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GST on items and ledgers

An invoice’s GST comes from two places: the item (its HSN and rate) and the party (its GSTIN and state).

On stock items

On the item: GST Applicable, HSN / SAC Code, GST Rate %, Taxability and Compensation Cess %.

On customers and suppliers

On a party ledger: GSTIN and, under More Details, Registration Type (regular, composition, unregistered, consumer, SEZ…) and State (place of supply). The state decides local or inter-state tax.

RuleA GSTIN must be 15 characters with a correct check digit, and the PAN on the ledger must match the PAN inside it.

Tax ledgers

You do not need to create CGST, SGST or IGST ledgers. The first GST invoice creates them under Duties & Taxes: Output CGST, Output SGST, Output IGST, Output Cess for sales, Input CGST, Input SGST, Input IGST, Input Cess for purchases, and separate (RCM) ledgers for reverse charge. Each is marked with its tax head, so the returns find it whatever you rename it to.

GST masters

MasterFor
HSN / SAC CodesA list of HSN and SAC codes with descriptions and rates to pick from.
GST ClassificationsNamed sets of GST details (HSN, rate, taxability) to apply to many items or ledgers at once.
List of Masters with GST on: HSN / SAC Codes and GST Classifications appear
With GST on, the GST masters appear in List of Masters.