The 1099-B must be entered. The 1099-B is entering the cost basis that they know, not reality. You don't enter 0, you enter that actual cost basis.
When the RSU is vested or when sold. This is either one but not both. You made the option with your employer for how to report your RSU.
If the W2 showed the RSU when vested, you paid the tax then. Locate the portion that matches up with the shares you sold and enter that basis.
I want to urge you to create a financial notebook that is kept separate from your tax return. Keep it safe and each year, add your year-end statements from all your financial accounts plus a copy of your W2’s. This will protect you down the road as proof of your basis in your various investments. As you go through life, rollovers, RSU sales, and more will be captured for you.
@brindusa67
**Say "Thanks" by clicking the thumb icon in a post
**Mark the post that answers your question by clicking on "Mark as Best Answer"
