The IRS has announced that it is waiving the estimated tax penalty for many taxpayers whose 2018 federal income tax withholding and estimated tax payments fell short of their total tax liability for the year. The relief, announced in IR-2019-03, is prompted by changes in the Tax Cuts and Jobs Act (TCJA). This waiver covers taxpayers whose total withholding and estimated tax payments are equal to or greater than 85% of their taxes owed. For waiver purposes only, this new relief lowers the 90 percent threshold to 85 percent. This means that a taxpayer will not owe a penalty if they paid at least 85 percent of their total 2018 tax liability. If the taxpayer paid less than 85 percent then they are not eligible for the waiver and the penalty will be calculated as it normally would be using the 90 percent threshold. Refer to Notice 2019-11 for further details. The waiver computation will be integrated into a future update of UltraTax/1040 including the revised Form 2210 once released by the IRS.