Option write, expires:
Since you are short, the Date Acquired shows the date of expiration,
Enter "Expired" in 8949 column e) cost, but Turbo Tax won't let you do that so cost is zero.
Your gain is the amount you received and it is a Short Term Capital Gain.
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Note: For option short sales with a loss, Date Disposed is one business day after Date Acquired (options settle in one day). But if you have a gain, Date Disposed is equal to Date Acquired.
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there's no issue with a cost of zero. If TurboTax warns, ignore that.
@CA6
