Migration from Old Tax Regime
The transition from the earlier indirect tax structure (Excise, Service Tax, VAT, CST, etc.) to the Goods and Services Tax (GST) on 1st July 2017 marked a major reform in India’s taxation system.
Statutory Reference: Sections 139 to 142 of the CGST Act, 2017 and corresponding State GST Acts.
1.1 Objective:
To ensure a smooth migration of taxpayers and seamless transfer of unutilized credits and pending proceedings from the old regime to the new GST framework.
1.2 Migration of Taxpayers:
All persons registered under Central Excise, Service Tax, or VAT were automatically migrated to GST via provisional registration.
A Provisional ID and password were issued by CBEC/State VAT departments.
Upon verification, a final registration certificate (GSTIN) was granted (Rule 24 of CGST Rules).
1.3 Migration Steps:
1️⃣ Enrolment on the GST Common Portal (www.gst.gov.in). 2️⃣ Verification of PAN, mobile, and email. 3️⃣ Upload of documents (proof of business, photographs, constitution). 4️⃣ Issuance of final GSTIN upon validation and approval.
Note: Unregistered persons liable to register under GST for the first time had to apply afresh under Section 22 or 24.

