A crypto tax preparer may receive more than income documents. The engagement can expose wallet addresses, exchange histories, transaction records, identity information, and a detailed picture of the taxpayer’s finances.
Choosing the right preparer therefore involves more than asking whether they “do crypto.” The taxpayer needs to understand how the preparer handles digital asset records, judgment calls, security, and final workpapers.
These five questions reveal far more than a polished sales page.
1. How do you identify transfers between my own wallets?
Moving an asset between accounts owned by the same taxpayer is different from selling it. Tax software may fail to match the two sides because of network fees, timing differences, or inconsistent platform records.
Ask the preparer how they verify ownership and match transfers. A credible answer should mention wallet addresses, transaction hashes, quantities, timestamps, and basis carried to the receiving account.
A vague answer such as “the software handles it” is not enough.
2. What do you do when cost basis is missing?
An exchange may show that an asset was sold without knowing where it was acquired. This often happens when the asset arrived from another platform or a self-custody wallet.
The IRS treats digital assets as property, and gain or loss generally depends on proceeds and adjusted basis. Missing basis should trigger research, not an automatic zero.
Ask what records the preparer will request and how unresolved items will be documented. The answer may involve prior exchange files, wallet records, blockchain data, or prior-year workpapers.
3. Who reviews DeFi, staking, and NFT activity?
DeFi transactions can be difficult to interpret from a CSV. A smart-contract interaction may represent a swap, loan, liquidity position, reward, bridge, or something else.
Ask who assigns the tax treatment and what experience that person has. If a junior processor performs the initial data work, find out who reviews the final classifications.
The preparer should be able to explain how the economic activity connects to the tax result.
4. How will you reconcile Form 1099-DA?
Form 1099-DA reports digital asset proceeds and, in some cases, basis. It is an important input, but it may not include the taxpayer’s complete history.
Ask whether the preparer compares the form with the exchange and wallet ledger. Find out what happens when proceeds, basis, or transaction counts do not match.
The IRS advises taxpayers to request a corrected form from the issuer when the information is wrong and to retain the original form, correction, and correspondence.
5. What records will I receive when the work is complete?
A taxpayer should receive more than a filed return and a total gain or loss.
Depending on the scope, the final file may include a reconciled ledger, transfer report, cost-basis detail, Form 8949 support, income classifications, and a list of assumptions.
Ask how long the preparer retains workpapers and whether the records can be exported in a usable format. This matters if the taxpayer changes firms, files an amendment, or receives an IRS notice.
Check credentials and representation rights
Anyone with a valid preparer tax identification number can prepare federal returns for compensation, but credentials and representation rights differ.
The IRS says CPAs, enrolled agents, and attorneys have unlimited representation rights before the agency. Taxpayers can also use the IRS public directory to check certain credentials and qualifications.
Credentials are not a substitute for digital asset experience. A preparer should have both the authority needed for the engagement and a process suited to crypto records.
Security belongs in the conversation
Ask how files are transferred and stored. Avoid sending sensitive exchange exports, identity documents, or wallet data through unprotected channels.
The preparer should explain access controls, document portals, retention, and who inside the firm can view the file. Never provide seed phrases or private keys. A legitimate tax preparer does not need them.
Watch for rehearsed answers
Several crypto tax preparer red flags appear when the questions become specific:
- Every issue is blamed on the software
- Missing basis is automatically treated as zero
- DeFi is described as “just trades”
- Broker forms are accepted without reconciliation
- No transaction-level workpapers are delivered
The preparer does not need an instant answer to every unusual transaction. In fact, a willingness to research an unclear issue can be a good sign. The problem is confidence without a review process.
The right preparer should welcome these questions
Crypto records are complex, but the engagement should be understandable.
The preparer should be able to describe how data is collected, how exceptions are reviewed, who makes tax decisions, and what the taxpayer receives at the end.
If those answers remain vague, keep looking.
This article is general educational information and is not tax or legal advice.
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