Ethereum & Altcoin Capital Gains Tax Statistics for 2026

As 2026 arrives, the tax treatment of Ethereum and altcoins has moved from the margins of regulatory attention to the center of enforcement action worldwide. Form 1099-DA is now live for US transactions conducted in 2025, broker cost-basis reporting takes effect for covered assets acquired from January 1, 2026, and the OECD Crypto-Asset Reporting Framework (CARF) has entered force across EU member states and several additional jurisdictions as of January 1, 2026. For investors who accumulated gains across altcoin cycles, staked ETH, or swapped tokens on decentralized platforms, the compliance landscape is no longer theoretical.

At KoinX, we work with investors and tax professionals navigating automated crypto tax reporting across these exact asset classes, and the data compiled in this article reflects precisely why a structured, jurisdiction-aware approach to capital gains tracking has become essential for any participant holding Ethereum or altcoin positions.

This article compiles verified statistics from government tax authorities, blockchain analytics firms, international policy bodies, exchange financial disclosures, and professional services research into one reference-grade resource. It is organized into thematic sections covering trading volume data, gain and loss distribution patterns, broker and exchange reporting developments, enforcement activity, and cross-jurisdictional compliance frameworks, with source URLs attached to every data point.

Scope and Methodology

This article draws exclusively on primary sources that produced the underlying data themselves. Eligible sources include government tax authorities (IRS, HMRC, EU Commission, OECD, FATF), blockchain analytics firms publishing original on-chain research (Chainalysis, TRM Labs), academic and policy institutions (IMF, BIS, CRS report libraries), exchange financial disclosures filed with regulators (Coinbase 10-K with the SEC), and major professional services firms publishing proprietary crypto tax research (PwC Global Crypto Tax Report).

All sources were required to disclose methodology, sample size, or data collection process. Sources that aggregated data from elsewhere without original research, including blogs, news outlets, and third-party aggregators, were excluded regardless of apparent authority. Every source URL points directly to the originating document, dataset, report, or filing rather than to a homepage or index page.

To enforce recency, only data published within the last two years was used. Where an older finding has no more recent equivalent, the original publication year is flagged explicitly in the bullet. Geographic scope is global, covering the United States, United Kingdom, European Union, and multilateral frameworks. All statistics are presented atomically, one data point per bullet, with no cross-source synthesis, inference, or interpolation. Material limitations include the absence of comprehensive altcoin-specific capital gains distribution data from most tax authorities, which do not yet disaggregate crypto tax returns by asset type.

Ethereum and Altcoin Capital Gains at a Glance: 2026 Statistics

• Ethereum trading volume on Coinbase totaled $139 billion in fiscal year 2024, recovering modestly from $94 billion in 2023 but remaining well below the $208 billion recorded in 2022, based on a 2025 10-K annual report by Coinbase Global Inc. filed with the SEC.
• Ethereum accounted for 12% of Coinbase’s total trading volume in fiscal year 2024, down from 20% in 2023 and 25% in 2022, based on a 2025 10-K annual report by Coinbase Global Inc. filed with the SEC.
• Spot Ethereum ETFs approved by the SEC on July 22, 2024 accumulated $7.5 billion in net inflows through their first year of trading, based on a 2025 report by CoinShares referenced in ETF.com.
• In fiscal year 2025 (October 2024 to September 2025), IRS Criminal Investigation identified $10.59 billion in total financial crimes, a 15.7% increase from fiscal year 2024, based on the 2025 IRS-CI Annual Report published by the Internal Revenue Service.
• From fiscal year 2018 to fiscal year 2023, IRS Criminal Investigation initiated 390 cases involving digital assets and recommended 224 cases for prosecution, based on a 2025 Congressional Research Service report.
• As of April 2025, 75% of jurisdictions assessed in FATF mutual evaluations since 2019 were only partially or not compliant with Recommendation 15 on virtual assets, a figure that has shown no improvement since 2023, based on the 2025 FATF Targeted Update on Virtual Assets and VASPs.
• 67 jurisdictions had committed to implementing the OECD Crypto-Asset Reporting Framework (CARF) as of November 2025, with the EU’s 27 member states required to apply DAC8 provisions from January 1, 2026, based on the 2025 OECD CARF Monitoring and Implementation Update.
• Illicit cryptocurrency addresses received at least $154 billion in 2025, a 162% increase year-over-year primarily driven by a 694% increase in value received by sanctioned entities, based on the 2026 Crypto Crime Report introduction by Chainalysis.
• The US crypto tax gap is estimated at approximately $50 billion per year, with the Joint Committee on Taxation projecting that broker digital asset reporting rules would generate $1.5 billion in additional tax revenue in 2024 alone and nearly $28 billion over 8 years, based on a 2023 letter by US Senators Warren, Sanders, Casey, and Blumenthal to Treasury and the IRS.
• HMRC’s CARF implementation is estimated to raise up to £315 million in unpaid tax by April 2030, with annual compliance costs for the approximately 50 in-scope UK crypto-asset service providers totaling £800,000, based on a 2025 UK government tax information and impact note.

