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Ask A CPA - Capital Gains & Losses

Form 1099-B: Cost Basis Categories

Category A = Covered = Cost basis is reported to the IRS Category B = Non-Covered = Cost basis is Not reported to the IRS Category C = Supplemental = Proceeds Not reported to the IRS Stock Options fall into Category C which is supplemental information that is supplied to customers when available, but is not reported to the IRS.

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