Central Sales Tax Forms and Registration

Form B Certificate of Registration under the Central Sales Tax Act, 1956

Form B is the official certificate of registration issued to an eligible dealer under the Central Sales Tax (CST) framework. It is prescribed by Rule 5(1) of the Central Sales Tax (Registration and Turnover) Rules, 1957, following an application in Form A and verification by the notified authority.

Current applicability: GST replaced CST for most goods from 1 July 2017. CST remains relevant principally to inter-State sales of the goods still covered by the CST Act, including petroleum crude, high speed diesel, motor spirit (petrol), natural gas, aviation turbine fuel and alcoholic liquor for human consumption. A CST Form B certificate is not a substitute for GST registration.

What is CST Form B?

Form B is a registration certificate granted by the notified State tax authority under Section 7(1) or Section 7(2) of the Central Sales Tax Act, 1956. The certificate identifies the registered dealer, its business premises, the nature of its activities and the classes of goods specified for the purposes of Section 8.

The certificate is issued only after the authority is satisfied that the application particulars are correct and complete and applicable requirements have been met. Merely submitting an application does not amount to registration.

Legal provisions governing Form B

Section 7: Registration of dealers

Section 7(1) provides for compulsory registration of dealers liable to pay CST. Section 7(2) provides a route for registration of eligible dealers even where registration is not required under Section 7(1), subject to statutory conditions. Section 7(3) deals with grant of registration after the prescribed application process and satisfaction of the authority. Section 7 also contains provisions concerning amendments, cancellation and related registration matters.

Rule 3: Application in Form A

Rule 3 of the Central Sales Tax (Registration and Turnover) Rules, 1957 requires the application to be made in Form A, duly signed and verified by the appropriate person. Where there is more than one business location within a State, the rule addresses the principal place of business and coverage of the other locations.

Rule 4: Application timing and fee

Rule 4 prescribes the time for an application under Section 7(1) and provisions for applications under Section 7(2), together with the prescribed fee. Dealers should check the current State department process, payment mechanism and any applicable notifications before applying.

Rule 5: Issue of certificate in Form B

Under Rule 5(1), the notified authority, after such enquiry as it considers necessary, grants the certificate in Form B when the application is satisfactory. Copies are issued for additional places of business within the State as provided in the rule. Rule 5(2) provides safeguards for rejection, including recorded reasons and an opportunity to be heard or rectify deficiencies.

Rules 6 and 7: Display, custody and amendment

Rule 6 requires the certificate to be kept at the principal place of business and the relevant copies at other business locations. Rule 7 provides for an application to amend the registration certificate, supported by reasons and the certificate and copies, as applicable.

Information contained in Form B

The prescribed certificate generally records:

CST registration certificate number and the registered dealer's name.
State of registration and principal place of business.
Nature of business, such as manufacturing, mining, wholesale or retail distribution.
Specified classes of goods and permitted purposes relevant to Section 8.
Accounting year, additional places of business and warehouses.
Effective date, signature of the notified authority and official seal or equivalent authenticated record.

Why the goods specified in Form B matter

Section 8(1) deals with the concessional CST rate for qualifying inter-State sales to registered dealers, while Section 8(3) specifies eligible uses and classes of goods. Section 8(4) requires the prescribed declaration, generally Form C, for the concessional treatment. A Form B certificate alone does not automatically confer a concession on every purchase.

For goods and transactions still within the CST regime, dealers should ensure the certificate accurately identifies the relevant goods and purposes, and that the statutory conditions and declaration requirements are satisfied.

Validity and amendment of the certificate

The prescribed Form B states that the certificate is valid from the specified date until cancelled. A dealer should seek amendment when relevant registered particulars change, including business addresses, additional locations or classes of goods, in accordance with Rule 7 and applicable departmental procedures. The authority may verify the changes before endorsing them.

How to obtain or verify a CST Form B certificate

Confirm that the dealer's goods and activities fall within the current CST registration framework.
Prepare Form A and the supporting business, address and registration particulars required by the relevant State tax authority.
Submit the application and prescribed fee through the procedure currently accepted by that authority.
Respond to any enquiry or request for correction.
Upon approval, obtain Form B and check the registration number, locations, goods and effective date.
Keep the certificate and copies as prescribed and apply for amendments where necessary.

Online availability, application processes and certificate verification facilities vary by State. The issuing State's commercial taxes or GST department should be consulted for the operative procedure.

Official law, rules and Form B references

India Code - Central legislation, including the Central Sales Tax Act, 1956 and subsequent amendments.
Central Sales Tax (Registration and Turnover) Rules, 1957 - official State tax department PDF.
Form B certificate of registration (PDF) - Kerala State Taxes Department.
CST forms collection - Telangana Commercial Taxes Department.
GST Portal - GST registration and compliance for supplies covered by GST.

Related CST guidance

See CST registration procedure and documents, CST rates and historical changes, and forms and declarations under the CST Act. Historical rates and VAT information must be read in light of the post-GST law.

Updated: 9 October 2026. This article is general information; current amendments, State procedures and transaction-specific conditions should be checked against official notifications.