Kold Corporation estimates that its 2018 taxable income will be $900,000. Thus, it is subject to a flat 34 percent income tax rate and incurs a $306,000 tax liability. For each of the following independent cases, compute the minimum quarterly estimated-tax payments that will be required from Kold to avoid an underpayment penalty.

a. Taxable income for 2017 was ($100,000). Kold carried back all its loss to prior years and exhausted the entire net operating loss in creating a zero liability for 2017.

b. For 2017, taxable income was $200,000, and tax liability was $68,000.

c. For 2016, taxable income was $2 million, and tax liability was $680,000. For 2017, taxable income was $200,000, and tax liability was $68,000.