Intra-state sale (seller and buyer in the same state): the tax splits equally into CGST and SGST. On a sale of ₹80,000 at 18%, that is CGST ₹7,200 and SGST ₹7,200, an invoice total of ₹94,400.
Inter-state sale: the whole tax is IGST. The same sale to a buyer in another state carries IGST of ₹14,400, and the invoice total is still ₹94,400.
Working out the tax payable from the practical above:
| CGST ₹ | SGST ₹ |
|---|
| Output tax on sales | 7,200 | 7,200 |
| Less: input tax credit on purchases | 4,500 | 4,500 |
| Payable | 2,700 | 2,700 |
Total GST payable is ₹5,400. In Tally, the tax ledgers sit under Duties & Taxes, with the type of tax set in the ledger, and the returns are prepared from the GSTR-1 and GSTR-3B reports.
Set-up order matters. Enable GST for the company first, through the features screen, and enter the GSTIN. Then set GST details on the stock items or sales and purchase ledgers. Vouchers passed before GST is enabled will not calculate tax, and that is the usual reason a student's tax ledgers show nothing.
For the Gulf. The same structure handles VAT in the UAE, where the standard rate is 5%: the VAT ledgers go under Duties & Taxes, and output VAT less input VAT gives the amount payable.