Invoice vs Bill vs Receipt: The Difference Explained for India

The short version

An invoice is a request for payment issued by the seller. A bill, in common Indian usage, means the same thing, especially for small businesses and shops; it is the amount the customer owes. A receipt is proof that payment has been received, issued after the customer pays. In sequence, you quote, you invoice or bill, the customer pays and you give a receipt.

What is an invoice?

An invoice is a formal document that lists what you supplied, the quantity, the price, the total, the date, the payment terms and the details of both parties. It is issued after, or at the time of, the supply, and it creates a record that the buyer owes money. Businesses use invoices for credit sales, where payment comes later, and companies expect them with a number, a date and your tax details if you have any. For registered businesses under GST, a “tax invoice” is the specific form required for taxable supplies.

What is a bill?

In India, “bill” is the everyday word for the document a shop, salon, tailor or restaurant hands over. A cash memo or a retail bill usually shows the items and the total, and is often paid immediately. Under GST, a registered person who supplies exempt goods or services, or who is under the composition scheme, issues a “bill of supply” rather than a tax invoice. Outside the tax context, bill and invoice are practically the same: both state what is owed.

What is a receipt?

A receipt confirms that money has been received. It lists the amount, the date, the payment method and what the payment was for, and it is issued by the person who received the money. A receipt matters when payment happens separately from the invoice, for example when a client pays an invoice by bank transfer a week later, or pays in instalments. For advances, a receipt voucher may be required for GST-registered businesses, so ask your accountant. A receipt does not ask for payment, it records it.

Quotation, proforma, challan and credit note

• Quotation or estimate: an offer of price, before any work. It is not a demand for payment.
• Proforma invoice: a preliminary invoice used for advances, approvals and customs, which is not a final tax document.
• Delivery challan: a document that accompanies goods in transit, without a price demand.
• Credit note: a document issued to reduce the amount on an earlier invoice, for returns or corrections.
• Purchase order: issued by the buyer to request goods or services at an agreed price.

Quick comparison

Which should you send?

For a walk-in customer who pays on the spot, a bill with the amount paid is enough. For a business client that pays later, send an invoice with a unique number, a due date and your payment details, and send a receipt, or mark the invoice paid, when the money arrives. For large or long projects, begin with a quotation, take an advance against a proforma invoice and then issue your final invoice, as our guide on proforma and tax invoices describes. Keep copies of everything in order.

Common confusions

• Treating a quotation as a bill; a quotation creates no obligation to pay.
• Sending a receipt before the money has actually cleared.
• Using one number series for everything, which breaks the sequence of invoices.
• Calling a proforma invoice a tax invoice, or the reverse.
• Forgetting to record advances against the final invoice.