Ethereum and Altcoin Trading Volume Statistics

• Coinbase’s total annual trading volume in fiscal year 2024 was $1,162 billion, of which Ethereum constituted $139 billion, based on the 2025 Coinbase Global Inc. 10-K filing with the SEC.
• Ethereum’s share of Coinbase trading volume declined from 25% in 2022 to 20% in 2023 and further to 12% in fiscal year 2024, while other altcoins collectively increased their combined share, based on the 2025 Coinbase Global Inc. 10-K filing with the SEC.
• In Q2 2025, Bitcoin accounted for 34% of Coinbase trading volume, Ethereum held 12%, and XRP contributed approximately 13%, based on a 2025 Coinbase investor shareholder letter filed as a Form 8-K with the SEC.
• Ethereum spot ETP flows for calendar year 2025 reached approximately $10.3 billion, nearly 4 times the total flows recorded for Ethereum ETPs in 2024, based on a 2025 year-in-review publication by iShares.
• In fiscal year 2024, Ethereum accounted for 24% of total illicit cryptocurrency volume analyzed across Bitcoin, Ethereum, TRON, Binance Smart Chain, and Polygon, second only to TRON which accounted for 58%, based on the 2025 TRM Labs Crypto Crime Report.
• As of November 2022, Bitcoin held a 40% share of total cryptocurrency market capitalization while Ethereum held 19.5%, with XRP third and stablecoins collectively representing a significant portion, based on a 2023 IMF Working Paper on Taxing Cryptocurrencies.
• In 2024, the global cryptocurrency market capitalization closed the year at $3.4 trillion, with the average trading volume in Q4 2024 reaching $200.7 billion per day, a 128% increase compared to the $88 billion recorded in Q3 2024, based on a 2025 CIAT working paper on taxation of crypto-assets in Latin America.
• Ethereum processed over 1 million transactions per day on-chain by the end of May 2024, approximately twice the daily transaction count of Bitcoin which recorded around 550,000 daily transactions during the same period, based on a 2024 Coin Metrics dataset referenced by Statista.

