You are correct. The cost basis of RSUs is the value (stock price) when they are issued/vest. This amount is added to box 1 of your W-2; however, that information is not passed on to brokers. You will have to determine the value on the date they were issued and make an adjustment to the cost basis when you enter your 1099-B. As long as the value was added to your W-2, you should answer No when asked if the stock was company stock. Enter the 1099-B as reported, and as you go through the 1099-B entry screens you will see an option to adjust your cost basis.