IRS Digital Asset Enforcement: A 10-Year Timeline
CBAP (CIBA), GTP (SAIT)
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The IRS has made it clear: ignoring digital asset reporting obligations is no longer an option. Over the years, we have witnessed a surge in enforcement actions, new guidelines, and high-profile court cases as the IRS ramps up its efforts to ensure compliance in the digital asset space. In this timeline, we'll explore key moments in the escalation of IRS digital asset enforcement, detailing new staff appointments, significant letters, court cases, and legislative amendments that have transformed how the IRS approaches digital assets.
This piece was originally published in 2024 and updated in May 2026. It captures the US digital asset enforcement landscape as it stood at that time. Some developments described here have since evolved. For current guidance, see our comprehensive US Crypto Tax Guide.
Timeline of IRS Digital Asset Enforcement
2014: The IRS Issues Its First Guidance on Digital Asset Taxation
The journey began in 2014 when the IRS released its initial guidance on virtual currencies. This document classified cryptocurrencies as “property” for tax purposes, making digital asset disposals subject to capital gains taxes. While this was a major step, it was only the beginning of the enforcement efforts we see today.
2018: The Formation of the Virtual Currency Compliance Campaign
The IRS created the Virtual Currency Compliance Campaign in 2018, signaling the start of a dedicated effort to address digital asset reporting non-compliance. This campaign was part of a broader effort to educate taxpayers about their obligations and initiate more targeted enforcement actions.
2019: Warning Letters to Digital Asset Holders
In 2019, the IRS began sending out thousands of letters (Letter 6173, 6174, and 6174-A) to digital asset holders who they suspected were underreporting or not reporting digital-asset-related income. These letters served as a warning and a reminder that the IRS was closely monitoring digital asset transactions.
2020: Digital Asset Question Added to Form 1040
One of the most notable shifts happened in 2020 when the IRS added a question regarding virtual currencies directly to Form 1040. This move ensured that every taxpayer in the U.S. would need to explicitly state whether they had engaged in digital asset transactions, making it much harder to ignore the reporting requirements.
2021: Operation Hidden Treasure
In 2021, the IRS launched “Operation Hidden Treasure,” a joint effort between the IRS Criminal Investigation unit and the Fraud Enforcement Office to root out taxpayers who were deliberately concealing digital asset income. This operation demonstrated the IRS's commitment to pursuing digital-asset-related tax fraud.
6. 2022: Hiring of Specialized Agents
In response to increasing digital asset adoption, the IRS hired hundreds of new agents in 2022 with specialized knowledge of blockchain technology and digital asset transactions. The bolstering of staff was a strategic move to better understand and track digital asset activities, ensuring more effective enforcement.
2023: The Coinbase Court Order
The IRS also took a significant step by securing a court order against Coinbase, one of the largest digital asset exchanges. This order required Coinbase to turn over user data to the IRS, providing details on transactions and customer identities. This landmark action was a wake-up call for digital asset investors, highlighting the growing reach of the IRS into the world of digital assets.
2023: Infrastructure Bill Reporting Requirements
The passage of the 2021 Infrastructure Bill, with new reporting requirements effective from 2023, made it mandatory for digital asset brokers to report transactions to the IRS, similar to the reporting requirements for traditional financial institutions. This marked a crucial legislative change to further ensure transparency and compliance in the digital asset industry.
2024: Operation Token Mirrors
In 2024, the IRS launched ‘Operation Token Mirrors,’ a targeted enforcement effort focusing on individuals and entities involved in pump and dump schemes. This operation showcases the IRS's ability to trace digital asset transactions more effectively and ensure compliance through enhanced scrutiny.
The IRS's approach to digital asset enforcement has evolved significantly over the past decade. From early guidelines to the hiring of specialized agents, court orders, and mandatory reporting requirements, the agency is leaving no stone unturned to ensure compliance.
Official Sources
- IRS: Notice 2014-21: the 2014 guidance that classified cryptocurrency as property.
- IRS: Letters and Notices for Virtual Currency: the announcement behind the 6173 and 6174 compliance letters.
- IRS: Form 1040 Digital Assets question: the IRS reminder on answering the digital asset question and reporting the income.
- DOJ: Operation Token Mirrors charges: the Justice Department announcement of the 2024 charges.
- IRS: Digital Assets: the current central IRS page on digital asset reporting obligations.
Frequently Asked Questions
When did the IRS first say crypto is taxable?
In 2014, when it released its initial guidance on virtual currencies. That document classified cryptocurrencies as property for tax purposes, which made digital asset disposals subject to capital gains tax.
What were the 6173 and 6174 letters?
In 2019 the IRS sent thousands of letters, numbered 6173, 6174 and 6174-A, to digital asset holders it suspected of underreporting or not reporting crypto income. They served as a warning that the agency was monitoring digital asset activity.
What is Operation Hidden Treasure?
A 2021 effort between IRS Criminal Investigation and the Fraud Enforcement Office aimed at taxpayers deliberately concealing digital asset income.
How does the IRS get data about exchange users?
Through legal process and through mandatory reporting. In 2023 the IRS secured a court order requiring Coinbase to turn over user data including transaction details and customer identities, and reporting requirements from the 2021 Infrastructure Bill, effective from 2023, made digital asset brokers report transactions to the IRS.
Why does the Form 1040 digital asset question matter?
The IRS added it in 2020, so every taxpayer has to state whether they engaged in digital asset transactions during the year. It makes the reporting obligation explicit rather than something a filer can pass over.
What is Operation Token Mirrors?
A 2024 enforcement effort focused on individuals and entities involved in pump and dump schemes, which showed the agency tracing digital asset transactions more effectively.
Master the topic: How Is Crypto Taxed in the US? 2026 Rules & Rates
Chris Herbst is the founder of CountDeFi, a crypto tax specialist whose qualifications span investment management, financial analysis, mathematical statistics and computer science. He holds the Chartered Business Accountant in Practice (CBAP) designation with the Chartered Institute for Business Accountants (CIBA) and the General Tax Practitioner (GTP) designation with the South African Institute of Taxation (SAIT). His combined background in investments, accounting and tax, mathematical statistics and computer science underpins his work in complex crypto tax reporting. This article is for educational purposes only and does not constitute tax, legal or investment advice. Consult a qualified tax professional for guidance specific to your situation. View our Editorial Policy.
