As cryptocurrency adoption has expanded, U.S. tax enforcement around digital assets has become more structured and more aggressive. According to Clinton Donnelly, an Enrolled Agent with Donnelly Tax Law who works with crypto tax filings, the Internal Revenue Service is not merely looking for perfect precision in every capital gains calculation. Instead, a central audit priority appears to be whether taxpayers can account for all inflows and outflows tied to their crypto activity, especially where cash movements, exchange transfers, and offshore platforms are involved.
Donnelly’s comments, shared in a media interview, offer a practical look at how crypto tax scrutiny may actually unfold. His view is that the IRS is less concerned with small reporting variations created by different software tools and more concerned with whether the broader financial picture makes sense. In other words, tax reporting is not just about calculating gains or losses; it is also about presenting a consistent and traceable record of asset movement.
The Crypto Question on Tax Forms Raised the Stakes
One of the most significant compliance developments, in Donnelly’s view, was the addition of a direct cryptocurrency question to U.S. tax forms. That yes-or-no prompt forced taxpayers to make an explicit statement about their digital asset activity. Because tax returns are signed under penalty of perjury, the presence of a direct question changes the legal and practical stakes. A taxpayer is no longer merely omitting details in a gray area; they are affirmatively answering a question that may later be compared with exchange records, prior filings, and other financial data.
Donnelly argues that this kind of disclosure can also create backward-looking risk. If a taxpayer reports crypto gains in one year, the IRS may infer that the individual acquired or traded digital assets in earlier years as well. That can place prior returns under greater scrutiny, especially if earlier filings did not appear to reflect that activity. In this sense, a current-year filing can become a roadmap for historical review.
For many market participants, this is one of the most difficult aspects of crypto tax compliance: digital asset investing often spans multiple years, multiple platforms, and changing recordkeeping habits. Once a taxpayer begins reporting more completely, inconsistencies in earlier years may become more visible.
An Audit Example: The Agency Wants the Full Trail
Donnelly said his firm had seen cryptocurrency audits among clients, and he shared an example involving a taxpayer audited over a 2017 return with just under $40,000 in crypto gains. According to his account, the client said they had never received prior IRS warning letters, yet the audit still occurred. That detail matters because it suggests that formal warning notices are not the only path to enforcement. Audits may arise through matching programs, data analysis, exchange reporting, or other compliance signals.
What Donnelly found notable was not simply that the taxpayer had crypto gains, but that the agency’s questioning appeared focused on whether the total accounting of assets added up. He emphasized that different crypto tax tools can generate somewhat different numbers, which is unsurprising given wallet transfers, cost basis assumptions, incomplete exchange exports, and timing differences. But those variations may be less important than whether the taxpayer can substantiate the overall movement of funds.
This distinction is especially relevant for active traders. Someone who traded frequently may receive forms such as 1099-K from exchanges showing large gross proceeds. Those figures may not reflect cost basis, meaning they can look much larger than actual taxable profit. Traders sometimes hesitate to file when these forms appear misleading. Donnelly’s practical view, however, is that fully reporting the gross proceeds and then supporting the underlying cost basis is generally safer than omitting the activity altogether.
AML Framing May Be Central to Crypto Tax Audits
A major theme in Donnelly’s comments is that crypto tax audits may increasingly be shaped by anti-money laundering (AML) concerns. In his reading, many of the questions regulators ask are designed less to test a taxpayer’s arithmetic and more to establish whether the person’s funds came from, and moved through, legitimate and traceable channels.
That framing matters because it changes the tone of enforcement. If the IRS presents crypto scrutiny as part of a broader effort to combat money laundering, the agency can justify deeper requests for records, exchange details, bank transfers, and wallet histories. It also helps explain why taxpayers may feel that crypto trading is being viewed through a lens of suspicion, even if the vast majority of activity has nothing to do with illicit finance.
Donnelly referenced the broader narrative that government attention often remains fixed on financial crime prevention. In practical terms, this means the taxpayer who can demonstrate consistent records, identifiable exchange accounts, and a coherent source-and-use-of-funds trail is likely in a stronger position than someone whose reporting is numerically plausible but poorly documented.
For the crypto industry, this is an important takeaway. Tax compliance is increasingly converging with transaction monitoring, identity verification, and cross-platform traceability. The boundary between tax reporting and financial surveillance is becoming less distinct.
Foreign Accounts and FBAR Exposure Could Be a Bigger Threat
Perhaps the most serious warning in Donnelly’s assessment concerns foreign account reporting. He highlighted the role of the FBAR, the Report of Foreign Bank and Financial Accounts, which may apply when a U.S. taxpayer’s foreign financial accounts exceed $10,000 in aggregate at any point during the calendar year. While FBAR is administered alongside tax enforcement, it is tied to the Bank Secrecy Act rather than the core tax code, making it a powerful compliance tool in cases involving offshore exposure.
Donnelly suggested that this is one reason AML concerns loom so large in crypto enforcement. The use of offshore exchanges and foreign-hosted accounts can place digital asset users within a reporting framework that carries significant penalties. According to his explanation, failure to file FBAR can trigger a $10,000 penalty, and in some circumstances penalties may stack across multiple unreported foreign accounts and across multiple years.
For crypto users who have traded on several overseas platforms, the implications can be severe. A taxpayer who discloses account activity without having previously filed the required foreign account reports may inadvertently reveal a history of noncompliance. That does not mean every offshore exchange account automatically creates an FBAR obligation in every circumstance, but it does mean the foreign account issue can quickly become one of the highest-risk areas in an audit.
From an enforcement perspective, foreign account reporting is especially potent because it brings in agencies and legal authorities associated with financial crime controls, not just tax administration. That raises both the compliance burden and the perceived seriousness of omissions.
Why Documentation Matters More Than Ever
The broader lesson from Donnelly’s comments is that crypto tax compliance in the United States is no longer just about generating a gains-and-losses spreadsheet at the end of the year. It increasingly requires a full recordkeeping framework: wallet histories, exchange exports, bank transfer logs, fiat on-ramps and off-ramps, cost basis support, and evidence that internal transfers are not taxable dispositions.
Taxpayers who used multiple exchanges, moved assets between personal wallets, or traded at high frequency face a more difficult burden. But the solution, according to the logic of the audit examples discussed, is not avoidance. It is reconstruction and disclosure. Even where software outputs differ slightly, a taxpayer with organized records and a defensible methodology is generally better positioned than someone with fragmented data and unexplained gaps.
Donnelly describes his objective as helping clients submit what he calls a “bulletproof” tax return. Regardless of terminology, the point is clear: the cost of mistakes can be high, and the crypto sector still suffers from a shortage of professionals who fully understand both digital asset mechanics and tax procedure.
A Maturing Enforcement Environment
Viewed more broadly, this discussion reflects a maturing U.S. enforcement environment for digital assets. The IRS appears to be moving beyond simple awareness campaigns and into more integrated compliance review. That includes direct tax form disclosures, exchange reporting, audit follow-up, and potential crossover with AML and foreign account regimes.
For taxpayers, the message is straightforward. If crypto activity has occurred across multiple years or multiple platforms, especially offshore ones, then compliance should be approached as a documentation exercise as much as a tax calculation exercise. The key question may no longer be only “What was my gain?” but also “Can I show where every asset came from, where it went, and whether every required report was filed?”
As regulators deepen their oversight of digital assets, that distinction could determine whether a tax filing is accepted as routine or examined as part of a broader compliance review. For market participants in the United States, the safest approach is likely thorough recordkeeping, timely disclosure, and professional guidance when foreign accounts or complex trading histories are involved.