Investors & landlords

OK, I thought that would be the case.  The entire value of your RSU has been rolled into your W2 wage bucket.  That amount is FMV of your stock times the number of shares in your award.  That sets your cost basis for every transaction you make after vesting day.   Your future per share cost basis is the price of the stock at the close of day of the vest.  Your example is quite simple, so that's it, and you don't enter any numbers for the vest in TurboTax.  Your brokerage and company has already done it for you.

Then for your sale of the 75 shares, you would use the stock price at close of vest day * 75 as your cost basis.  In your case, when you enter that sale, TT will calculate a short term loss.  Sorry.

But usually it's not that simple.  Calculating cost bases can be quite difficult.  If you have say, 75 shares of that stock in your brokerage account from last year, you would use the cost basis for that stock in your sale of 75 shares, because you have to sell the oldest stock first.  If the older stock was a result of an RSU that was granted  2 years before your sale, your cost basis for this sale will be different. If there's anything that complicates your example above, I recommend you get a CPA to look it over.  

And you should record all your pertinent information:  Price of the stock at the close of vesting day, vesting date, award grant date award size, vesting size, and if non-zero, award cost.   If you go over a year, you're gonna need it.