1099-DA Cost Basis Wrong or Missing: How to Fix It Before You File
Is your 1099-DA cost basis blank, zero, or wrong? Learn why it happens, how to reconstruct your basis, and how to report the correction before filing.
In-depth guides and expert analysis on tax forms for crypto investors and tax professionals.
Is your 1099-DA cost basis blank, zero, or wrong? Learn why it happens, how to reconstruct your basis, and how to report the correction before filing.
Form 1099-DA instructions for every box, including proceeds, cost basis, dates, asset details, transfer fields, and where each item goes on Form 8949.
1099-DA vs 1099-B explained: see which assets each form covers, how cost basis and wash sales differ, and what to do if you received both before filing in 2026.
Got a Coinbase 1099-DA? Learn what Coinbase reported to the IRS, why gross proceeds look high, how to fix missing basis, and what to do before filing.
Learn how to report Form 1099-DA on Form 8949, carry the totals to Schedule D, fix missing basis, and answer the Form 1040 digital asset question.
Kraken 1099-DA guide: see what Kraken reports to the IRS, why cost basis may be missing, and how to reconcile the form before you file without overpaying.
Got multiple 1099-DA forms after moving crypto between exchanges? Match transfers, restore cost basis, and report the right taxable gain without overpaying.
Robinhood 1099-DA guide: learn what Robinhood reported to the IRS, why you may still get a 1099-B, how to check cost basis, and how to file correctly.
Amended crypto tax return guide: how to file Form 1040-X to fix unreported crypto, missed cost basis, or a wrong 1099-DA, plus deadlines and penalty risk.
Do you need to file FBAR or Form 8938 for foreign crypto exchanges? Learn the thresholds, deadlines, and penalties for 2026.
Step-by-step: report crypto on Form 8949 and Schedule D for 2026. Real examples, the mistakes the IRS flags, and when a crypto CPA should file it.