Form 1099-DA: Available by February 17, 2026.

Form 1099-DA cost basis reporting for "covered securities" transactions starting January 1, 2026 In addition to gross proceeds reporting, digital asset brokers are required to report cost basis on "covered securities" from digital asset dispositions on Form 1099-DA for users who have reportable transactions starting January 1, 2026. This requirement applies to dispositions of digital assets that are classified as "covered securities"; cost basis must be reported on Form 1099-DA.

OKX is NOT obligated to report CeDeFi trades to the IRS and issue Form 1099-DA. It's solely users' responsibility to keep track of the cost basis of crypto assets within a self custody wallet and report realized gains / losses on income tax returns.