Crypto exchange tax report incomplete: what to do
Correct an incomplete crypto exchange report with your own records before you file. The IRS asks about digital assets on Form 1040 or Form 1040-SR.
Vahe HakobyanEditor-in-chief
Updated Oct 6, 20263 min readFact-checked
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An exchange report covers only what that platform knows, and the IRS matches the return you file against the data it receives.
What should I do first?
Do not file the incomplete exchange report as if it were complete. Compare it with your own records and fill the gaps first. The IRS treats digital assets as property, so a missing sale still must be reported, and a loss may be deductible.
Which transactions does the report miss?
An exchange report usually covers only what happened on that platform in the tax year.
How do I fill in missing records?
Missing paperwork does not excuse a missing number. Rebuild each entry from your own records and report it under the IRS digital asset rules.
What penalties and tax years apply?
Incorrect crypto reporting can lead to an IRS notice, a penalty, or an audit, because the agency matches the data it receives against your return. What an exchange must report depends on the tax year and on broker reporting rules that phase in over time.
Frequently asked questions
Use your own records. Saved CSVs, bank statements, and wallet history can rebuild the missing entries.
File Form 1040-X if the missing items change your tax or your refund.
Rebuild it from old statements, bank transfers, and wallet history. Without proof of what you paid, the IRS may set your basis at zero.
Usually not, when you move the same crypto between wallets you control. A trade for another crypto is taxable.
