Green, a calendar-year taxpayer, is preparing a personal statement of financial condition as of April 30, 2006. Green’s 2005 income tax liability was paid in full on April 15, 2006. Green’s tax on income earned between January and April 2006 is estimated at $20,000. In addition, $40,000 is estimated for income tax on the differences between the estimated current values and current amounts of Green’s assets and liabilities and their tax bases at April 30, 2006. No withholdings or payments have been made towards the 2006 income tax liability. In Green’s April 30, 2006 statement of financial condition, what amount should be reported, between liabilities and net worth, as estimated income taxes?