Capital Gains and Loss Reporting Statistics

• The IRS treats all digital assets, including Ethereum and altcoins, as property rather than currency for tax purposes, meaning every sale, swap, or other disposal generates a reportable capital gain or loss, as established in IRS Notice 2014-21 and confirmed in IRS FAQ Part I guidance updated through 2025.
• Short-term capital gains on Ethereum and altcoin positions held for one year or less are taxed at ordinary income rates ranging from 10% to 37% for US taxpayers, while long-term gains on positions held longer than one year are taxed at 0%, 15%, or 20% depending on taxable income, based on IRS Publication 544 and the 2024 digital asset FAQ guidance.
• Crypto-to-crypto trades, including Ethereum-to-altcoin swaps, are taxable disposal events in the United States; the IRS eliminated like-kind exchange treatment for cryptocurrency after December 31, 2017, requiring gain or loss recognition on all such trades based on the difference between fair market value and cost basis at time of exchange, based on IRS FAQ A50 in the 2025 digital asset guidance.
• Beginning January 1, 2025, US taxpayers must apply a wallet-by-wallet (rather than pooled universal) cost basis tracking method for digital assets, under Revenue Procedure 2024-28 published by the IRS and Treasury, replacing the prior practice of blending basis across accounts.
• For US taxpayers, brokers are required to report gross proceeds on digital asset disposals occurring on or after January 1, 2025 using Form 1099-DA, with cost basis reporting on covered assets required starting with transactions occurring on or after January 1, 2026, based on the IRS final regulations published July 9, 2024 in the Federal Register.
• Capital gains tax on cryptocurrency in the United Kingdom applies at 18% for basic-rate taxpayers and 24% for higher-rate taxpayers on disposals made on or after October 30, 2024, with a £3,000 annual CGT exemption for tax year 2024/25, based on HMRC guidance and the UK Finance Act 2024.
• In the United Kingdom, swapping one cryptocurrency for another, such as exchanging Bitcoin for Ethereum, is treated as a taxable disposal event, with the sterling value of the received asset used as proceeds for CGT calculation under the share pooling rules, based on HMRC’s official Cryptoasset Manual guidance referenced in the Deloitte Taxscape review.
• The EU’s DAC8 directive, requiring crypto-asset service providers to report transactions to national tax authorities across all 27 member states, entered its first reporting year on January 1, 2026, with first reports to be submitted by May 2027, based on the European Commission’s DAC8 documentation.
• As of November 2025, over 50 jurisdictions had requested OECD model texts for transposing CARF rules into domestic law, with bilateral technical assistance provided to several jurisdictions to adapt the models to their domestic legal frameworks, based on the 2025 OECD CARF Monitoring and Implementation Update.

Broker and Exchange Reporting Statistics

• The IRS final regulations published on July 9, 2024 apply Form 1099-DA reporting obligations to operators of custodial digital asset trading platforms, hosted wallet providers, digital asset kiosks, and certain processors of digital asset payments, but explicitly exclude non-custodial or decentralized brokers, based on the IRS newsroom fact sheet updated November 7, 2025.
• The IRS digital asset question on Form 1040 was expanded in tax year 2023 to include additional entity-level forms including Form 1041 (Estates and Trusts), Form 1065 (Partnership), Form 1120 (Corporation), and Form 1120-S (S Corporation), as noted in the 2024 IRS newsroom release on digital asset reporting.
• Revenue Procedure 2024-28 provides a safe harbor allowing eligible taxpayers to allocate unused cost basis to remaining digital asset units held in wallets or accounts as of January 1, 2025, establishing the transitional mechanism for the new wallet-by-wallet accounting requirement, based on the IRS guidance published in 2024.
• The OECD released its CARF XML Schema Version 1.5 in July 2025, providing the standardized technical format for automatic exchange of crypto-asset transaction information between tax administrations globally, building on the original October 2024 schema release, based on the OECD July 2025 CARF XML Schema publication.
• From 1 January 2026, UK reporting crypto-asset service providers (RCASPs) are required by secondary legislation (SI 2025/744) to collect and report to HMRC information on UK resident cryptoasset users, including name, address, tax identification number, and a summary of crypto transactions, based on UK government guidance published June 25, 2025.
• The IRS granted penalty relief to brokers for good-faith filing errors on Form 1099-DA for 2025 transactions (reported in 2026), and separately confirmed that brokers are not required to report cost basis for 2025 transactions, with mandatory basis reporting applying only to covered assets acquired on or after January 1, 2026, based on IRS Notice 2024-56 and IRS Notice 2025-33.
• The PwC 2026 Global Crypto Tax Report covers the direct and indirect tax treatment of crypto assets across 58 jurisdictions with data updated as of October 1, 2025, identifying CARF implementation as the leading structural change across the reporting period, based on the PwC 2026 Global Crypto Tax Report published by PwC Hong Kong.
• The PwC 2024 Global Crypto Tax Report found that 61% of the 59 jurisdictions surveyed had issued guidance on the calculation of crypto capital gains and losses for individuals and businesses, based on the PwC 2024 Global Crypto Tax Report published by PwC Hong Kong.

