Invoice format for Indian businesses

What an invoice does

An invoice is the document that turns a sale into money owed. Once you hand it over, the customer's ledger in your books shows a debit and the customer's books show you as a creditor. It is also the paper both sides go back to when there is a dispute over rate, quantity or payment.

In India most businesses registered under GST must issue a tax invoice in the format the rules lay down. That format is covered in detail on the GST invoice format page. This page covers the invoice in general: the parts every bill should have, how to lay them out so the customer reads them quickly, and the mistakes that lead to late payment.

Sample invoice format

The sample uses made-up details. Switch between the Classic, Modern and Compact layouts, Print / PDF it on A4, or print a Blank template to fill by hand. Open in editor loads it into the free invoice generator, where you type straight onto the page and GST, totals and the amount in words are worked out for you.

What the format must contain

• Seller name, address and GSTIN
• The word Invoice or Tax Invoice
• Invoice number (unique in the financial year)
• Invoice date
• Buyer name, address, state and GSTIN
• Ship-to address if different
• Item description, HSN/SAC code
• Quantity, unit and rate
• Discount and taxable value
• GST rate and amount (CGST + SGST or IGST)
• Grand total and amount in words
• Due date and payment terms
• Bank account / UPI details
• Signature of the seller

The parts of a good invoice

1. Header: your business name, address, phone, GSTIN (if registered) and logo. The word "Invoice" or "Tax Invoice" should be clearly visible.
2. Invoice number and date: a running series that never repeats within a financial year, such as INV/26-27/0145.
3. Bill to and ship to: the buyer's name, address, state and GSTIN. If goods go to a different site, show both.
4. Item lines: description, HSN or SAC code, quantity, unit, rate, discount and taxable value.
5. Tax and totals: GST split by rate, round-off, grand total and the amount in words.
6. Payment details: due date, bank account, IFSC and UPI ID.
7. Footer: terms, signature and "for" line with your business name.

A worked example

Sharma Traders in Jaipur sells 20 ceiling fans at ₹1,850 each to a shop in Ajmer, with a 5% trade discount. Both are in Rajasthan, so GST is split into CGST and SGST.

If the same fans went to a shop in Indore, Madhya Pradesh, the tax would be IGST 18% of ₹6,327. The total does not change; only the split does. You can check such figures with the GST calculator before you print.

Numbering and copies

Keep one series per financial year, starting again from 1 April if you like, and never skip or reuse a number. If you have several counters or branches, give each its own prefix (A/, B/) so the numbers stay unique. A cancelled invoice keeps its number and is marked cancelled rather than deleted. More on this in invoice numbering rules.

For goods, GST rules expect three copies: original for the buyer, duplicate for the transporter and triplicate for you. For services, two copies are enough.

Mistakes that delay payment

• Wrong or missing GSTIN of the buyer, so they cannot claim input tax credit and hold back payment.
• No due date or payment terms, so the bill sits in a file.
• A total that does not match the purchase order rate.
• Bank details missing, or an old account number.
• Sending a blurred photo instead of a PDF.

A clear PDF with a UPI QR code, sent on WhatsApp the same day, usually gets paid faster than a printed bill handed over with the goods. See sending invoices on WhatsApp.

Recording it in Tally

In TallyPrime an invoice is entered as a Sales voucher in invoice mode. Tally takes the party, items, GST ledgers and bill-wise reference from that entry, so the outstanding for the customer starts running from the invoice date. The bill number you print should be the same as the voucher number in Tally, otherwise matching payments later becomes slow.