- The implementation of GST in India will increase costs for investors in several ways. The service tax rate that investors pay has increased from 15% to 18% with GST, and investors do not receive setoff benefits to offset this tax. Investors will also still pay stamp duty and securities transaction tax. - Other investment-related charges like depository maintenance and transaction fees that were previously taxed at 15% will now be taxed at the higher 18% GST rate without additional benefits for investors. Delayed payment charges on broker loans will also be subject to an 18% GST tax on interest amounts. - While GST may boost India's GDP and company profits over the long run,