Is GST Compulsory in Export Business? In many countries, including India, a single GST number is generally sufficient for conducting exports of different products. The Goods and Services Tax (GST) number, also known as the GSTIN (GST Identification Number), is a unique identification number assigned to registered taxpayers under the GST regime. When exporting different products, you can use the same GST number for all your export transactions. The GST number serves as a common identifier for you