Businesses, especially MSMEs and startups, struggled not just with compliance but also with determining the right tax rates for their products. The GST 2.0 reforms, effective from September 22, 2025, bring substantial changes to the tax rates on goods and services across India. GST Mega Reforms: Don’t Miss This Before Applying New Tax Rates :Section 14 of CGST Act, 2017 lays down the time of supply rules when there is a change in GST rate. From 22nd Sep 2025, new GST rates apply on many goods and services. So, if your supply, invoice, and payment dates fall around this cut-off, Section 14 decides the applicable tax rate.