Crypto's Anonymous Era Just Ended: Form 1099-DA Now Tells the IRS What You Sold and Its Cost-Basis Math May Not Match Yours - 24/7 Wall St.

**Tax Reporting for Digital Assets Hits a New Phase**

The rollout of Form 1099-DA marks a decisive shift in how the IRS tracks cryptocurrency activity. Brokers and exchanges are now required to report gross proceeds from digital asset sales directly to the tax authority, replacing the era of self-declared reporting. This third-party data gives the IRS a baseline for matching against individual returns, making underreporting far easier to detect.

**The Cost-Basis Catch**

The complexity lies in the cost-basis figures shown on the form. A broker's calculation may not match the taxpayer's own records. Discrepancies can arise from different accounting methods—such as FIFO versus specific identification—or from gaps in tracking when assets are moved across wallets, received as airdrops, or acquired through hard forks. When the IRS's data shows a higher gain than the investor's math, it can trigger a CP2000 discrepancy notice or a fuller audit.

**What to Watch**

For the broader market, this means compliance friction is becoming a permanent cost of investing in digital assets. Investors should carefully reconcile their own transaction history against Form 1099-DA before filing, paying close attention to which accounting method the platform used. As third-party reporting expands, the burden is shifting toward maintaining precise, independent records for every trade, transfer, and acquisition event.