Thanks for your suggestion. I eventually ended up doing more or less what you suggested, albeit slightly differently; I was able to answer that it was employee stock, but when it asked which type it was, instead of answering RSU, I just chose none of the above, which then allowed me to input adjusted cost basis manually. I tested what would happen if I said it was not employee stock, and it went to the same menu, so either way seems to work. I happened to have a few ESPP sales as well, and interestingly enough, when selecting the ESPP type, it does give the user the option to input manual cost basis, unlike for RSUs. So the takeaway is that for some reason, if you want to manually input adjusted cost basis, don't tell TurboTax that they're RSUs.
