A colleague offers you a referral fee for sending a client their way. Do you have to tell the client? For lawyers and CPAs, the honest answer is almost always yes, and treating disclosure as optional is one of the fastest ways to turn a routine introduction into a conduct complaint.
This guide walks through a practical decision process: when disclosure is legally required, when it’s simply the safer choice, what disclosure actually needs to say, and how to document it so it holds up if a bar or state board ever asks.
Key Takeaways
- Written disclosure plus documented, informed client consent is the standard both AICPA Section 1.520.001 and ABA Model Rule 1.5(e) point toward, even though the two rules govern different transactions.
- CPAs must disclose referral fees they pay or receive under the AICPA Code, regardless of which side of the deal they’re on.
- Lawyers splitting a fee under Rule 1.5(e) need the client’s informed consent in writing, not just a verbal heads-up.
- A simple test: if the client would be upset to learn about the fee after the fact, it needed disclosure before the referral happened.
- Disclosure protects the professional relationship even in situations where no specific rule technically requires it.
Referral fees for lawyers, tax advisors, and consultants: what’s actually legal
Step 1: Is Disclosure Legally Required in Your Situation?
Disclosure is legally required for CPAs under the AICPA Code of Professional Conduct, Section 1.520.001, and required in a different form for lawyers splitting fees under ABA Model Rule 1.5(e). Start by identifying which rule actually governs your situation.
The AICPA rule is broad and direct: a member who pays or receives a referral fee for recommending a service to a client must disclose that fact to the client, full stop. It doesn’t matter whether the CPA is the one giving the fee or the one getting it. It doesn’t matter whether the referred service is accounting-related or not. The obligation triggers the moment money is tied to the recommendation.
Rule 1.5(e) works differently because it isn’t really about a referral fee at all. It governs how two lawyers divide one client’s legal fee when both are doing work or sharing responsibility for the matter. In that scenario, disclosure isn’t just recommended, informed written consent naming both lawyers and their respective shares is a hard requirement before the split is valid.
A pattern we’ve noticed across both professions: people often ask “is disclosure required?” as if it’s a single yes-or-no question, when it’s really two separate questions layered together. First, does a specific rule mandate disclosure for this transaction type? Second, even if the answer is technically ambiguous, would skipping disclosure create a conflict-of-interest problem anyway? Most professionals only check the first question and skip the second, which is where the real risk tends to hide.
If neither the AICPA Code nor an ABA-style fee-splitting rule applies directly, like when a non-licensed consultant refers a client to a tax specialist, there’s often no single named rule mandating disclosure. That doesn’t mean disclosure is optional in any practical sense. It means the decision shifts from “what does the rule say” to “what does professional judgment say,” which is the harder and more important question this guide walks through next.
Can you legally accept a referral fee for sending a client to a lawyer
Citation Capsule
The AICPA Code of Professional Conduct, Section 1.520.001, requires a CPA who pays or receives a referral fee for recommending a service to disclose that fact to the client, regardless of which side of the transaction the CPA occupies, according to the American Institute of Certified Public Accountants.
When Is Disclosure the Safer Choice, Even If It’s Not Explicitly Required?
Disclosure is the safer default whenever an undisclosed fee could look like it influenced your professional judgment, even in situations where no single rule names the exact transaction. An unquantified but consistent pattern across professional conduct rules treats hidden financial incentives as a conflict-of-interest red flag first and a technical rule violation second.
Think about how an undisclosed fee looks from the outside, not from the inside. A client who later discovers a lawyer or CPA received payment for the introduction, and wasn’t told, tends to assume the worst: that the recommendation was about the fee, not the fit. That assumption sticks even when it’s factually wrong, because the silence itself reads as concealment.
We’ve heard from consultants and advisors who assumed disclosure only mattered for licensed professionals bound by a bar rule or the AICPA Code. In practice, we’ve found that the client relationship damage from a discovered, undisclosed fee doesn’t care whether a specific rule technically applied. A client who feels misled is a client who leaves, refers no one, and sometimes leaves a public review describing exactly what happened. The reputational cost tends to outweigh whatever the referral fee itself was worth.
There’s also a simpler, more durable reason to default to disclosure: it removes the guesswork. Rather than analyzing whether your specific arrangement falls inside or outside a named rule’s scope, disclosing consistently means you never have to make that judgment call under pressure, after the fact, when a client is already upset.
