A GST (Goods and Services Tax) calculator is an online tool that helps businesses, consumers, and tax professionals quickly compute the GST amount included in or to be added to a transaction value — based on the applicable GST rate (5%, 12%, 18%, or 28%) and whether the calculation is tax-inclusive (extracting GST from a total amount) or tax-exclusive (adding GST to a base price). For exclusive GST calculation: GST Amount = Base Price × GST Rate ÷ 100; Total Amount = Base Price + GST Amount. For inclusive calculation: Base Price = Total Amount ÷ (1 + GST Rate ÷ 100); GST Amount = Total Amount – Base Price. In India, GST was introduced on July 1, 2017, replacing multiple central and state indirect taxes. For capital market participants, GST is relevant on brokerage fees (18% GST applies), advisory services, mutual fund distributor commissions, and financial product transaction charges. Ventura's GST calculator helps investors and traders accurately compute the GST component of their transaction costs — ensuring correct tax credit claims for GST-registered business entities and precise cost calculations for individual investors tracking their total transaction expenses including brokerage and ancillary charges on equity, F&O, and other financial market trades.