GST fails its biggest promise - formalisation of economy The report, however, noted that over the long-term, GST will lead to more formalisation of the economy A year into implementation, goods and services tax (GST) has not delivered on the promised formalisation of the economy as yet, while the glitches in the one-nation-one-tax regime has increased the demand for cash, says a foreign brokerage report. "The GST regime was originally associated with formality. But so far, in our view, it has not been able to live up to that promise. nor has it brought down the demand for cash which has in fact only gone up," British brokerage HSBC said in a report today. The report, however, noted that over the long-term, GST will lead to more formalisation of the economy. The GST was implemented from July 1, 2017 and since then it has undergone multiple changes including lowering of tax rates of many items and an increase in the numbers of cesses and the levy rate, which was suppo