Referral fee vs. fee-splitting for lawyers: what’s the real difference
The Surprise Test: A Practical Shortcut
A quick gut-check works well when the rules are ambiguous: would the client be surprised, or upset, to learn about the fee after the referral already happened? If the honest answer is yes, that’s a signal disclosure should have happened before, not after, the introduction was made.
This test isn’t a legal standard on its own, but it tracks closely with how both the AICPA Code and ABA fee rules are actually enforced in practice. Regulators and disciplinary bodies tend to ask a version of the same question: was the client kept in the dark about something that could have affected their decision?
Step 2: What Exactly Does Disclosure Need to Say?
Effective disclosure names the parties involved, states plainly that a fee was or will be paid for the referral, and clarifies whether that fee changes the client’s total cost. Under ABA Model Rule 1.5(e), fee-split disclosure additionally must specify each lawyer’s exact share.
A vague reference buried in a lengthy engagement letter, something like “professional may receive compensation from third parties in connection with this engagement,” generally doesn’t satisfy either the AICPA standard or Rule 1.5(e)’s informed-consent requirement. The disclosure needs to be specific enough that the client actually understands what happened, not just technically present somewhere in the paperwork.
We’ve reviewed referral disclosures that technically existed but functionally didn’t communicate anything. One read: “Advisor may have business relationships with referred parties.” That sentence checks a box, but it tells the client nothing about who’s being paid, how much, or by whom. A client reading that has no real way to evaluate whether the recommendation was influenced by money. Genuine disclosure requires naming names and, where required, naming amounts.
For a fee split under Rule 1.5(e) specifically, the written consent needs to identify each lawyer involved, state the basis for the division (proportional work or joint responsibility), and specify the share each lawyer will receive. A general “co-counsel” clause without these specifics generally does not meet the rule’s requirements in most jurisdictions.
How to legally accept a referral fee for sending a client to a lawyer
Does the Client Need to Know the Exact Dollar Amount?
It depends on which rule applies, but including the amount is the more cautious practice either way. Rule 1.5(e) explicitly requires the client to agree to “the share each lawyer will receive,” which functionally means a dollar figure or percentage. The AICPA Code requires disclosure of the fee’s existence but doesn’t universally mandate the exact figure in every state.
Because state boards of accountancy sometimes layer stricter requirements on top of the AICPA Code, the safer approach for CPAs is to include the amount or a clear percentage anyway, rather than relying on the more general national standard. When in doubt, more specificity in the disclosure protects the professional more than it exposes them.
Step 3: When Should You Disclose, Before or After the Referral?
Disclosure needs to happen before or at the time of the referral, not after the client has already engaged the referred professional. The AICPA Code frames disclosure as a condition of the recommendation itself, meaning the client should know about the fee while they still have a real choice to make.
Retroactive disclosure, telling the client about a referral fee weeks or months after they’ve already hired the referred professional, doesn’t serve the same purpose. By that point, the client’s decision is already made, and the disclosure functions more as a confession than as informed consent. It might technically satisfy a narrow reading of some rules, but it defeats the purpose the rule was written to serve.
Across the referral relationships we’ve observed on the MezAgent platform between professionals and cross-border specialists, the arrangements that disclose at the point of referral, rather than relying on a general engagement-letter clause signed earlier, report far fewer client questions and pushback later in the engagement. This is an internal, non-representative observation from our own referral tracking data, not a formal study, but the pattern has held up consistently enough that we recommend point-of-referral disclosure as the default practice for the professionals in our network.
The practical version of this looks simple: when you make the referral, say (or write) something like, “I want to let you know that I receive a referral fee if you engage this firm.” One sentence, delivered at the moment of the recommendation, does more compliance work than a paragraph buried in a document the client signed months earlier and never reread.
How tax consultants get paid for referring clients to specialists
Step 4: How Should You Document the Disclosure?
Written disclosure, kept on file, is the standard that protects a professional if a state board, bar authority, or peer reviewer ever asks for proof. A verbal mention, even if it genuinely happened, leaves no record and depends entirely on memory if a dispute arises later.
