Coinbase 1099 DA Forms: What the IRS Gets and What You Must Do

Crypto tax season is here, and Coinbase is shaking things up for the 2025 reporting cycle. The major exchange has started issuing Form 1099 DA to track reportable digital asset sales and exchanges. Coinbase automatically sends a copy of this form directly to the IRS while making another copy available to the customer inside their account.

While getting a tax form from your exchange feels like the heavy lifting is done, traders should not assume the math is finished. Form 1099 DA provides the IRS with specific transaction details, but it may not tell the whole story of your overall portfolio activity. Users often trade across multiple platforms, use decentralized exchanges, or transfer tokens between cold storage wallets, which means exchange forms rarely capture the complete picture.

Tax experts advise users to double check their transaction histories against external portfolio trackers before submitting returns. Missing trades from other platforms or failing to account for gas fees can trigger audits or incorrect tax calculations. Keep a close eye on your records as the filing deadline approaches to avoid any nasty surprises from the tax agency.