Jeff's tax liability for last year was $30,000. Jeff projects that his tax for this year will be only $25,000. Jeff works part time and expects his withholding this year to be $4,000, but the bulk of his income is from self-employment from which there is no withholding. His AGI for last year did not exceed $150,000. How much estimated tax, at a minimum, should Jeff pay for this year to avoid the penalty for underpayment of estimated taxes? How would your answer change if his income exceeded last year's due to a large capital gain at the end of the year? Jeff's tax liability for last year was $30,000. Jeff projects that his tax for this year will be only $25,000. Jeff works part time and expects his withholding this year to be $4,000, but the bulk of his income is from self-employment from which there is no withholding. His AGI for last year did not exceed $150,000. How much estimated tax, at a minimum, should Jeff pay for this year to avoid the penalty for underpayment of estimated taxes? How would your answer change if his income exceeded last year's due to a large capital gain at the end of the year