Enforcement and Prosecution Statistics

• In fiscal year 2025, IRS-CI identified $4.5 billion in tax fraud specifically, representing a 111.8% increase from fiscal year 2024, and issued 25% more search warrants and 14% more prosecution referrals to the Department of Justice compared to fiscal year 2024, based on the IRS-CI FY25 Annual Report.
• In fiscal year 2025, IRS-CI seized more than $800 million in assets and returned $100 million to crime victims, while seizing 2.35 petabytes of digital data, a nearly 60% increase in digital data seizures from the prior fiscal year, based on the IRS-CI FY25 Annual Report.
• During fiscal year 2024, IRS-CI handled 111 cyber matters involving digital assets and seized assets worth approximately $925,728,496, with 72 of those 111 cases recommended for prosecution, based on the IRS-CI FY24 Annual Report.
• In December 2024, Frank Ahlgren was sentenced to 24 months in federal prison and ordered to pay $1,095,031 in restitution after pleading guilty to filing a false tax return that understated Bitcoin capital gains exceeding $3,000,000 for tax years 2017 to 2019, marking the first successful criminal conviction of a retail crypto investor for capital gains tax fraud in the United States, based on the Congressional Research Service report on United States v. Ahlgren.
• From fiscal years 2022 to 2024, 87.3% of IRS-CI criminal investigations recommended for prosecution had a primary subject with a related Bank Secrecy Act filing, and adjudicated cases resulted in a 97.3% conviction rate, with defendants receiving average prison sentences of 37 months, based on the 2025 IRS-CI BSA metrics release.
• IRS-CI used BSA data across fiscal years 2022 to 2024 to identify $21.1 billion in fraud tied to tax and financial crimes, seize $8.2 billion in assets tied to criminal activity, and obtain $1.4 billion in restitution for crime victims, based on the 2025 IRS-CI BSA metrics release.
• In fiscal year 2024, IRS-CI identified over $2.1 billion in tax fraud, sentenced 615 subjects to an average of 27 months in federal prison, initiated over 2,667 criminal investigations, obtained 1,571 convictions, and maintained a 90% conviction rate, based on the IRS-CI FY24 Annual Report.
• The IRS identified a 75% non-compliance rate among taxpayers it identified through records retrieved from digital currency exchanges during targeted compliance reviews, cited in the September 2023 IRS announcement of substantially increased digital asset audit activity, as referenced in the 2024 Deloitte guidance on preparing for IRS examination.

Global Compliance Framework Statistics

• As of July 2024, 58 Global Forum members had announced their intention to commence exchanges under CARF in 2027, signaling that automatic exchange of information on crypto-asset transactions will operate on a broad multilateral basis by that year, based on the European Commission’s DAC8 documentation.
• 48 jurisdictions had signed the CARF Multilateral Competent Authority Agreement (MCAA) as of the publication of the PwC CARF milestone bulletin, operationalizing the mechanism for cross-border exchange of crypto-asset tax data between participating nations, based on the PwC Global CARF implementation bulletin.
• 75 jurisdictions had committed to implementing CARF as of December 2025, with 48 beginning exchanges by 2027, 27 by 2028, and the United States targeting participation by 2029, based on the Coincub/Blockpit Global Crypto Tax Report 2025 citing PwC individual capital gains data.
• In the 2025 FATF Targeted Update, 99 jurisdictions had passed or were in the process of passing legislation implementing the Travel Rule for virtual asset service providers, an increase from 85 jurisdictions reported in 2024, based on the 2025 FATF Targeted Update on Virtual Assets and VASPs.
• Only 1 jurisdiction of the 138 assessed in the FATF’s 2025 mutual evaluation data was found fully compliant with Recommendation 15 on virtual assets, while the percentage of partially compliant jurisdictions improved from 22% in 2024 to 21% in 2025, based on the 2025 FATF Targeted Update on Virtual Assets and VASPs.
• The FATF 2025 Targeted Update identified that the DPRK carried out the largest single virtual asset theft in history in 2025, stealing $1.46 billion from the VASP Bybit, with only 3.8% of the stolen funds recovered, based on the 2025 FATF Targeted Update on Virtual Assets and VASPs.
• One industry participant cited by FATF estimated approximately $51 billion in illicit on-chain activity relating to fraud and scams in 2024, based on the 2025 FATF Targeted Update on Virtual Assets and VASPs.
• The FATF’s June 2024 Targeted Update found that 70% of surveyed jurisdictions (65 of 94, excluding those prohibiting VASPs) had passed Travel Rule legislation, and 77% (53 of 69) had taken enforcement or other supervisory actions against VASPs, both figures representing improvement over 2023 levels, based on the FATF 2024 Targeted Update on Virtual Assets.

