IRS Form 1099-DA and CARF Crypto Reporting in 2026

US crypto brokers are not subject to DAC8 (an EU-only directive) or CARF as a direct domestic mandate. The US domestic equivalent is IRS Form 1099-DA, introduced by Treasury final regulations in 2024 and effective for transactions beginning January 1, 2026. Any custodial platform that facilitates digital asset sales for US customers must collect verified KYC data, calculate gross proceeds, and file 1099-DA with the IRS -- or face civil and criminal penalties. CARF matters to US firms in a narrower but real sense: the US has aligned with the OECD framework for international information exchange, meaning cross-border client data flows to and from CARF-implementing jurisdictions. This article explains both layers, tells you exactly who must file, what data you need to collect, and what it costs to get it wrong.

Disclaimer: This article is for general informational purposes only and does not constitute legal, tax, or regulatory advice. US digital asset regulations are evolving rapidly. Consult qualified legal counsel before making compliance decisions.

What Is the IRS Digital Asset Broker Reporting Rule (and How It Relates to CARF)

The IRS digital asset broker reporting rule is the US domestic implementation of the principle that governments should collect systematic, third-party tax information on crypto transactions -- the same principle that underpins CARF internationally. For US-based brokers, compliance means Form 1099-DA, not CARF or DAC8.

The final regulations were published by the US Department of the Treasury and IRS as Treasury Decision 9972 in June 2024, amending regulations under Internal Revenue Code (IRC) Section 6045. The regulatory history is straightforward:

• 2021: Infrastructure Investment and Jobs Act amended IRC §6045 to define "broker" to include persons who regularly provide services to effectuate digital asset transfers.
• 2023: IRS issued proposed regulations defining broker obligations for digital assets.
• 2024: Treasury finalized regulations, with an effective date of January 1, 2026 for the first reporting obligation (gross proceeds from sales in tax year 2025, filed in early 2026).
• 2026: Mandatory cost basis reporting kicks in for digital assets acquired on or after January 1, 2026.

CARF (the Crypto-Asset Reporting Framework) was developed by the OECD and adopted by the Global Forum on Transparency and Exchange of Information for Tax Purposes. The US supports CARF for international exchange purposes. In practical terms, this means:

• US-based firms with clients in CARF-adopting jurisdictions (EU member states, UK, Canada, Japan, and others) may receive or transmit account information under automatic exchange frameworks.
• FATCA (the Foreign Account Tax Compliance Act) and CRS (the Common Reporting Standard) already create channels for this exchange; CARF extends them to crypto assets.
• DAC8 is the EU's domestic transposition of CARF into EU law. It applies to EU-based crypto asset service providers. A US platform with no EU legal presence is not directly subject to DAC8, but EU-resident customers whose data it holds may trigger CARF exchange.

For readers outside the US looking for a comparable EU framework, see our article on MiCA crypto identity verification requirements.

Who Must File Form 1099-DA in 2026

Any "broker" as defined under amended IRC Section 6045 that facilitates digital asset sales involving US persons must file Form 1099-DA. This definition is deliberately broad and captures most centralized platforms operating in the US market.

The IRS defines a broker for digital asset purposes as any person who, in the ordinary course of a trade or business, stands ready to effect sales of digital assets at the direction of their customers. The final regulations identify three primary categories of covered brokers:

1. Custodial digital asset trading platforms: Centralized exchanges (CEXs) that hold customer assets and execute trades on their behalf. This includes platforms like those that hold user private keys and process buy/sell orders.
2. Custodial hosted wallet providers: Services that maintain custody of customer digital assets, even if not primarily a trading platform. If the service effects transfers on behalf of customers, it qualifies.
3. Digital asset payment processors: Businesses that facilitate digital asset payments in exchange for real currency or goods and services, where they have custody of assets during the transaction.

What is explicitly excluded (for now):

• Non-custodial (self-hosted) wallets: Wallet software or hardware where the user alone holds the private keys is not a broker under the final regulations.
• DeFi protocols and non-custodial DEXs: The IRS issued separate proposed regulations on decentralized finance in 2024. Those proposed rules, which would have covered some DeFi participants, faced significant legal and legislative challenges. As of 2026, non-custodial DeFi platforms are not subject to 1099-DA filing obligations under the finalized rules.
• Validators and miners: Entities that validate transactions on a blockchain but do not custody customer assets do not qualify as brokers.

If your platform custodies assets and facilitates trades for US-person customers -- regardless of where the platform itself is incorporated -- the broker definition likely applies. Consult IRS guidance on digital assets and qualified tax counsel to confirm your status.

For a broader view of compliance obligations across financial services, see our document compliance guide.

KYC Data Requirements for US Crypto Brokers

US crypto brokers must collect and verify the same core customer identity data required by Form 1099-DA as they collect to satisfy FinCEN's Customer Due Diligence (CDD) rule -- meaning KYC and tax reporting obligations are aligned, and a single verified identity record can satisfy both.

