Sreeram Viswanath

Expert

Published on: Jun 24, 2026

C Form

Business transactions between different states must be pursued with a certificate, which is known as C from. It is issued by the seller of goods to the buyer of goods for the purpose of effecting a reduction on the rate of tax. In this article, we look at C Form in detail.

Note: From 1st July 2017, GST has been implemented in India. Under GST, the concept of C Form is not applicable. 

Conditions Apply

The issue of C Form is restricted for the goods which are specified in the Registration Certificate. The commodities purchased must either be traded or used as a raw material for production. Other than that, the form can be used for the procurement of capital goods, barring a few.

Contents of the Form

A C Form should be inclusive of the following details:

  • Name of the buyer and seller
  • Name of the issuing state
  • Seal of the issuing authority
  • The office in which the certificate was issued
  • Date of issue of certificate
  • Validity of the declaration
  • Address of the buyer and seller
  • Registration number of the buyer and seller
  • Contact details of the buyer and seller
  • Serial number of the form
  • Details of the procured commodity
  • Name and signature of the authorized signatory
  • Status of the signatory in relation to the particular dealer
  • Place and date

Timeline of Issue of C Form

The C Form must be issued by the purchaser to the seller on a quarterly basis for the goods procured during the quarter. There are no monetary restrictions for issuing a single bill in a particular quarter, while multiple bills will have a restriction of one crore.

Consequences of Non-Issue

If the C Form hasn’t been issued, the purchaser would be forced to remit all the taxes at normal rates, thereby depriving him/her of any discounts. In addition to the taxes, the purchaser will have to remit the requisite interest and penalties, though it can be recovered by claiming it from the customers.

Searching a C Form

A C Form can be searched by visiting the website of TINXSYS. The search can be conducted by entering details of the type of form, name of state, series number and serial number.

Click here to search C Form.
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Frequently Asked Questions

Common questions about C Form Certificate for Interstate Transactions in India.

A C Form is a certificate issued by the seller of goods to the buyer for the purpose of effecting a reduction on the rate of tax. It is required for interstate business transactions involving the movement of goods from one state to another.
No, the concept of C Form is not applicable under the Goods and Services Tax (GST) regime, which was implemented in India on July 1, 2017. GST has replaced the earlier tax system, including the need for C Forms.
A C Form can be issued only for goods specified in the Registration Certificate of the seller. The goods purchased must either be traded or used as raw material for production, or for procurement of capital goods (with a few exceptions).
A C Form should include the names and addresses of the buyer and seller, their registration numbers, contact details, the name of the issuing state and authority, the date of issue and validity, serial number, details of the procured commodity, and the name and signature of the authorized signatory.
A C Form must be issued by the purchaser to the seller on a quarterly basis for the goods procured during that quarter. There are no monetary restrictions for issuing a single bill in a quarter, but multiple bills have a restriction of one crore.
If a C Form is not issued, the purchaser would have to remit all the taxes at normal rates, without any discounts. Additionally, the purchaser would have to pay the requisite interest and penalties, though these can be recovered by claiming them from customers.
A C Form can be searched by visiting the website of TINXSYS and entering details such as the type of form, name of the state, series number, and serial number.
The article does not explicitly mention the validity period of a C Form. However, it states that a C Form must be issued by the purchaser to the seller on a quarterly basis for the goods procured during that quarter, implying a quarterly validity.
No, a C Form can only be issued for goods specified in the Registration Certificate of the seller. It cannot be used for goods not covered under the Registration Certificate.
According to the article, the C Form must be issued by the purchaser to the seller on a quarterly basis for the goods procured during that quarter. Therefore, the responsibility of issuing a C Form lies with the buyer or purchaser of the goods.