ARM 42.23.608. BASIS FOR NOT WAIVING THE QUARTERLY ESTIMATED TAX UNDERPAYMENT INTEREST

(1) A taxpayer is not immune from the quarterly estimated payment requirement if the previous year's tax liability did not equal or exceed $5,000. (2) A taxpayer is not immune from the quarterly estimated payment requirement simply because it did not know its tax liability until the end of the year. (3) Lack of knowledge about the estimated payment requirement is not a basis for having the underpayment interest waived.