An invoice or a bill is a list of goods sent or services provided, along with the amount due for payment.  If you are a GST registered business, you need to provide GST-complaint invoices to your clients for sale of good and/or services. Your GST registered vendors will provide GST-compliant purchase invoices to you. 


A tax invoice is generally issued to charge the tax and pass on the input tax credit. A GST Invoice must have the following mandatory fields:

  1. Invoice number and date
  2. Customer name
  3. Shipping and billing address
  4. Customer and taxpayer’s GSTIN (if registered)**
  5. Place of supply
  6. HSN code/ SAC code
  7. Item details i.e. description, quantity (number), unit (meter, kg etc.), total value
  8. Taxable value and discounts
  9. Rate and amount of taxes i.e. CGST/ SGST/ IGST
  10. Whether GST is payable on reverse charge basis
  11. Signature of the supplier

**If the recipient is not registered AND the value is more than Rs. 50,000 then the invoice should carry:

   i. name and address of the recipient,

  ii. address of delivery,

  iii. state name and state code


6.A. Bill of Supply

A bill of supply is similar to a GST invoice except for that bill of supply does not contain any tax amount as the seller cannot charge GST to the buyer.

A bill of supply is issued in cases where tax cannot be charged:

  • Registered person is selling exempted goods/services,
  • Registered person has opted for composition scheme


Invoice-cum-bill of supply

As per Notification No. 45/2017 – Central Tax dated 13th October 2017

If a registered person is supplying taxable as well as exempted goods/ services to an unregistered person, then he can issue a single “invoice-cum-bill of supply” for all such supplies.


6.B. Aggregate Invoice

If the value of multiple invoices is less than Rs. 200 and the buyer are unregistered, the seller can issue an aggregate or bulk invoice for the multiple invoices on a daily basis.

For example, you may have issued 3 invoices in a day of Rs.80, Rs.90 and Rs. 120. In such a case, you can issue a single invoice, totaling to Rs290, to be called an aggregate invoice.


6.C. Debit and credit note


A debit note is issued by the seller when the amount payable by the buyer to seller increases:

  1. Tax invoice has a lower taxable value than the amount that should have been charged
  2. Tax invoice has a lower tax value than the amount that should have been charged

A credit note is issued by the seller when the value of invoice decreases:

  1. Tax invoice has a higher taxable value than the amount that should have been charged
  2. Tax invoice has a higher tax value than the amount that should have been charged
  3. Buyer refunds the goods to the supplier
  4. Services are found to be deficient