
Delivery challan under GST: when to use one instead of a tax invoice
Rule 55 cases (job work, approval, lots, art works, liquid gas), challan contents and copies, e-way bill rules, conversion to invoice and job work time limits.
Read the guide →How to make invoices, quotations, challans, credit notes and get them right the first time.

Rule 55 cases (job work, approval, lots, art works, liquid gas), challan contents and copies, e-way bill rules, conversion to invoice and job work time limits.
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Quotation vs estimate vs proforma vs sales order, validity and terms, converting without re-typing, GST on service advances, and a 6-step contractor flow.
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Section 34 explained for small businesses: when to issue a credit note or debit note, the 30 November deadline, effect on GSTR-1 and the buyer's ITC.
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When an e-way bill is needed (₹50,000, job work), Part A and Part B, validity by distance, who generates it, extension, cancellation, exemptions.
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Who must generate e-invoices, how IRN and QR codes work, IRP portals, the 30-day reporting window, penalties.
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Rule 46(b) explained: consecutive unique invoice numbers per financial year, the 16-character limit, multiple series, resetting on 1 April.
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Understand the difference between a tax invoice, bill of supply and proforma invoice under GST, plus receipt vouchers, delivery challans and export invoices.
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All the mandatory fields on a GST tax invoice, B2B vs B2C differences, copies, time limits to issue, a worked CGST/SGST example and the mistakes that block your.
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