Form 1099-DA Explained: The New Crypto Broker Form

For years, the defining feature of US crypto tax was that the IRS had almost no independent record of what you did. That is over. Form 1099-DA, officially titled Digital Asset Proceeds From Broker Transactions, means the agency now receives a parallel set of numbers from your exchange, and the interesting question has shifted from what you report to whether what you report matches.

What the form is

Form 1099-DA is an information return filed by brokers to report digital asset proceeds from broker transactions, sent both to you and to the IRS. It is the digital asset counterpart to the 1099-B that has covered securities for decades.

The IRS's digital assets page sets out the phase-in in two steps. Brokers must report gross proceeds for transactions effected on or after 1 January 2025. Brokers must report basis on certain transactions effected on or after 1 January 2026. Two transitional relief notices, Notice 2024-56 and Notice 2024-57, accompany the regime.

That two step structure is the single most important thing to understand about the form, and it is where nearly all of the practical trouble lives.

Why the proceeds figure is not your gain

A 1099-DA showing 400,000 dollars of gross proceeds does not mean you made 400,000 dollars. It means 400,000 dollars of value left the account through dispositions. Your gain is proceeds minus your cost basis, which for the first phase of the regime is a number the broker was not required to give you.

This matters because the IRS receives the proceeds figure whether or not it receives the basis figure. A taxpayer who ignores a 1099-DA because "I lost money on all of that" has left the agency holding a large unexplained number with nothing on the return to match it to. The mismatch, not the underlying tax, is what generates the notice.

Why the basis box may be wrong even when it is filled in

Basis reporting starting for transactions from 2026 does not mean the reported basis will be complete. A broker can only know what it can see. Coins that arrived from a self custody wallet, from another exchange, from a hard fork, from an airdrop, or from mining rewards have a history the broker never observed.

This interacts directly with Revenue Procedure 2024-28, under which you track cost basis per wallet or account rather than pooling everything together. If your own records pool across venues while the broker reports per account, the two will not agree, and you are the one who has to explain the difference.

Receiving no form changes nothing

The IRS states the taxpayer's position plainly: if you have digital asset transactions, you must report them whether or not they result in a taxable gain or loss. Decentralised exchanges, peer to peer trades, self custody activity and non US venues can all produce fully taxable disposals with no form attached to them.

Every Form 1040 carries a digital asset question you must answer yes or no, and it is not conditional on receiving a broker form.

What to do with the form you receive

• Reconcile, do not transcribe. Match each line on the 1099-DA to the corresponding disposal in your own records. The point is to find the ones that do not match.
• Check for transfers counted as sales. Moving coins to your own wallet is not a disposal, but a broker seeing an outbound transfer has limited information about where it went.
• Supply your own basis where the form has none or has it wrong. You report your actual basis. The form is the IRS's copy, not the final word on your numbers.
• Keep the acquisition records that support your figure. If you differ from the broker, the difference has to be evidenced.

Where it lands on the return

Disposals go on Form 8949, split short term and long term, and total onto Schedule D. Short term gains, on assets held one year or less, are taxed at ordinary rates up to 37%. Long term gains are taxed at 0%, 15% or 20% depending on your taxable income and filing status. Losses offset gains, and up to 3,000 dollars of net losses can reduce ordinary income each year with the rest carried forward. Crypto you earned rather than bought is ordinary income at its value on receipt and goes on Schedule 1, or Schedule C if it is a business.

Our guide to crypto and Schedule D covers the summary return, and US crypto tax covers the full picture including which other forms may apply.

General information, not tax advice. Rules change and depend on your circumstances. Confirm the current position with the relevant tax authority or a qualified tax professional.

Practical Steps to Manage Your Crypto Tax Records

Keeping thorough and organised records is the foundation of accurate crypto tax reporting, especially when you receive a broker form like the one discussed above. Start by creating a dedicated folder, either digital or physical, for each tax year. Within that folder, store all exchange statements, wallet addresses, transaction hashes, and any correspondence from brokers. If you use multiple platforms, consider consolidating your records into a single spreadsheet or accounting tool that can import data from various sources. The goal is to have a complete trail from acquisition to disposal, including dates, amounts, and counterparties. This becomes invaluable when you need to verify figures on a broker form or substantiate your own calculations. Remember that the broker's report is only one piece of the puzzle; your personal records may capture transactions that the broker cannot see, such as transfers between your own wallets or activity on decentralised exchanges. By maintaining meticulous records, you reduce the risk of errors and make the reconciliation process far less stressful.

