It probably is reported on your W-2. If your company did not report your RSUs in Box 14 or in any supplemental information with your W-2, that does not mean that the income from them was not included in your wages and that the tax withheld from any sales was not also included in your W-2. Have you verified with your employer that the income reported on our W-2 does not include the value of your vested RSUs? Unless it is a private corporation and the stock is non-transferable, this should be on your income in the year vested.
You do not want to manually adjust your Line 1 amount, because the RSUs would also potentially impact Lines 3, 5, and 16 and the taxes withheld should be reported on Lines 2, 4, 6, and 17. While you could determine the correct wages to report, you would not have a way of knowing where the withheld taxes went.
I would look for a pay stub from the vesting date of your RSUs. If you cannot find a paystub for the vesting date, and there does not seem to be any unusual bumps from one paycheck to another, and you cannot contact the payroll provider to ensure the RSUs are not included on your W-2 and they are not able to offer you a corrected W-2, you can report your income from your RSUs in Federal > Less Common Income > Miscellaneous Income > Other income not already reported on a Form W-2 or Form 1099. This will ensure the additional taxes for Medicare and Social Security are also being assessed to this compensation.
@David5555
