GST invoicing built into the ERP
GST tax invoices with GSTIN, HSN codes, CGST and SGST or IGST chosen from the customer's state, the amount in words, and an e-invoice JSON file for the IRP portal.
An invoice that is right the first time
In ARUKZ ERP the invoice is created from the sales order, so the customer, the items, the quantities and the prices are already there. What the system adds is the GST detail that is easy to get wrong by hand.
What prints on the tax invoice
- The title Tax Invoice, your GSTIN and the customer's GSTIN
- Place of supply, with the state code
- HSN or SAC code on every line
- CGST and SGST, or IGST, with the rate and amount for each
- The total in words
- Amounts in the Indian format, for example ₹1,25,000.00
CGST and SGST, or IGST
You do not choose the tax type on each invoice. Each product carries a GST rate. If the customer's state is the same as yours, the invoice splits that rate into CGST and SGST. If the customer is in another state, it switches to IGST at the full rate. The same rule applies to purchases.
For an 18% item sold for ₹9,000:
| Customer is in | Tax on the invoice | Total |
|---|---|---|
| Your state | CGST 9% ₹810 + SGST 9% ₹810 | ₹10,620 |
| Another state | IGST 18% ₹1,620 | ₹10,620 |
CGST, SGST and IGST explained covers the rule in more detail.
HSN codes
Each product has an HSN code field that accepts 4, 6 or 8 digits. Enter it once on the product and it prints on every quotation and invoice. See HSN codes for auto parts for the headings component makers use most.
E-invoice JSON
For a posted invoice you can download a JSON file in the e-invoice format and upload it on the Invoice Registration Portal (IRP). Before it builds the file, ARUKZ ERP checks the things the portal rejects most often and tells you what is missing: a GSTIN, an address, an HSN code, or a tax type that does not match the customer's state.
A new company starts ready
When you sign up, the workspace already has rupees as its currency, GST taxes for sales and purchases, the inter-state rule that switches to IGST, and a chart of accounts. You do not configure taxes before raising your first invoice.
What it does not do yet
- It does not send invoices to the IRP directly or fetch the IRN and QR code for you. You upload the JSON file on the portal.
- It does not generate e-way bills.
- It does not file GSTR-1 or GSTR-3B. Your accountant files returns from the sales and purchase registers.
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Last updated 12 October 2026