Sales tax – It was good news that state tax revenue outstripped estimates in December. The best showing was made by the individual income tax. After the 2012 cuts, however, revenue from that tax will not grow in 2013. To cope with this situation, Gov. Sam Brownback may ask lawmakers to extend the “temporary” 1 percent sales tax that is scheduled to expire this year. The Kansas Chamber of Commerce and Americans for Prosperity, both Koch-backed, say they will support an extension if the money is used to further reduce income taxes. This is an irresponsible position. If the governor is going to ask for a sales-tax extension, it should be to balance the state’s budget and keep education and social services intact, not further reduce income taxes.