Guides
Written for people who send invoices and do not have a finance department. Everything here is checked against the provision it describes, and dated so you can see how current it is.
GST and Indian invoicing
What the rules require, in plain terms.
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What GST 2.0 changed on your invoices
GST 2.0 moved India to 5% and 18% from 22 September 2025. What to update on invoices, which rate applies across the change, and what stayed the same.
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What a GST invoice must legally contain
The sixteen particulars Rule 46 requires on a tax invoice, which ones people get wrong, and when you issue a bill of supply instead of a tax invoice.
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Invoicing international clients from India
How export of services works under GST, why a Letter of Undertaking saves you the IGST, what an FIRC is for, and the invoice fields overseas clients actually need.
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Proforma invoice, quotation, tax invoice and delivery challan
Four documents that look alike and do different jobs. Which to send when, and why the wrong one creates a tax liability you did not intend.
Getting paid
What to do when an invoice goes unpaid.
Invoicing anywhere
Practice that applies wherever you bill from.