Form 1099-DA requires the broker to report the following customer information to the IRS:

The requirement to collect SSN (for individuals) or EIN (for entities) is the functional equivalent of the TIN collection requirement under CARF. The legal basis is different -- US Know Your Customer rules under the BSA's CDD Rule (31 CFR § 1020.220) and the tax identification requirements of IRC § 6045 -- but the operational result is identical: you cannot open an account, complete onboarding, or permit trading without verified tax identification.

TIN solicitation rules: If a customer fails to provide a valid TIN, the broker must apply backup withholding at the rate of 24% on gross proceeds (IRC § 3406). This creates a strong financial incentive for customers to provide accurate information -- and a strong operational incentive for brokers to build verification into the onboarding flow rather than attempting remediation afterward.

CheckFile's KYC verification platform supports automated extraction and validation of SSN, EIN, name, address, and date-of-birth from identity documents, reducing manual review time and enabling same-session onboarding. See our banking KYC solutions for implementation details.

Key Deadlines and Filing Timeline

The 1099-DA filing timeline mirrors the existing 1099-series schedule: brokers must furnish copies to customers by January 31 and file with the IRS by February 28 (paper) or March 31 (electronic), covering transactions from the preceding tax year.

Cost basis method rules: For digital assets acquired before January 1, 2026 (so-called "pre-effective-date" assets), brokers are not required to track or report cost basis. However, customers may still need to calculate and report their own basis. For assets acquired on or after January 1, 2026, brokers must track basis using the specific identification method (if the customer makes a proper election) or the first-in, first-out (FIFO) method as the default.

Transition relief: The IRS issued Notice 2024-56 and related guidance providing limited transition relief for brokers working to implement systems. Check current IRS notices at irs.gov/filing/digital-assets for the latest administrative guidance, as relief provisions may be updated.

AML Obligations Under FinCEN and the Bank Secrecy Act

US crypto brokers that qualify as money services businesses (MSBs) under the Bank Secrecy Act face AML program requirements, SAR filing obligations, and CTR reporting entirely separate from -- and in addition to -- the IRS tax reporting rules under Form 1099-DA.

The BSA framework, administered by FinCEN, requires covered entities to maintain four pillars of compliance:

1. Written AML program: Documented policies and procedures covering customer identification, transaction monitoring, SAR filing, and independent testing.
2. Customer Due Diligence (CDD): Collecting and verifying customer identity at account opening (the same KYC data required for 1099-DA), plus identifying beneficial owners of legal entities (25% ownership threshold under 31 CFR § 1010.230).
3. Suspicious Activity Reports (SARs): Filed with FinCEN when a transaction involves $5,000 or more and the broker knows, suspects, or has reason to suspect that the transaction involves proceeds from illegal activity, is designed to evade BSA requirements, or lacks a lawful purpose.
4. Currency Transaction Reports (CTRs): Filed for cash transactions exceeding $10,000 in a single business day (31 CFR § 1010.311). For crypto businesses, this typically applies to cash-in/cash-out transactions at ATMs or OTC desks.

Beyond basic AML program requirements, the USA PATRIOT Act (Title III, specifically Section 326) mandated minimum standards for Customer Identification Programs (CIPs), which FinCEN implemented through 31 CFR § 1020.220. These CIP rules require:

• Minimum identifying information collected before account opening: name, date of birth (individuals), address, and identification number (SSN/EIN).
• Identity verification: Documentary verification (government-issued photo ID) or non-documentary methods (credit bureau check, public database check, other reliable methods).
• Recordkeeping: CIP records must be retained for five years after account closure.

For FinCEN's official guidance on how these rules apply to crypto businesses specifically, see FinCEN's Application of FinCEN Regulations to Persons Administering, Exchanging, or Using Virtual Currencies (FIN-2013-G001) and subsequent guidance documents.

The intersection of FinCEN AML obligations and IRS 1099-DA requirements means that a properly executed KYC onboarding flow -- one that collects, verifies, and retains name, address, TIN, and date of birth -- satisfies both regulatory frameworks simultaneously. For more on AML compliance program design, see our AMLD6 compliance guide.

Penalties for Non-Compliance with IRS Crypto Reporting

Failure to file accurate, timely Form 1099-DA returns exposes brokers to civil penalties up to $310 per return (as of 2026 inflation adjustment) for non-willful failures, with no statutory cap for willful failures and potential criminal prosecution under IRC § 7203.

The penalty structure for information return failures is set out in IRC §§ 6721 (failure to file with IRS) and 6722 (failure to furnish to payee):

Note: Dollar amounts above reflect 2026 inflation-adjusted figures. The base statutory amounts are $50/$110/$280 per IRC §§ 6721-6722; amounts are adjusted for inflation annually.

