I'm thoroughly confused what cost basis to use for my schedule D based on the 'new' form 3922 "Transfer of Stock Acquired Through an Employee Stock Purchase Plan Under Section 423(c)".
Form 3922: Box 5 "Exercise Price Per Share" = $4.9385 Form 3922: Box 8 "Exercise Price Using Grant Date FMV" = $5.0745
Since the same-day (exercise + sell) transaction only involved 980 shares, there is only about a ten-dollar difference in the taxable result; but that doesn't change my confusion as to WHICH 'cost basis' to properly use when reporting to the IRS.
Had I NOT received Form 3922 from my employer, I would have used a cost basis of $4.9385/share (minus minor fees).
Now that I have received Form 3922, I am not sure if I should use that cost basis (which I used in years past), or the "FMV cost basis" of $5.0745.
Since my net, from E-Trade (after commission & fees) was $5,938.37, I guess I can 'work backward' to an estimated cost basis ... but my question is what's the 'right' thing to report?
For ESPP shares, do I report on schedule D a cost basis of the exercise price (box 5 of Form 3922) or the FMV exercise price (box 8 of Form 3922)?