Can the IRS Track Crypto in 2026? Digital Assets and Bitcoin

December 2024. A federal court gives Frank Richard Ahlgren III 24 months in prison plus USD 1,095,031 in restitution. The offense: filing false tax returns on more than USD 3.7 million of Bitcoin gains. DOJ calls it the first criminal tax evasion prosecution built solely on cryptocurrency. Debate over. Can the IRS track crypto activity down to the wallet? Yes. The IRS can track crypto and it will prosecute when it decides the case is worth the effort. What shifted in 2025 and 2026 is not whether the IRS can see your crypto activity. It is how much work the agency has to do to see it.

So, short answer to "can the IRS track crypto" in 2026: yes, more thoroughly than any year before. Form 1099-DA is in force for the 2025 tax year, which means US exchanges already shipped reports of every 2025 sale straight to the IRS by late January 2026. Blockchain analytics contracts with Chainalysis, TRM Labs, and Inca Digital keep growing. The Form 1040 digital asset question sits at the top of every federal income tax return. Self-custody and DeFi only change the friction, not the floor.

This guide walks through how the IRS actually tracks crypto under the new IRS reporting requirements. The new reporting regime. The forms you have to file. The blockchain tools the agency relies on. The court orders behind the scenes. The penalty framework tying it all together. No fear-mongering here, no tax advice either, just the mechanics. Run your own return past a tax professional before you file.

Can the IRS track crypto? The short answer

Yes. The Internal Revenue Service issued Notice 2014-21 more than a decade ago, and since then virtual currency is treated as property for federal income tax purposes. The IRS can even track cryptocurrency that never touches a centralized exchange once a wallet has ever been KYC-linked. Every sale, trade, or payment in crypto counts among taxable transactions, and the IRS has built up the toolkit to see most of them. US tax laws around crypto have only tightened since 2014.

Three big shifts made this true. First, the Form 1040 itself: since 2020, the IRS has asked at the top of the return whether the taxpayer had any interest in any virtual currency or digital asset during the tax year. Lying on that line is a separate offense beyond whatever taxes you owe, and provides the IRS with grounds for a fraud referral. Second, the broker reporting regime. Starting with the 2025 tax year, major crypto exchanges must send Form 1099-DA directly to the IRS (and to each customer) listing gross proceeds from 2025 digital asset transactions and virtual currency transactions together. Cost basis reporting is added to the 1099-DA from 2026 tax-year transactions onward. Third, blockchain analytics. The IRS has signed multi-million-dollar contracts with Chainalysis and TRM Labs for years, and now has trained agents specifically assigned to crypto cases.

You do not need to hide to be visible. If a single US exchange has your KYC file, a single 1099-DA can match you to your on-chain address in seconds. That is the whole point. Not a theory anymore.

How the IRS tracks crypto transactions today

The IRS uses five overlapping tools. Each of them reduces the anonymity a crypto user might expect from the blockchain alone.

Direct exchange reporting. Regulated US platforms (Coinbase, Kraken, Gemini, Robinhood, Crypto.com) already collect KYC and must file 1099-DA, 1099-MISC (staking, referrals), and sometimes still 1099-B or 1099-K. Each 1099 tax form goes to the user and the IRS on the same day; mismatches trigger automated review because exchanges report transactions the IRS can match line-by-line to your return. The IRS even checks 1099 positions against publicly visible blockchain data.

Blockchain analytics. USAspending.gov shows IRS-CI has awarded Chainalysis a web-subscription contract totaling USD 21.5 million, with a separate USD 3.3 million in IRS Cyber Crimes Unit "Case Support and Training" spend over four years. IRS-CI also contracts with TRM Labs to avoid vendor concentration, and posted a USD 625,000 bounty in September 2020 for tools to trace Monero and the Bitcoin Lightning Network. These vendors cluster addresses by behavior, tie clusters back to exchanges, and flag transactions to the IRS for review. Ethereum and Bitcoin are effectively de-anonymized to any agent with a subpoena.

John Doe summonses. A special IRS tool that forces an exchange to hand over data on entire categories of users (not named individuals) by court order. The IRS has used it against Coinbase (2016, narrowed to 14,355 accounts and 8.9 million transactions), Kraken (authorized 2021, delivered about 160 million records covering 59,351 accounts in late 2023), Circle / Poloniex (April 2021), and SFOX plus its bank M.Y. Safra (2022).

