Invoice vs Bill vs Receipt: What Is the Difference?

"Send me the bill." "Where is the invoice?" "Can I get a receipt?" Indian business owners hear all three every week, often about the same transaction. They are related, but they are not the same, and mixing them up causes problems with GST credit, payment follow-up and audits.

This guide explains what each document is, who issues it, when, and what it proves, with a single worked example that shows all three in sequence.

What is an invoice?

An invoice is a document the seller issues to the buyer requesting payment. It lists the goods or services, quantities, prices, taxes and the total amount due, usually with a due date.

For a GST-registered seller making a taxable supply, the invoice must be a tax invoice containing the particulars in Rule 46 of the CGST Rules: supplier and recipient details, a consecutive serial number up to sixteen characters unique for the financial year, date, HSN or SAC codes, taxable value, tax rate and amount, place of supply, reverse charge flag and signature. For more, see what is an invoice.

The key point: an invoice comes before payment (or at the same moment, in a cash sale). It creates the debt.

What is a bill?

"Bill" has two meanings in India, and that is where confusion starts.

Bill in everyday language

In everyday usage, a bill is just the invoice seen from the buyer's side. A restaurant bill, an electricity bill and a supplier's bill are all demands for payment. When a buyer says "send the bill", they almost always mean "send the invoice".

Bill of supply under GST

Under GST, a bill of supply is a defined document. It is issued instead of a tax invoice when no tax is charged, for example:

• by a dealer registered under the composition scheme
• for supplies of exempt goods or services

A bill of supply does not show GST and does not give the buyer any input tax credit. See tax invoice vs bill of supply and the composition scheme guide.

Bill in accounting

Accounting software often uses "bill" for a purchase invoice you have received from a supplier, and "invoice" for a sales invoice you have issued. Same kind of document, opposite direction.

What is a receipt?

A receipt is a document issued by the person who received money, confirming that payment was made. It typically shows:

• receipt number and date
• name of the payer
• amount received, in figures and words
• mode of payment (cash, cheque, UPI, bank transfer) and reference number
• the invoice or invoices it settles
• signature of the receiver

A receipt does not create any tax liability by itself. It proves settlement.

Receipt voucher for advances

GST has a related but separate document: the receipt voucher. When you receive an advance before supplying goods or services, you issue a receipt voucher, and later a tax invoice when the supply happens. See advance payment under GST for how tax works on advances.

Invoice vs bill vs receipt: side-by-side comparison

Point	Invoice (tax invoice)	Bill (bill of supply)	Receipt
Issued by	Seller	Seller (composition or exempt supply)	Person receiving money
Issued when	At or before supply (goods) or within 30 days (services)	Same timing as an invoice	After payment
Purpose	Request payment, record a taxable sale	Record a non-taxable sale	Confirm payment received
Shows GST	Yes, separately	No	No (references the invoice)
Buyer gets input tax credit	Yes, if buyer is registered	No	No
Reported in GSTR-1	Yes	Yes, as a non-taxable or exempt supply	No
Legal effect	Creates the debt	Creates the debt	Discharges the debt

Worked example: one sale, three documents

A Kolhapur electrical supplies dealer, registered under the regular GST scheme in Maharashtra, sells cables and switches to a registered contractor in the same city.

Step 1: Invoice. On 6 October 2026 the dealer issues tax invoice KOP/26-27/0412:

Item	Qty	Rate (₹)	Value (₹)
Copper cable, 90 m coil	4	3,200	12,800.00
Modular switches	50	96	4,800.00
Taxable value			17,600.00
CGST @ 9%			1,584.00
SGST @ 9%			1,584.00
Total			20,768.00

(18% is assumed for this example; confirm the current rate for each HSN code.)

Payment terms: Net 15, due 21 October 2026.

Step 2: Bill (from the buyer's side). The contractor records this invoice in their purchase register as a supplier bill of ₹20,768, and claims input tax credit of ₹3,168 (₹1,584 + ₹1,584) once it appears in their GSTR-2B.

Step 3: Receipt. On 18 October the contractor pays ₹20,768 by UPI. The dealer issues receipt RCPT/26-27/0388 for ₹20,768 against invoice KOP/26-27/0412, quoting the UPI reference.

If the contractor had instead paid ₹10,000 now and ₹10,768 later, the dealer would issue two receipts, each referencing the same invoice, and the invoice would show as part-paid until the second payment.

If the dealer were a composition dealer, Step 1 would be a bill of supply for ₹17,600 with no GST shown, and the contractor would get no credit.