The simplest reliable method is an email or a short written note sent to the client at the time of referral, stating that a fee was paid or received, naming the parties, and noting whether it affects the client’s cost. That single message, saved in the client file, generally satisfies the AICPA standard and supports the written-consent requirement under Rule 1.5(e) when a fee split is involved.
Something we’ve noticed repeatedly: the firms that handle this well don’t treat disclosure as a one-off form to sign and forget. They treat it as a small, repeatable step built into the referral process itself, the same way a firm might build a conflict check into every new engagement. The professionals who skip this step tend to still believe, honestly, that they disclosed something. What they usually mean is that they intended to mention it, or mentioned it once, verbally, months before the client would have needed to recall it.
For fee splits specifically, the documentation bar is higher. Rule 1.5(e) requires the client’s informed consent, confirmed in writing, that names each lawyer and their respective share of the fee. A signature on a general engagement letter executed before the referral even existed doesn’t retroactively cover a specific fee-split arrangement that comes up later in the matter.
4 ways legal and tax firms track referral sources for compliance audits
Disclosure Requirements by Profession: A Quick Comparison
The table below lines up disclosure expectations across professions, since the biggest source of confusion is assuming one profession’s standard applies to another. Always confirm the specific rule in your jurisdiction before finalizing any referral arrangement.
| Profession | Governing Rule | Disclosure Required? | Written Form Required? |
|---|---|---|---|
| CPAs | AICPA Code of Professional Conduct, Section 1.520.001 | Yes, for any referral fee paid or received | Not always mandated by name, but strongly recommended |
| Lawyers (fee split) | ABA Model Rule 1.5(e) | Yes, informed consent required | Yes, confirmed in writing |
| Lawyers (reciprocal referral) | ABA Model Rule 7.2(b) | Yes, client must be informed of the arrangement | Recommended, not universally mandated |
| Tax Practitioners (Circular 230) | IRS Circular 230 | Not explicitly mandated, tied to conflict-of-interest duties | Recommended as best practice |
| Non-Licensed Consultants | No uniform professional code | Not legally mandated in most cases | Recommended for trust and paper trail |
Referral fee vs. fee-splitting for lawyers: what’s the real difference
What If You’re Not Sure Which Rule Applies to You?
Uncertainty about which rule governs your situation is common, especially for professionals who wear more than one hat or refer across licensing lines, and the practical fix is to default to the stricter standard rather than guess in the direction of less disclosure. Treating the most demanding applicable rule as your floor avoids the risk of under-disclosing.
This comes up constantly in cross-border referral work. A US-licensed CPA who also does informal relocation consulting, for example, might reasonably wonder whether a given referral fee falls under the AICPA Code, general business practice, or something else entirely. Rather than resolving that ambiguity in favor of skipping disclosure, the safer path treats the CPA-specific rule as binding for that person’s entire referral practice, licensed work or not.
In our experience tracking referral relationships that span professions and borders, the professionals who get into trouble aren’t usually the ones who misjudge a genuinely ambiguous case. They’re the ones who correctly identify the ambiguity and then quietly resolve it in the direction that lets them skip disclosure, because that’s the more convenient outcome. Ambiguity is not the same thing as permission, and treating it that way is where the real exposure tends to start.
Can a freelance consultant refer a client to a tax specialist for commission
Does Disclosing a Referral Fee Actually Hurt Client Trust?
Disclosing a referral fee rarely damages client trust on its own; what damages trust is a client discovering the fee later, on their own, without ever having been told. In our experience, most clients respond neutrally, even positively, to a professional who volunteers this information upfront rather than waiting to be asked.
Clients generally understand that professionals maintain networks and that introductions have value. What clients don’t tolerate well is the feeling of having been managed rather than informed. A referral fee disclosed plainly, alongside a genuine explanation of why the referred professional is a good fit, tends to read as transparency. The same fee, discovered after the fact, reads as concealment, even if the underlying recommendation was sound.
We’ve talked with advisors who worried that mentioning a referral fee would make the client second-guess the recommendation itself. What we’ve generally heard back is closer to the opposite: clients who are told upfront tend to ask a couple of clarifying questions and move on, while clients who find out later tend to question everything else the professional has ever told them. The disclosure conversation is a small, brief moment. The alternative, a client feeling misled, tends to color the entire relationship going forward.
The transparency also cuts the other way for the professional. A clear disclosure habit is easier to maintain consistently than a selective one, and consistency is what actually builds referral fee transparency into client trust over time, rather than treating each referral as its own judgment call under pressure.
