"The IRS issued Notice 2019-11 on Wednesday, providing a waiver of the addition to tax under section 6654 of the tax code for the underpayment of estimated income tax for certain individuals who would otherwise be required to make tax year 2018 estimated income tax payments on or before Jan. 15, 2019. The waiver, though, is limited to individuals whose total withholding and estimated tax payments equal or exceed 85 percent of the tax shown on the return for the 2018 taxable year."