Are CPA Letters Fast Enough for a 506(c) Raise?

The objection, stated fairly

If you have researched verification options for a 506(c) raise, you have run into the argument against CPA letters. It usually goes something like this:

That is a real objection and it deserves a real answer rather than a defensive one. So here is the honest version: most of that critique is accurate, and none of it is about whether a CPA letter satisfies Rule 506(c). Read the argument closely and every claim is about speed, consistency, and control in the supply chain. That is a provider problem. It is not a model problem, and the distinction determines what you should actually do about it.

What the objection gets right

Three things, and pretending otherwise would not help you.

Plenty of CPAs do decline. An accountant who prepares your return has no obligation to write a verification letter, and many will not. The reasons are ordinary: it is outside the engagement letter, it carries professional liability they did not price, and it is a favor that takes real review time. Investors are frequently surprised by this, and the surprise arrives at the worst possible moment. We wrote a whole separate guide on what to do when your CPA says no, because it happens often enough to need one.

Timing genuinely is unpredictable when you are relying on the investor's own accountant. A letter that takes two days in October can take three weeks in late March. Nobody in that chain has committed to a turnaround, because there is no engagement that includes one.

Format really does vary. Rule 506(c) requires written confirmation that the professional has taken reasonable steps within the prior three months. A letter that says only "I have prepared this client's returns and believe they are accredited" does not say that. Counsel reviewing the file at closing will notice, and the fix is another round trip with someone who was doing you a favor in the first place.

All three are true. All three describe the ad-hoc model, where the investor asks their own accountant and everyone hopes.

What it leaves out

What the objection does not say — and the omission is conspicuous once you notice it — is that a CPA letter is legally insufficient. It never claims that, because it cannot.

Rule 506(c)'s safe harbors give issuers a third-party confirmation route alongside the income and net-worth document routes. That route names four categories of professional: a registered broker-dealer, an SEC-registered investment adviser, a licensed attorney, and a certified public accountant. The CPA is not a workaround or a lesser substitute. The SEC put accountants in the rule by name, alongside broker-dealers, as a route the Commission designed for exactly this purpose.

The reason it is in there matters. The document routes require the issuer or its agent to collect and review the investor's tax returns, brokerage statements, and a consumer report showing liabilities. That is sensitive material, and most sponsors would rather not be holding it. Third-party confirmation moves that review to a licensed professional who carries the judgment and the liability, and hands you a letter instead of a filing cabinet.

So the argument reduces to something much narrower than it first appears: letters obtained ad hoc from whichever accountant an investor happens to use are slow and inconsistent. That is correct. It is also an argument about how you source the letter, not about whether the letter works.

The real question is about the provider

Once you separate the two, the useful question stops being "CPA letter or not" and becomes "what commitment does whoever produces this letter actually make to me?"

Every one of the objections above dissolves under a competent provider and survives under an incompetent one:

• CPAs decline — not applicable when the CPA is engaged for this work rather than asked as a favor. There is no one to decline.
• Turnaround is unpredictable — this is either a published commitment or it is not. Ask what the number is and what happens when it is missed.
• Format varies — a provider issuing hundreds of these letters uses one template, reviewed by securities counsel, containing the safe harbor language every time.
• You have no visibility — this is a dashboard question. Either you can see which investors have completed verification, or you are emailing people to ask.

Which is why the argument, pressed to its conclusion, is not really an argument against CPA letters. It is an argument against unmanaged ones.

What a reliable process looks like

Concretely, using our own numbers so you have something to measure other providers against rather than a set of adjectives.

An investor uploads their documents through a secure link. A licensed CPA reviews them and signs the letter, typically within 24 hours of receiving a complete submission. End to end — from the moment an investor starts to the moment the sponsor has the letter in hand — the realistic window is two to three business days, because most of the elapsed time is not the CPA. It is the investor finding their documents. That is worth being precise about: the delay in verification is usually on the investor's side of the process, and any provider quoting you a turnaround should be clear about which clock they are describing.

Where a deadline makes typical insufficient, a Priority 24-Hour add-on at $29 converts that number from a pattern into a commitment: the letter is issued within 24 business hours of a complete upload, or the add-on fee is refunded. That is the mechanic to look for generally — not a promise, but a promise with a consequence attached.

The letter itself uses one template every time, containing the written confirmation language the safe harbor calls for, with the review date on its face so the three-month window is legible to your counsel without a phone call. And on the sponsor side, a dashboard shows which investors have started, which have completed, and which are stuck — so the question "who still needs to verify" has an answer you can look up instead of an email thread.

None of that is exotic. It is what the objection assumes is absent, and the assumption is what does the work.

What to ask any verification provider

Including us. If a provider cannot answer these crisply, that is the finding.

When automated verification is the better fit

It would be dishonest to end without saying that CPA letters are not always the right answer. There are situations where automated verification — data aggregation against brokerage and payroll connections, with little or no human review — genuinely fits better.

Very large investor counts. Verifying four hundred investors on a crowdfunding-style raise is a volume problem, and per-letter human review is the wrong shape of solution.

Investors whose wealth is entirely in connectable accounts. Someone whose net worth is a brokerage account at a major custodian and a W-2 will sail through an automated flow in minutes.

Platforms verifying continuously. If verification is a recurring feature of your product rather than an event in a raise, an API belongs in your stack.

The pattern in the other direction is equally clear. Human review wins where the balance sheet is complicated: closely held business interests, real estate equity, self-directed IRAs, trusts and SPVs, K-1 income, investors whose wealth predates any account an aggregator can connect to. Automated systems tend to fail those investors quietly, and the failure surfaces as an investor who cannot complete verification and does not know why. In a raise, that investor calls you.

Most sponsor raises with fewer than a hundred investors and meaningful check sizes sit squarely in the second category. Which is, not coincidentally, the population the CPA-letter objection is usually aimed at.

The bottom line

The critique of CPA letters is a good critique of a bad process. Ad-hoc letters from whichever accountant an investor happens to use are slow, inconsistent, and outside your control, and if that is the version you were considering, the objection should change your mind.

What it should not do is push you away from a route the SEC wrote into the rule by name. Rule 506(c)'s third-party confirmation safe harbor lists CPAs alongside broker-dealers, investment advisers, and attorneys. The question worth spending your attention on is not whether a CPA letter is adequate. It is whether the provider standing behind it has committed to a turnaround, uses one reviewed format, shows you where every investor stands, and answers the phone when an investor does not fit the form.

Ask the nine questions. Ask them of us too.