Reconciling Your Records with Broker Reports

When you receive a broker form, do not assume it is correct. Instead, treat it as a starting point for your own review. Begin by comparing each transaction listed on the form with your own records. Look for discrepancies in dates, amounts, and descriptions. Pay special attention to any transfers that might have been misclassified as sales, as this is a common issue. If you find a mismatch, investigate the cause. It could be a timing difference, a fee that was not accounted for, or an error on the broker's part. Document your findings and keep notes on why you believe your figures are accurate. This documentation will be essential if you need to explain the difference to a tax professional or if the tax authority raises questions. Remember that the broker's form is not the final word; your actual tax liability is based on your true economic gain or loss, which you must calculate using your own records.

Documenting Assumptions and Unanswered Questions

Throughout the tax preparation process, you will encounter situations where the correct treatment is unclear. For example, you might be unsure about the basis of coins received from a fork or airdrop, or you might have questions about the tax treatment of a complex transaction. In such cases, it is wise to document your assumptions and the reasoning behind them. Write down the facts, the question, and the conclusion you reached, along with any sources you consulted. This documentation serves two purposes: it helps you stay consistent if you need to revisit the issue, and it provides a clear explanation if a tax professional or the tax authority asks about your position. Do not rely on memory; write everything down. If you have unanswered questions, make a list and seek answers from reliable sources, such as official guidance or a qualified tax advisor. It is better to address uncertainties before you file than to face an audit later.

Reviewing Your Return Before Filing

Before you submit your tax return, take the time to review it thoroughly. Check that all income and gains are reported, and that you have not missed any deductions or credits. Pay particular attention to the digital asset question on your return, and ensure that your answer is consistent with your activity. If you received a broker form, verify that the figures on your return match the form, or that you have a documented reason for any differences. Also, review your calculations for any obvious errors, such as transposed numbers or incorrect dates. It can be helpful to have a second person review your return, as a fresh set of eyes may catch mistakes you overlooked. Finally, make sure you have all necessary supporting documents in case you need to provide them later. A little extra time spent on review can prevent costly mistakes and reduce the likelihood of an audit.

Knowing When to Seek Professional Help

While many taxpayers can handle their own crypto tax reporting, there are situations where professional help is advisable. If your transactions are numerous or complex, if you have received a notice from the tax authority, or if you are unsure about the tax treatment of a particular transaction, it may be worth consulting a qualified tax professional. A professional can help you navigate the complexities of crypto taxation, ensure that you are in compliance, and provide peace of mind. They can also assist with the reconciliation process and help you document your positions. When choosing a professional, look for someone with experience in digital assets and a good reputation. Ask about their fees and how they handle crypto-specific issues. Remember that the cost of professional advice is often less than the cost of an audit or penalties. If you decide to seek help, gather all your records and documentation beforehand to make the process as efficient as possible.

Organising Your Crypto Tax Records

Maintaining a well-structured record-keeping system is the cornerstone of accurate crypto tax reporting, especially when you receive a broker form like the one discussed above. Start by creating a dedicated folder, either digital or physical, for each tax year. Within that folder, store all exchange statements, wallet addresses, transaction hashes, and any correspondence from brokers. If you use multiple platforms, consider consolidating your records into a single spreadsheet or accounting tool that can import data from various sources. The goal is to have a complete trail from acquisition to disposal, including dates, amounts, and counterparties. This becomes invaluable when you need to verify figures on a broker form or substantiate your own calculations. Remember that the broker's report is only one piece of the puzzle; your personal records may capture transactions that the broker cannot see, such as transfers between your own wallets or activity on decentralised exchanges. By maintaining meticulous records, you reduce the risk of errors and make the reconciliation process far less stressful. When you receive a broker form, do not assume it is correct. Instead, treat it as a starting point for your own review. Begin by comparing each transaction listed on the form with your own records. Look for discrepancies in dates, amounts, and descriptions. Pay special attention to any transfers that might have been misclassified as sales, as this is a common issue. If you find a mismatch, investigate the cause. It could be a timing difference, a fee that was not accounted for, or an error on the broker's part. Document your findings and keep notes on why you believe your figures are accurate. This documentation will be essential if you need to explain the difference to a tax professional or if the tax authority raises questions. Remember that the broker's form is not the final word; your actual tax liability is based on your true economic gain or loss, which you must calculate using your own records. Throughout the tax preparation process, you will encounter situations where the correct treatment is unclear. For example, you might be unsure about the basis of coins received from a fork or airdrop, or you might have questions about the tax treatment of a complex transaction. In such cases, it is wise to document your assumptions and the reasoning behind them.