How to make a GST invoice in Tiram: a step-by-step guide

A valid GST tax invoice needs an invoice number and date, your GSTIN and business details, the buyer's name and GSTIN (for B2B), a description of goods or services with HSN/SAC code, quantity and unit, taxable value, the applicable GST rate and amount split by tax type, and the place of supply. Missing any of these is what typically causes CA queries or GSTR-1 upload rejections later — Tiram builds every field into the invoice form so none of it is left to memory.

1. Open Invoices → New invoice and search for the customer by name, phone, or code (or add a new one inline). 2. Confirm the warehouse the sale ships from, the invoice date, and due date. 3. Set payment mode (cash, card, UPI, bank transfer, or other) and, if the customer buys on credit, payment terms. 4. Choose the place of supply — this single field decides whether the invoice splits CGST+SGST or charges IGST. 5. Add line items by searching each product; HSN, MRP, unit, and GST% pull in automatically, with quantity, price, and discount editable per line. 6. Review the auto-calculated subtotal, taxable amount, CGST/SGST or IGST, and grand total, then Save draft or Preview & save to issue it.

GST splits into CGST+SGST for a sale within the same state as your registered place of business, and IGST for a sale to a different state. Tiram's place-of-supply field on the invoice — a plain dropdown of India's states and union territories — is what triggers the split; get it wrong and the tax type is wrong even if the total tax amount happens to match, which is exactly the kind of mismatch a GSTR-1 validation pass catches before you upload.

Save draft keeps an invoice editable and excluded from reports and GSTR-1 until you're ready. Preview & save finalizes it — allocates the next invoice number in sequence, locks the line items, and includes it in every downstream report from that point on. This draft-then-issue split lets a cashier build a bill during a sale and a supervisor confirm it before it becomes a permanent GST record.

GST invoicing itself is available on every Tiram plan. On the cloud app, annual invoice volume is capped by plan — see the table above — with a grace buffer before hard-blocking so a month-end rush doesn't stop billing mid-sale. The offline Windows/Mac desktop app and Quick Bill counter sales are never volume-capped on any plan, because a desktop counter shouldn't be throttled by a cloud-tier limit.