Crypto Tax Reporting and Form 1099-DA: What Businesses Must Know

Crypto tax reporting has entered a new era. For years, crypto enjoyed limited third-party reporting, leaving compliance largely to taxpayers. That has changed: brokers in major jurisdictions now report crypto transactions directly to tax authorities, with the US Form 1099-DA the leading example. This guide explains the new reporting regime, what it means for businesses, and how to file accurately in a world where authorities can match your return against broker data.

What is changing in crypto tax reporting?

Crypto tax reporting is shifting from taxpayer self-reporting to mandatory third-party reporting. Brokers and exchanges are increasingly required to report customer transactions directly to tax authorities, mirroring the long-standing reporting regime for stocks and securities.

For most of crypto’s history, exchanges provided limited or inconsistent tax documentation, and authorities had little direct visibility into individual activity. New rules change that fundamentally. By requiring brokers to report disposals and, increasingly, cost basis, authorities gain the same window into crypto that they have long had into traditional brokerage accounts. This closes a major compliance gap and signals that the era of crypto operating outside normal tax reporting is ending, a trend consistent with the broader regulatory maturation in our regulation hub.

What is Form 1099-DA and who issues it?

Form 1099-DA is the US information return on which digital-asset brokers report customers’ crypto transactions to the IRS and provide a copy to the customer. Issued by exchanges and other qualifying brokers, it reports proceeds from crypto disposals and, increasingly, cost-basis information.

The form parallels the 1099-B used for securities, adapting it to digital assets. Brokers report the gross proceeds from sales and exchanges, with cost-basis reporting being phased in. Customers receive the form and must use it, alongside their own records, to report gains and losses accurately. Because the IRS receives the same data, the form effectively pre-populates the authority’s expectation of what the taxpayer should report, making accurate reconciliation essential. Businesses operating across multiple exchanges may receive several forms, each covering only that broker’s activity.

Why is reconciliation between records and broker forms critical?

Reconciliation is critical because broker forms often capture only part of the picture. A broker knows the transactions on its own platform but not a business’s cost basis from other sources, self-custody activity, or DeFi transactions. Mismatches between the form and the business’s records can trigger automated tax notices.

The reconciliation problem is real and common. A business might transfer crypto to an exchange and sell it there; the broker reports the sale proceeds but may not know the original cost basis if the asset was acquired elsewhere, potentially overstating the apparent gain. Conversely, activity on self-custodied wallets and DeFi protocols generates taxable events no broker reports at all, which the business must still declare. Accurate filing therefore requires combining broker forms with the business’s own complete records, resolving discrepancies before submission. This is exactly why the comprehensive tracking emphasized in our capital gains guide matters so much.

What happens if reporting is inaccurate or omitted?

Inaccurate or omitted crypto reporting increasingly triggers automated notices, because tax authorities can match broker data against filed returns. Consequences range from notices demanding clarification to back taxes, interest, and penalties, with deliberate evasion carrying more severe consequences.

The shift to third-party reporting makes non-compliance far riskier than before. When the authority already holds broker data, a return that omits or understates reported transactions stands out automatically, prompting a notice. Many such notices stem not from evasion but from incomplete records or failure to account for cost basis the broker did not report. Responding requires the very documentation the business should have maintained all along. The lesson is that proactive, accurate reporting backed by complete records is both the compliant and the practical path, avoiding the cost and stress of disputes.

How should a business prepare its crypto tax return?

A business prepares its crypto tax return by aggregating complete records from all wallets, exchanges, and protocols, applying a consistent cost-basis method, reconciling against all broker forms received, and having a crypto-experienced tax professional review the result before filing.

The workflow integrates everything covered across this pillar. Complete transaction records feed crypto tax software that computes gains and income under the chosen method. Broker forms are reconciled against this output to catch and resolve discrepancies. DeFi and self-custody activity, which brokers do not report, is added from the business’s own records. Finally, professional review ensures the treatment is correct, especially for the uncertain areas discussed in our DeFi tax events guide. Filing then reflects a complete, reconciled, defensible picture rather than a partial one assembled under deadline pressure.

