It seems like I owe about 30K in taxes for 2020 due to the long term RSU gains when I sold the shares in May 2020. From TurboTax, my total withholding should be 60K in 2020, but my employer only withheld 30K so the RSU sell incurred additional tax liability that was not accounted for which caused such high underpayment penalty.
Am I eligible for the first time underpayment abatement to waive the $450 penalty fee?
