GST Calculator app provides easy calculation of GST based amount tax inclusive or exclusive tax amount. This app gives following result as calculation: - GST Tax Calculator - Total Bill Amount - GST Tax Rate - GST Tax Inclusive or Exclusive What is the Goods and Services Tax (GST)? Ans. It is a destination based tax on consumption of goods and services. It is proposed to be levied at all stages right from manufacture up to final consumption with credit of taxes paid at previous stages availab