How does international reporting compare?

Many jurisdictions are introducing crypto reporting regimes, and international frameworks aim to share crypto account information across borders, similar to existing financial-account exchange systems. Businesses operating internationally face an expanding web of reporting obligations.

Beyond domestic broker reporting, international initiatives are extending automatic exchange of information to crypto, meaning a business’s crypto activity in one country may be reported to tax authorities in another. This mirrors the cross-border information sharing already established for traditional bank and brokerage accounts. For internationally active businesses, the implication is that crypto activity is becoming visible to multiple tax authorities simultaneously, raising the stakes for consistent, accurate reporting across jurisdictions, a challenge we examine in our cross-border crypto tax guide and the broader crypto finance hub.

What common reporting mistakes should businesses avoid?

Common reporting mistakes include relying solely on broker forms, ignoring self-custody and DeFi activity, using inconsistent cost-basis methods across platforms, failing to report crypto-to-crypto swaps, and missing income from staking, rewards, and airdrops. Each can trigger a notice or an underpayment.

The recurring theme is incompleteness. A business that reports only what brokers show will omit the substantial activity that occurs in self-custody and DeFi, which no broker reports. Inconsistent cost-basis methods across exchanges produce errors that do not reconcile. Treating swaps as non-taxable, a frequent misconception covered in our capital gains guide, leaves disposals unreported. And forgetting that rewards and airdrops are income at receipt understates taxable income. Avoiding these mistakes requires a single, complete, consistently methodized record that spans every venue and activity.

How does broker cost-basis reporting evolve over time?

Broker cost-basis reporting for crypto is being phased in, meaning early forms may report only gross proceeds while later ones include cost basis. During the transition, businesses must supply their own cost-basis records, because the broker’s figures may be incomplete or absent.

This phased rollout creates a transitional gap that businesses must bridge. In early periods, a broker form may show what a business sold but not what it paid, especially for assets acquired elsewhere or transferred in. The business must fill that gap from its own records to report an accurate gain rather than being taxed on gross proceeds. As cost-basis reporting matures, the forms become more complete, but the obligation to maintain independent records never disappears, because brokers can never see the full picture across self-custody and DeFi. Maintaining complete records throughout this transition is the only reliable approach.

What should a business do upon receiving a tax notice?

Upon receiving a crypto tax notice, a business should review it against its own records, identify the source of any discrepancy, gather supporting documentation, and respond promptly — ideally with a crypto-experienced tax professional. Many notices stem from incomplete cost-basis data rather than actual underpayment.

A notice is often the automated result of a mismatch between a broker form and the filed return, frequently because the broker reported proceeds without cost basis, making a gain look larger than it was. The response is to reconcile the figures using the business’s records, document the correct gain, and reply within the deadline. Panic and inaction both worsen outcomes; a calm, documented response usually resolves the matter. This is precisely why the complete, reconciled records emphasized throughout this pillar are so valuable — they turn a notice from a crisis into a routine clarification.

How does reporting differ for businesses versus individuals?

Businesses generally face more extensive crypto reporting than individuals, because their activity may be treated as business income, they have bookkeeping and audit obligations, and they may receive broker forms across multiple entities and accounts. The underlying transactions are the same, but the reporting context is heavier.

An individual investor reports gains and income on a personal return; a business must integrate crypto into its full financial reporting, potentially across several entities, each with its own broker relationships and forms. Business crypto activity may also be characterized differently — as ordinary business income rather than investment gains — depending on the role crypto plays in operations. This heavier context makes systematic record-keeping and professional support more important for businesses, reinforcing the workflow described throughout this pillar and the accounting alignment covered in our crypto accounting guide.

Frequently Asked Questions