Criminal penalties: Willful failure to file information returns can constitute a criminal offense under IRC § 7203 (misdemeanor, up to one year imprisonment) or, where fraud is involved, IRC § 7206 (felony, up to three years imprisonment). The DOJ Tax Division has pursued criminal cases against crypto exchange operators who knowingly failed to implement required reporting systems.

Backup withholding liability: If a broker fails to obtain a valid TIN and does not apply the required 24% backup withholding, the broker becomes personally liable for the withheld amount plus interest and penalties.

FinCEN penalties: Separately, willful BSA violations carry civil penalties up to $25,000 per day of violation and criminal penalties up to $250,000 and five years imprisonment under 31 USC § 5322. For patterns of violations, the combination of IRS and FinCEN penalties can be existential for smaller platforms.

Review CheckFile's security and data handling standards to understand how verified identity records are stored and protected against the document fraud that underlies many compliance failures.

Automating KYC Document Verification for 1099-DA Compliance

Automated document verification directly addresses the two highest-risk failure points in 1099-DA compliance: collecting the wrong TIN at onboarding, and failing to verify identity documents against the person presenting them -- both of which produce unfiled or incorrectly filed returns that trigger penalties.

The compliance challenge is scale and accuracy. A crypto platform onboarding thousands of customers per month cannot rely on manual document review to catch altered IDs, mismatched names, or fictitious SSNs. Automated KYC verification closes these gaps:

• OCR-based data extraction: Pulls name, address, date of birth, and document number from government-issued ID with accuracy rates that exceed manual review for structured fields.
• TIN format validation: SSN (999-99-9999) and EIN (99-9999999) format checks catch transposition errors before they propagate into 1099-DA records.
• Document authenticity checks: Detects altered or counterfeit documents -- a particular risk in crypto onboarding where fraud rates run higher than traditional finance due to the irreversibility of digital asset transfers.
• Liveness detection: Confirms that the person submitting the document is physically present, reducing synthetic identity fraud.
• Audit trail: Generates a timestamped record of every verification action, satisfying the five-year CIP recordkeeping requirement under 31 CFR § 1020.220(a)(3)(ii) and providing evidence of good-faith compliance in the event of an IRS examination.

CheckFile's document verification platform integrates directly into onboarding workflows via API, enabling brokers to complete KYC verification within the account-opening session. See our pricing for volume-based plans suited to exchange-scale onboarding.

Frequently Asked Questions

Does Form 1099-DA apply to non-US crypto exchanges that have US customers?

Yes, if the exchange is a "broker" under IRC § 6045 -- meaning it effects digital asset sales for US persons and has custody of their assets during the transaction -- the 1099-DA obligation applies regardless of where the exchange is incorporated or headquartered. The IRS applies the same extraterritorial logic used for FATCA: if you serve US persons, you are subject to US tax reporting rules. Practically, many non-US exchanges have chosen to geo-block US customers rather than comply, but platforms that do serve US users must file. Failure to comply while knowingly serving US customers is treated as willful non-compliance.

Is CARF the same thing as DAC8, and does either apply in the US?

No. CARF (Crypto-Asset Reporting Framework) is the OECD model standard for international exchange of crypto tax information between participating jurisdictions. DAC8 is the European Union's domestic directive that implements CARF obligations for EU-based crypto asset service providers. The US does not implement CARF as a domestic filing obligation -- Form 1099-DA is the domestic instrument. However, the US participates in CARF-based international exchange, meaning that account information about foreign-resident customers may flow between US brokers and foreign tax authorities under applicable exchange agreements. DAC8 is not relevant to US-only operations.

What happens if a customer refuses to provide their SSN?

If a customer refuses to provide a Taxpayer Identification Number, the broker must not open the account, or -- if the account is already open -- must apply backup withholding at 24% on all reportable gross proceeds (IRC § 3406(a)). The broker must also make a "B-notice" follow-up in accordance with IRS Publication 1281 if the TIN provided does not match IRS records. Chronic TIN mismatches result in mandatory backup withholding and can trigger an IRS examination of the broker's CIP procedures.

How does cost basis tracking work for digital assets received as staking rewards or airdrops?

For digital assets acquired through staking, mining, or airdrops (as opposed to purchases), the cost basis is the fair market value of the asset at the time of receipt -- because those assets are taxable as ordinary income when received under current IRS guidance (Revenue Ruling 2023-14 for staking specifically). A broker that custodies staked assets is expected to track the FMV at the time of receipt as the cost basis record for future sale reporting on Form 1099-DA. This is operationally complex because it requires brokers to capture and store price data at specific timestamps, not just at the time of a sale. Platforms building 1099-DA infrastructure should account for this additional data requirement when acquired assets include staking rewards or airdropped tokens.

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For further reading on identity verification in regulated industries, see our document compliance guide. For EU-specific crypto reporting requirements, see MiCA crypto identity verification 2026.

External regulatory sources: IRS Digital Assets | FinCEN Virtual Currency Guidance | IRC § 6045 (congress.gov)