The estimated tax penalty can be waived for you, if your 2018 federal income tax withholding and estimated tax payments fall short of your total tax liability for the year; however, there is a catch: its is only waived, if you paid at least 85 percent of total tax liability during the year through federal income tax withholding, quarterly estimated tax payments or a combination of the two.
Typically, you must pay 90 percent to avoid a penalty.The waiver computation will be reflected in a revised Form 2210, Underpayment of Estimated Tax by Individuals, Estates and Trusts, and instructions.