Staking, DeFi, and Altcoin Income Tax Statistics

• IRS Revenue Ruling 2023-14 established that staking rewards received by cash-method taxpayers must be included in gross income at fair market value upon receipt, treating staking income from proof-of-stake networks, including Ethereum, as ordinary income in the year received, based on the IRS official guidance page on digital assets.
• Bitcoin futures, Ethereum futures, and Solana futures traded on regulated US exchanges under Section 1256 of the Internal Revenue Code are subject to mark-to-market taxation at year end under a 60/40 blended formula: 60% treated as long-term capital gain and 40% as short-term, regardless of actual holding period, based on IRS Code Section 1256 as explained in the IRS digital asset FAQ.
• The IMF’s 2023 Working Paper on Taxing Cryptocurrencies estimated that capital gains tax revenue at stake from altcoin and crypto disposals worldwide may be in the tens of billions of dollars annually, while identifying quasi-anonymity as the principal implementation challenge for tax authorities, based on IMF Working Paper WP/23/144.
• As of July 2025, illicit entity balances comprising Bitcoin, Ethereum, and stablecoins reached almost $15 billion on-chain, a 359% increase from balances observed in 2020, with approximately 87% of illicit ETH holdings moved within 90 days of last inflow but 35.6% of wallets retaining ETH balances beyond one year, based on Chainalysis’s October 2025 analysis of seizable crypto assets.
• Stablecoins now account for the majority of all illicit cryptocurrency transaction volume, having overtaken Bitcoin as the asset of choice in crypto crime since 2021, with stablecoins comprising 63% of all illicit transactions, based on the Chainalysis 2025 Crypto Crime Report.
• The IMF’s 2025 working paper on stablecoin flows analyzed 2024 stablecoin transactions totaling $2 trillion, finding that flows were highest in North America at $633 billion and Asia-Pacific at $519 billion, with the highest GDP-relative flows in Latin America and the Caribbean at 7.7%, based on IMF Working Paper WP/25/141.

Jurisdiction-Specific Capital Gains Tax Rate Statistics

• As of tax year 2024/25, the UK Capital Gains Tax annual exempt amount for individual cryptoasset disposals was reduced to £3,000, down from £6,000 in 2023/24 and £12,300 in 2022/23, based on HMRC guidance and the UK government’s Cryptoasset Reporting Framework impact note published June 2025.
• For UK cryptoasset disposals on or after October 30, 2024, CGT rates increased to 18% for basic-rate taxpayers and 24% for higher-rate taxpayers, compared to prior rates of 10% and 20%, representing the most significant change in UK crypto tax rates in the current reporting cycle, based on HMRC guidance updated through 2025.
• Research commissioned by HMRC found that males represent approximately 69% of the cryptoasset holding population in the UK, and those in the 16 to 44 age bracket are overrepresented among cryptoasset holders relative to the general UK adult population, based on the UK government domestic CARF reporting impact note published November 2025.
• In 2024 to 2025, multiple jurisdictions raised or formalized capital gains tax rates on crypto disposals: the UK raised CGT to 18% and 24%, Spain added a 30% top band, Brazil normalized a 15% CGT, and Indonesia raised its crypto trade levy from 0.1% to 0.21%, while Nigeria, Albania, and the Philippines all formalized crypto CGT frameworks at 10%, 15%, and 15% respectively, based on the Coincub/Blockpit Global Crypto Tax Report 2025 drawing on PwC individual capital gains data.
• The global benchmark long-term capital gains rate for crypto across surveyed jurisdictions sits near 11%, and the short-term rate near 17%, with flat mid-band regimes dominant: Poland at 19%, Italy at 26%, Austria at 27.5%, and France at rates varying by income band, based on the Coincub/Blockpit Global Crypto Tax Report 2025.
• In France, the 2025 Finance Act activated CARF-aligned crypto reporting requirements from January 1, 2026, requiring French crypto-asset service providers to report user transactions to the tax authority, based on the Coincub/Blockpit Global Crypto Tax Report 2025.