What disclosure do law firms owe a client who was referred for a fee
Citation Capsule
Fee-splitting between lawyers under ABA Model Rule 1.5(e) requires the client’s informed consent, confirmed in writing, naming each lawyer and their respective share, while the AICPA Code of Professional Conduct, Section 1.520.001, requires CPAs to disclose any referral fee paid or received in connection with a client recommendation.
Key Takeaways: A Simple Framework for the Disclosure Decision
When in doubt, disclose. Identify which rule governs your profession and transaction type first, whether that’s the AICPA Code, ABA Model Rule 1.5(e), or a looser standard for non-licensed consultants, and treat the strictest applicable standard as your floor rather than searching for a technical exception.
Write the disclosure down, deliver it at the point of referral rather than after the fact, and name the parties, the fee, and its effect on the client’s total cost. That combination, written disclosure plus documented consent, is the consistent thread across both CPA and attorney referral-fee rules, even though the two professions are governed by entirely different regulatory bodies.
For professionals managing referral relationships across multiple countries and professions, building this into a repeatable process, rather than a case-by-case judgment call, is what keeps referral compliance defensible if a client, a bar, or a state board ever asks for the record.
Referral fees for lawyers, tax advisors, and consultants: what’s actually legal
Frequently Asked Questions
Do I always have to disclose a referral fee to my client?
CPAs must disclose any referral fee paid or received under the AICPA Code, Section 1.520.001. Lawyers splitting a fee need written client consent under Rule 1.5(e). Even outside those specific rules, disclosure is the safer default whenever an undisclosed fee could look like it influenced your recommendation.
What happens if I don’t disclose a referral fee and the client finds out later?
An undisclosed referral fee can trigger professional conduct violations for CPAs and lawyers, and it can damage the client relationship regardless of any regulatory consequence. Clients who discover a hidden fee often question the recommendation retroactively, even when the underlying advice was sound.
Does the disclosure need to state the exact dollar amount of the fee?
For lawyer fee splits under Rule 1.5(e), yes, the client must agree to each lawyer’s specific share. For CPAs, the AICPA Code requires disclosure of the fee’s existence, and including the amount is the more cautious practice given that state boards sometimes require it.
Is a verbal disclosure enough, or does it need to be in writing?
Written disclosure is the safer standard, since it creates a record if a bar, state board, or peer reviewer asks for proof later. Rule 1.5(e) explicitly requires written, informed consent for fee splits, and written documentation is best practice under the AICPA Code as well.
Can I disclose a referral fee after the client has already engaged the referred professional?
Disclosure should happen before or at the time of the referral, not after the client has already committed. Retroactive disclosure doesn’t give the client a real chance to weigh the information, and it functions more like a confession than informed consent.
Legal and Tax Disclaimer
This article is educational content only and does not constitute legal advice, tax advice, or a substitute for consultation with a licensed attorney, CPA, or tax professional. Rules governing referral fees, fee-splitting, and disclosure vary by state, country, and licensing body, and they change over time. MezAgent is a referral-tracking platform, not a law firm or accounting firm, and does not provide legal or tax advice. Before entering into any referral fee, fee-splitting, or referral-disclosure arrangement, consult your state bar, state board of accountancy, or a licensed attorney or CPA in the relevant jurisdiction to confirm current rules.
Sources
- American Institute of Certified Public Accountants, “AICPA Code of Professional Conduct,” Section 1.520.001, Referral Fees or Commissions. Retrieved July 2026. https://www.aicpa-cima.com/resources/download/aicpa-code-of-professional-conduct
- American Bar Association, “Rule 1.5: Fees,” Model Rules of Professional Conduct. Retrieved July 2026. https://www.americanbar.org/groups/professional_responsibility/publications/model_rules_of_professional_conduct/rule_1_5_fees/
- American Bar Association, “Rule 7.2: Advertising,” Model Rules of Professional Conduct. Retrieved July 2026. https://www.americanbar.org/groups/professional_responsibility/publications/model_rules_of_professional_conduct/rule_7_2_advertising/
- Internal Revenue Service, “Circular 230 Tax Professionals.” Retrieved July 2026. https://www.irs.gov/tax-professionals/circular-230-tax-professionals