When should you issue each document?

1. Before the sale: quotation or estimate (see quotation vs estimate vs invoice).
2. If advance is received: receipt voucher.
3. At supply: tax invoice (or bill of supply). For goods, before or at removal or delivery. For services, within thirty days of supply under Rule 47.
4. After payment: receipt, for each payment received.
5. If the sale changes: credit note or debit note. See credit note under GST.

Which document does your customer actually need?

Customer type	What they need most	Why
GST-registered business	Tax invoice with their correct GSTIN	To claim input tax credit
Unregistered business	Invoice for their books	To record the expense
Individual consumer	Invoice or bill; receipt for cash	Proof of purchase, warranty
Government department	Invoice in their format, plus receipt	Their payment process requires both
Overseas client	Export invoice	Customs and their own accounts

What should a payment receipt contain?

Although no GST rule prescribes a format for an ordinary payment receipt, a good one prevents disputes. Include:

1. Your business name and address
2. A receipt number from its own series, such as RCPT/26-27/0001
3. Date of receipt
4. Name of the payer
5. Amount in figures and words
6. Mode of payment and reference: UPI transaction ID, cheque number and bank, or NEFT/RTGS UTR
7. The invoice number or numbers being settled, with the amount applied to each
8. Any balance still outstanding
9. Signature or authorised stamp

Handling part-payments and TDS on receipts

When a customer pays part of an invoice, the receipt should show the amount received and the balance due. When a customer deducts income-tax TDS, the receipt can show the cash received and the TDS amount separately, both applied against the invoice, so the invoice is fully settled in your books. See TDS on invoices.

How long should you keep these documents?

Keep invoices, bills of supply, receipts and receipt vouchers together with your accounts for the period GST law requires for books and records. Electronic storage is fine as long as records can be produced when asked. See GST record keeping rules.

How many copies of an invoice do you need?

Rule 48 of the CGST Rules sets out how a tax invoice is issued. For a supply of goods, it is prepared in triplicate:

Copy	Marking	Who keeps it
Original	ORIGINAL FOR RECIPIENT	Buyer
Duplicate	DUPLICATE FOR TRANSPORTER	Travels with the goods
Triplicate	TRIPLICATE FOR SUPPLIER	Seller's records

For a supply of services, it is prepared in duplicate: ORIGINAL FOR RECIPIENT and DUPLICATE FOR SUPPLIER.

Receipts have no equivalent statutory copy rule under GST, but keep your own copy of every receipt you issue. If an advance was received, the receipt voucher is a GST document in its own right; see advance payment under GST.

Practical tips for each document

• Invoice: print or generate the copies with their markings, so the transporter copy is never confused with the buyer's.
• Bill (purchase side): file each supplier's invoice against your purchase entry and check it carries their GSTIN before claiming credit.
• Receipt: quote the invoice number it settles, the amount and the payment mode, and number receipts in their own series.

Common mistakes

• Issuing only a receipt for a taxable sale. The buyer cannot claim credit and you have not met the invoice requirement.
• Calling a bill of supply a tax invoice. If you are a composition dealer, you cannot charge or show GST.
• Receipts that do not reference an invoice. When a customer pays several invoices at once, list each one on the receipt so ledgers match.
• No receipt for cash payments. A cash payment without a receipt is hard to prove later for both sides.
• Treating advances as ordinary receipts. Advances may have GST consequences; issue a receipt voucher, not a plain receipt.
• Using "bill" loosely in your software. Keep sales invoices and purchase bills in separate series to avoid confusion.

How software keeps the three linked

The pain of three documents is mostly manual linking: which receipt paid which invoice, which bill is still open. Billing software ties them together. When a UPI payment comes in against an invoice, the invoice status changes to paid and the receipt is generated with the right reference. Billing Software by Betterwork, for instance, issues GST invoices and credit notes, sends payment reminders and UPI payment links, and shows outstanding amounts in its reports. Ready formats for all three are available on the templates page.

Key takeaways

• An invoice requests payment and, under GST, records a taxable sale.
• "Bill" can mean the same invoice from the buyer's side, or a GST bill of supply for non-taxable sales.
• A receipt confirms payment and discharges the debt; it carries no tax.
• A receipt voucher is a GST document for advances, different from a normal receipt.
• Registered buyers need a proper tax invoice to claim credit, not just a receipt.
• Link every receipt to the invoices it settles.

This guide is general information, not tax advice. Rules last checked on 20 October 2026; confirm with your tax professional for your situation.