Illicit Activity and AML Statistics Related to Ethereum and Altcoins

• In 2024, the largest percentage of illicit cryptocurrency activity by volume occurred on the TRON blockchain at 58%, followed by Ethereum at 24%, Bitcoin at 12%, Binance Smart Chain at 3%, and Polygon at 3%, based on the TRM Labs 2025 Crypto Crime Report.
• Of total attributed illicit crypto transaction volume, 49% of TRON’s illicit volume was linked to sanctioned entities while 32% involved blocklisted funds, compared to Ethereum’s 24% overall share of illicit volume, based on the TRM Labs 2025 Crypto Crime Report.
• As of July 2025, approximately 87% of Ethereum holdings associated with illicit entities were moved within 90 days of last inflow, while 35.6% of wallets retained ETH balances beyond the one-year mark, compared to stablecoins where 95% of balances are drained within 90 days, based on Chainalysis’s October 2025 landscape of seizable crypto assets report.
• Russia launched its ruble-backed A7A5 token in February 2025 to facilitate sanctions evasion via cryptocurrency, transacting over $93.3 billion in less than one year, based on the Chainalysis 2026 Crypto Crime Report introduction.
• IRS Criminal Investigation obtained a more than 90% federal conviction rate across all financial crime investigations during fiscal year 2024 and sustained a 97.3% conviction rate specifically in adjudicated cases where the primary subject had at least one related Bank Secrecy Act filing, based on the 2025 IRS-CI BSA metrics release and the IRS-CI FY24 Annual Report.

References

• https://www.sec.gov/Archives/edgar/data/0001679788/000167978825000022/coin-20241231.htm
• https://www.etf.com/sections/features/spot-ethereum-etfs-effervescent-1-year-anniversary
• https://www.irs.gov/newsroom/irs-ci-issues-fiscal-year-2025-annual-report-showcasing-banner-investigative-results
• https://www.congress.gov/crs-product/LSB11353
• https://www.fatf-gafi.org/en/publications/Fatfrecommendations/targeted-update-virtual-assets-vasps-2025.html
• https://www.oecd.org/content/dam/oecd/en/networks/global-forum-tax-transparency/crypto-asset-reporting-framework-monitoring-implementation-update-2025.pdf
• https://www.chainalysis.com/blog/2026-crypto-crime-report-introduction/
• https://www.warren.senate.gov/imo/media/doc/2023.08.01%20Letter%20to%20Treasury%20and%20IRS%20re%20Crypto%20Tax%20Reporting%20Requirements.pdf
• https://www.gov.uk/government/publications/cryptoasset-reporting-framework-reporting-of-uk-resident-cryptoasset-users/domestic-reporting-of-uk-resident-cryptoasset-users-under-the-cryptoasset-reporting-framework
• https://www.sec.gov/Archives/edgar/data/0001679788/000167978824000019/shareholderletterq42023.htm
• https://www.ishares.com/us/insights/2025-etf-market-trends-record-flows
• https://www.trmlabs.com/reports-and-whitepapers/2025-crypto-crime-report