Bank and payment data. Wire transfers to and from exchanges trigger Bank Secrecy Act reporting. CTRs and SARs eventually flow to Treasury, and the IRS gets lookups that provide the IRS with leads on unreported activity.

Operation Hidden Treasure. Launched March 5, 2021 by the IRS Office of Fraud Enforcement and Criminal Investigation, this team combines data analytics with on-chain forensics to find underreported crypto income. IRS-CI initiated 2,667 criminal investigations in FY24 with a 90% conviction rate, identified USD 9.1 billion in fraud, and seized USD 925.7 million in cyber matters (IRS-CI FY2024 Annual Report).

Put these together and the IRS does not need to chase every wallet. It needs one link — a KYC file plus an on-chain trail, and the rest is arithmetic.

Form 1099-DA: the new crypto tax reporting rule

Form 1099-DA is the biggest single change in US crypto tax reporting since that digital asset question first appeared on the Form 1040. Treasury finalized the custodial broker regulations (TD 10000) on June 28, 2024 under IRC Section 6045. Phased start date.

There was a separate rule too. The DeFi broker rule (TD 10021) would have pulled non-custodial interfaces into 1099-DA filing from January 1, 2027. Congress killed it. The Congressional Review Act resolution passed in April 2025, signed April 10, 2025 as H.J.Res.25 / Public Law 119-5. The Joint Committee on Taxation scored the revenue loss from that repeal at USD 3.9 billion. First time ever a tax regulation got killed through the CRA.

That repeal limits 1099-DA to custodial brokers for now. Self-hosted wallets and non-custodial DEX front-ends stay outside the 1099-DA net, at least in 2026. IRS Notice 2025-33 arrived in June 2025 and extended broker transition relief on backup withholding plus certain reporting penalties all the way through 2027.

Traded on Coinbase, Kraken, Robinhood, or any US exchange during 2025? Expect a 1099-DA to show up in early 2026. The IRS has the same document already. Matching it to your return is automated. Any mismatch triggers a CP2000 notice. Nobody at the IRS needs to open the file manually.

Which crypto exchanges report to the IRS?

Every US-based crypto exchange serving US customers reports to the IRS and the IRS treats each of these platforms as a financial institution for tax purposes. Cryptocurrency exchanges outside the US that serve US residents are in a gray zone that the IRS is actively shrinking. Cryptocurrency transactions on these major crypto exchanges all touch cost basis data that will, from 2027 onward, be matched against cost basis by 25% accuracy thresholds, so accurately report your transactions in real time.

Report to the IRS today (major crypto exchanges):

• Coinbase, 1099-MISC historically, 1099-DA starting with 2025 tax year.
• Kraken, 1099-MISC, 1099-DA starting 2025.
• Gemini, 1099-MISC, 1099-DA starting 2025.
• Crypto.com US, 1099-MISC, 1099-DA starting 2025.
• Robinhood Crypto, 1099-B historically, 1099-DA starting 2025.
• Binance.US, 1099 family, 1099-DA.
• Bitstamp, 1099 family.
• PayPal and Cash App, 1099-K and 1099-DA depending on activity.

Do not directly report (but still traceable):

• Non-US platforms like MEXC, KuCoin (US access restricted), OKX (US access restricted), Bitget, and Gate.io. These do not file 1099-DA today, but US users must still self-report, and on-chain transfers between these and any US exchange are easily traced.
• Decentralized exchanges (Uniswap, PancakeSwap, Curve, dYdX). No entity files a 1099 for DEX swaps. Same self-report rule applies.

"The exchange does not send a 1099" and "the IRS does not know" are two different things. The IRS may not know immediately, but the blockchain is permanent, and a future John Doe summons or voluntary disclosure can close the gap years later.

John Doe summonses let the IRS track crypto users

A John Doe summons is the blunt instrument behind most of the high-profile IRS crypto cases. The target is the exchange, not the individual, and the scope is typically every US user whose transactions crossed a dollar threshold during specific years. Courts have consistently approved them as long as the IRS can show a reasonable basis to believe some class of users is underreporting.

Every round of John Doe summonses feeds the IRS matching engine with another pool of KYC-linked records it can compare against Form 1040 filings. If your name came back in one of these summonses, you already know. The letter arrived years ago.

What to report: crypto investments and capital gains

Quick tour. Did you sell, swap, spend, or receive any digital asset last tax year? The IRS wants a full accounting of it. Crypto investors need to report crypto capital gains on their federal income tax return, alongside every other capital gains and losses line. Everything must be reported; the forms carrying the load are listed below. Filing correctly is how crypto investors ensure tax compliance.

