How can I fix an incorrect cost basis on my 1099 Form?
Last updated: 12 August 2026
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If the cost basis information that is reported on your Form 1099-B is incorrect, you can report a correction to the IRS using Form 8949.
Instructions: https://www.irs.gov/forms-pubs/about-form-8949
*Note: This is provided for informational purposes only. etoro does not provide tax or legal advice. You should consult with a tax or legal professional to address your particular situation.*
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