck to final close is worth the time before choosing a fee structure. And if you are an accredited investor evaluating how sponsors structure their costs, 5 questions accredited investors should ask before committing capital covers the fee transparency questions worth asking before any commitment.
The choice between percentage-based and flat-fee marketing is a math question before it is a vendor question. On a $5M raise, the difference is measurable in six figures. Across a portfolio, it reshapes what operators can offer LPs — and what LPs choose to reinvest.
Disciplined sponsors run the number before they sign the agreement. If you are structuring a raise of $1M or above and want to understand exactly what a flat-fee marketing engagement covers and costs, talk to the team — most raise marketing launches go live within 14 days.
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