• Form 1040 is the main income tax return. That digital asset question at the top gets a yes or no. No maybe.
• Form 8949 captures every sale or disposal, line by line. Acquisition date, disposal date, proceeds, cost basis, gain or loss per trade.
• Schedule D (Form 1040) rolls up Form 8949 totals into short-term and long-term capital gains and losses.
• Schedule 1 (Form 1040) catches ordinary crypto income: staking rewards, airdrops, mining, payments for goods or services.
• Schedule C covers self-employment income paid in crypto.
• Form 8938 covers foreign financial assets over certain thresholds, and catches some offshore exchange holdings.

If you traded across multiple wallets and exchanges, expect dozens or hundreds of 8949 lines on a single tax return. Not fun. Crypto tax software like CoinLedger, Koinly, TokenTax, and TurboTax pulls 1099s and on-chain activity, then produces 8949 output matching what the IRS already has. Every taxable transaction involving crypto lands on one of these forms. Leave one small trade off, and the IRS matching engine finds it. Transactions using different platforms all flow into the same cross-check, so any gap shows up fast.

Cost basis rules for digital asset transactions

Cost basis is the price you paid for the crypto you later sold or spent. Capital gain or loss then equals proceeds minus cost basis. Holding period decides long-term vs short-term. Over a year, long-term. Under, short-term. That part has not changed in a decade of federal income tax purposes. What did change, and it matters a lot, is the method.

Revenue Procedure 2024-28 landed on June 28, 2024, and it killed the old "universal" pool. Starting January 1, 2025, every wallet and exchange account keeps its own basis ledger, more like how a brokerage tracks individual stock lots. Notice 2025-07 arrived December 31, 2024, giving taxpayers a transitional lifeline: standing-order specific identification worked through 2025 for people who had not yet reallocated.

Practical consequence, the part that actually hits the tax prep process: if you moved coins between wallets in 2024 or earlier, you probably need to snapshot cost basis per wallet as of year-end 2024. Then run 2025 transactions against those opening balances. Crypto tax software (CoinLedger, Koinly, TokenTax, TurboTax) handles most of the arithmetic. The inputs still need to be clean. Report your cost basis accurately; the IRS may match the figures against the 1099-DA automatically and flag the gap.

Self-custody, DeFi, and wallet-level tracking

Self-custody does not make you invisible. It just makes you harder to find by default. Then much easier to find, the moment anyone looks.

Every MetaMask extension, Rabby window, or Ledger device eventually plugs into a dApp, a centralized exchange, or a fiat on-ramp. Those endpoints run KYC. From there, Chainalysis and similar tools cluster addresses to the wallet that touched the KYC'd interface. MetaMask routes transactions through Infura by default. Infura logs IP addresses and Ethereum addresses during transactions, unless the user opts out.

DeFi is a harder target for the IRS, but not impossible. Every Uniswap swap, every Aave loan, every Curve LP position sits on a public ledger. Cluster the wallet once through a centralized touchpoint and the whole history is readable. The only real friction is volume. The IRS does not process every wallet. It processes wallets that match a John Doe summons, a CP2000 mismatch, or an Operation Hidden Treasure referral.

Privacy coins (Monero, Zcash shielded) and mixers (Tornado Cash, Samourai Whirlpool) narrow visibility further but trigger red flags. The IRS has offered bounties of up to USD 625,000 for Monero and Lightning tracing tools (September 2020), and the DOJ has prosecuted mixer operators. Tornado Cash was OFAC-sanctioned in August 2022 and those sanctions were lifted on March 21, 2025 after a Fifth Circuit ruling that immutable smart contracts cannot be sanctioned property, but IRS-CI retained its case against co-founder Roman Storm (trial July 2025). Ahlgren used Wasabi CoinJoin to obscure trades and still got convicted, which is the relevant lesson. Using privacy tools is legal in the US. Combining them with unreported income is tax evasion, and that is what gets prosecuted.

IRS enforcement: Operation Hidden Treasure cases

Operation Hidden Treasure links the IRS Office of Fraud Enforcement to IRS Criminal Investigation, with Chainalysis on the analytics side. Running since 2021. The cases that surfaced in 2024 and 2025 finally show what the program can actually do.

Ahlgren is the headline. Frank Richard Ahlgren III pleaded guilty in August 2024 and walked out of sentencing that December with two years ahead of him. The crime: false returns hiding over USD 3.7 million in Bitcoin gains from 2017 through 2019. Restitution came in at USD 1,095,031. This was the first pure-crypto tax fraud sentencing on US soil. DOJ also had him surrender private keys to roughly USD 124 million in remaining crypto, which the news cycle mostly skipped past.

