The Krishi Kalyan Cess (KKC), effective June 1, 2016, is a 0.5% tax levied on all of the existing taxable services. Input tax credit will be available against this charge, meaning that any taxes paid on the inputs of the final service you are providing will be available to you as a tax credit.
QuickBooks supports this tax with a 15% ST tax code, which is comprised on 14% service tax, 0.5% Swachh Bharat Cess (SBC), and 0.5% Krishi Kalyan Cess.