Choosing a crypto CPA or attorney is a verification problem before it is a judgment call. Credentials are checkable in free public databases in about ten minutes, and doing that first removes most of the bad outcomes. What remains is narrower: whether this person has actually worked with digital-asset records, and whether you are buying preparation, representation, or privilege.
Part of our guide: Crypto Taxes.
The short version
- Anyone paid to prepare federal returns needs a PTIN. The IRS Directory of Federal Tax Return Preparers lists preparers holding a credential or a select qualification.
- Verify a CPA license with the state board, or through CPAverify. Verify an attorney through the state bar.
- Circular 230 governs practice before the IRS for attorneys, CPAs, enrolled agents, and other practitioners.
- Attorneys, CPAs, and enrolled agents have unlimited representation rights before the IRS. Other preparers do not.
- Ask crypto-specific questions: basis methodology, record reconstruction, staking income under Rev. Rul. 2023-14, Form 1099-DA reconciliation, and examination experience.
- Privilege is not symmetric. The practitioner privilege in section 7525 is narrow. Attorney-client privilege is broader.
Verify the credential before you book the call
Verification takes about ten minutes and is the highest-value part of the process. Three lookups cover it.
PTIN and the IRS directory. Anyone who prepares federal returns for compensation must hold a current preparer tax identification number. The IRS directory lists preparers who hold a PTIN together with a credential or a listed qualification. It does not include every PTIN holder, so an absence is a question to ask rather than a disqualification.
CPA license. CPAverify, operated through NASBA, aggregates license data from participating state boards. Not every board participates, so a blank result means go to the board directly. Check status and state, since a license can be active in one state and lapsed in another.
Bar admission. Attorney licensing is per state, and every bar publishes a lookup showing admission status and public discipline. Check the state where the work will happen.
Attorneys, CPAs, and enrolled agents hold unlimited rights to represent taxpayers before the IRS. Others hold limited rights or none. If an examination is realistic, that difference decides it.
What Circular 230 governs
Circular 230 governs practice before the IRS and reaches attorneys, CPAs, enrolled agents, and other practitioners who represent taxpayers. It sets duties, standards for written advice, diligence requirements, conflict-of-interest rules, and the conduct that gets a practitioner sanctioned or barred.
Two areas matter while you are still hiring. Contingent fees are restricted, with narrow exceptions, so a fee quoted as a share of your refund should end the conversation. And practitioners carry diligence obligations for what they submit, which is the formal reason nobody credible guarantees an outcome before seeing records.
The crypto questions that separate the two piles
Crypto changes the work at the record level rather than the doctrine level, so the useful questions are about records. Five sort candidates quickly.
How do you handle cost basis, and under what method? The answer should name a method, describe how it is applied consistently, and address what happens across multiple wallets and venues. Basis is the input every other number depends on, so a vague answer here predicts the engagement.
How do you reconstruct a year that was never recorded? Most crypto engagements start with incomplete history. A good answer involves chain data, exchange exports, a written methodology, and a note of what stays uncertain. A weak answer is an estimate with nothing behind it.
How do you treat staking rewards? Rev. Rul. 2023-14 addresses a cash-method taxpayer who stakes cryptocurrency native to a proof-of-stake blockchain, and provides that the fair market value of validation rewards is included in gross income in the year the taxpayer gains dominion and control over them. A preparer who totals a year of rewards at one year-end price is not applying that.
How will you reconcile Form 1099-DA? Broker reporting is phasing in, and the problem is the gap rather than the form. A broker knows what left its platform, not what you paid for an asset you self-custodied or transferred in. Ask who reconciles that, and what happens when the form and your records disagree.
Have you handled entity or trust filings, and an examination? Crypto held through an LLC or a trust produces filings a preparer used to individual returns may never have done. Examination experience is a separate skill, worth buying before you need it.
CPA, attorney, or both: the privilege question
The choice between a CPA and an attorney is usually about what could go wrong rather than what needs preparing. For return preparation and ongoing compliance, a CPA or enrolled agent with real digital-asset experience is the normal answer. The calculation changes when facts are uncertain, history is messy, or exposure is realistic.
Confidentiality is where the two differ most. Internal Revenue Code section 7525 gives a federally authorized tax practitioner a confidentiality privilege for tax advice, but it is narrow. It reaches noncriminal tax matters, does not extend to criminal matters, and does not protect return preparation, which is not advice. Attorney-client privilege is broader, which is why sensitive analysis is often scoped to counsel first.
Where both skill sets are needed, ask about a Kovel arrangement by name. Named for a 1961 federal appellate decision, it engages the accountant through the attorney so the accountant’s work supports the legal advice. It is not automatic, and whether it fits your facts is a question for the attorney. Ask early, because it has to exist before the work does.
What I actually see
The most common failure is a competent generalist doing crypto work for the first time on your return. Nothing about that is dishonest. The cost shows up as a basis methodology invented in March, applied inconsistently, and impossible to defend two years later.
The second is a specialist who turns out to be a software operator: a tax tool, a CSV import, and an output nobody reconciled against the chain. Ask what happens when the tool and the blockchain disagree.
The third is scope confusion. The client believed a conversation was protected and it was not, because it happened with a preparer during preparation. Nobody misled anyone. The question never came up.
The sequence that works: verify credentials, ask the five record questions, then decide scope. Bring counsel in before the analysis rather than after the notice.
Where this goes wrong
The engagement is bought on price, and specialization is assumed rather than checked.
The specific failures: no PTIN, discovered after filing. A CPA license active somewhere other than where the work happened. A fee quoted as a percentage of the refund. A preparer who will not sign the return. Prior-year positions adopted without review. Sensitive facts disclosed under an assumption of privilege that never existed. And tool output filed without anyone reconciling it against the records.
The decision rule
- Verify the credential first, using the IRS directory, CPAverify or the state board, and the state bar.
- Confirm representation rights, and ask what they are if the answer is anything other than attorney, CPA, or enrolled agent.
- Ask the five record questions, and treat a vague basis answer as disqualifying.
- Decide scope before disclosing facts, particularly where history is incomplete or exposure is possible.
- Get the engagement in writing, including who signs the return and what is out of scope.
- Walk away from guarantees, contingent fees, and unsigned returns. None of those are negotiating positions.
The right professional is the one who tells you what your records do not yet support. Anyone confident before seeing them is selling comfort rather than work.
Where this sits
Who prepares the work sits underneath every position they take. How crypto capital gains are taxed is the doctrine your records have to support. FBAR and FATCA reporting is where the questions turn jurisdictional. Token sale tax planning is where sequence matters more than arithmetic. What a fiduciary advisor is answers the parallel question on the investment side. All of it sits inside Crypto Taxes.
Choosing the professional is the earliest decision on that list, and it determines how well every later one gets documented.
Sources
- IRS, Directory of Federal Tax Return Preparers
- IRS, Choosing a Tax Professional
- NASBA, CPAverify
- IRS, Circular 230 for tax professionals
- IRS, Revenue Ruling 2023-14, staking rewards
- IRS, Digital assets
Related
- How Are Crypto Airdrops and Forks Taxed?
- Fee-Only Crypto Financial Advisor
- Moving States With Crypto: Residency and Tax
- Strategic Exit Planning for Your Crypto Holdings
- How Is Inherited Crypto Taxed?
Last updated: 5 August 2026.
This article is general education, not legal or tax advice, and it is not a referral to or endorsement of any professional. Credential databases can lag, and privilege questions depend on your specific facts. Talk to a qualified attorney or CPA about your own situation.