Roger Ver is the other big name. "Bitcoin Jesus," indicted April 30, 2024. Charge: under-reported around USD 48 million in tax on roughly 131,000 BTC connected to a 2017 expatriation plus later sales. Ver fought the case out of Spain for more than a year. Then on October 14, 2025 it wrapped up: deferred prosecution agreement, USD 49.9 million paid to close the matter, charges dismissed.

Amir Elmaani, better known as "Bruno Block," founded Oyster Protocol. He got 4 years in November 2023 with USD 5.5 million in restitution. Predates the 2024-2025 wave. Still, it set the tone for token-founder tax cases that came after.

Then there is Binance. USD 4.3 billion settlement with DOJ and Treasury, November 2023. Largest cryptocurrency enforcement action in Treasury history. Mostly Bank Secrecy Act and anti-money-laundering violations, not direct tax evasion. It still changed the appetite of every enforcement office downstream of it.

Put named cases aside for a minute. The IRS sent more than 10,000 soft letters (Letters 6173, 6174, 6174-A) in July 2019 alone. CP2000 notices are still landing in 2026. Most never become criminal cases. They do assess back taxes, interest, and accuracy-related penalties. The funnel is wide at the top, narrow at the bottom. Almost everyone exits through civil settlement, not a courtroom.

Can the IRS track crypto tax penalties across years?

The penalty math for crypto taxes lines up with the civil and criminal rules that already cover the rest of the Internal Revenue Code. Nothing exotic here, just numbers most tax lawyers could recite in their sleep.

The standard IRS audit is three years long. You must report correctly within that window. Underreport gross income by more than 25% and the IRS audit is three years no longer, it stretches to six. File a fraudulent return, or no return at all, and there is no statute of limitations at all. Nothing. Combine that with the IRS automatically matching 1099-DA data to old returns once the 2025 forms land, and suddenly long-ago unreported trades are current problems.

FBAR and Form 8938 add a foreign-held crypto layer on top. FinCEN's December 2020 Notice 2020-2 proposed bringing crypto inside the FBAR definition. Still not finalized as of April 2026. Form 8938 (FATCA) thresholds sit at USD 50,000 at year-end or USD 75,000 at any time for single filers. Those probably cover crypto held on foreign custodial accounts, though the IRS has not said yes cleanly. Non-willful FBAR penalties run up to USD 16,536 per annual form for 2025. Most tax practitioners just file both to be safe.

What to do if you forgot to report your crypto

Missed a prior-year crypto report? Amending almost always costs less than waiting for an audit to catch up with you. The workflow to track and report the backlog is pretty simple. Goal here is tax compliance across every prior year, so the IRS will likely close the mismatch at civil-penalty levels rather than criminal ones.

1. Pull every exchange statement and on-chain crypto history for the years in question. Use crypto tax software to produce a corrected Form 8949.

2. File Form 1040-X (amended return) for each affected tax year, attaching the new 8949 and Schedule D.

3. Pay any additional tax, interest, and accuracy-related penalty. An amended return before the IRS contacts you typically caps the penalty at 20%.

4. For material underreported crypto income, consider the Voluntary Disclosure Practice (Form 14457). Entering the program before the IRS opens an investigation usually avoids criminal referral. The 2024 VDP update now explicitly covers cryptocurrency with a 6-year lookback and a 75% civil fraud penalty on the highest-deficiency year.

Do not try to "catch up" by restating the new tax year only. The IRS matching engine will see the old mismatch anyway and open a parallel review. International info-sharing is tightening fast too: 67 jurisdictions have committed to the OECD Crypto-Asset Reporting Framework (CARF), with 52 exchanging data by 2027 and the EU's DAC8 directive in force from January 1, 2026. The US joined the CARF joint statement but will not exchange before 2029; even so, the Joint Chiefs of Global Tax Enforcement (J5) already swap near-real-time crypto intelligence between IRS-CI, HMRC, ATO, CRA, and FIOD.

Marco Lucchetti

Marco Lucchetti is a senior content strategist and blockchain analyst at Plisio. With over 7 years of experience in cryptocurrency research, DeFi protocols, and payment technologies, Marco specializes in creating clear, data-driven content for a global crypto audience. His work focuses on transaction tracing, crypto compliance, and the future of blockchain infrastructure.