City, county and district sales tax rate changes taking effect each quarter with the new combined rate, ballot measures that passed or failed on sales tax, special district and transit tax additions, grocery, clothing, diaper and essential item exemption changes, online marketplace and delivery fee tax changes, vehicle, restaurant and lodging tax changes by city, rate changes that split a metro so one side of the street is cheaper, state rate changes and tax cuts and refund and overcharge rules when a retailer collects the wrong rate, with the jurisdiction first and the old and new rate in the title.