Types of GST Explained: What Every Retailer and Service Provider Should Know
Here's a comprehensive guide by BUSY Infotech Pvt. Ltd to help you navigate the four types of GST and their impact on your business.

The Goods and Services Tax (GST) has revolutionized India’s indirect tax system, creating a unified market and simplifying tax compliance for businesses of all sizes. For retailers and service providers, understanding the different types of GST is critical—not just for accurate invoicing and tax filing, but also for maintaining compliance and optimizing costs. Here's a comprehensive guide by BUSY Infotech Pvt. Ltd to help you navigate the four types of GST and their impact on your business.
What Are the Four Types of GST?
The GST system in India is divided into four components, each applicable depending on the nature of the transaction—whether it is intra-state or inter-state.
1. CGST – Central Goods and Services Tax
CGST is collected by the Central Government on intra-state sales—transactions where the buyer and the seller are in the same state. It applies to both goods and services.
For example, if a clothing retailer in Delhi sells merchandise to a customer in Delhi, CGST will be applicable. The revenue generated goes to the central government.
2. SGST – State Goods and Services Tax
SGST is levied by the State Government, also on intra-state sales. It works alongside CGST. In such transactions, the GST rate is split equally between CGST and SGST.
So, if the applicable GST rate is 18%, 9% will go to CGST and 9% to SGST.
3. IGST – Integrated Goods and Services Tax
IGST is applied on inter-state transactions—when goods or services move from one state to another. This type of GST is collected by the Central Government, which later distributes the state’s share to the respective state government.
For instance, if a retailer in Maharashtra sells to a customer in Karnataka, IGST applies. This ensures tax flow between states and prevents cascading taxes.
4. UTGST – Union Territory Goods and Services Tax
UTGST is like SGST but is applied in Union Territories without legislatures (e.g., Chandigarh, Lakshadweep). It’s applicable on intra-UT transactions and works in combination with CGST.
In such cases, the revenue is shared between the Central Government and the UT administration.
Why Should Retailers and Service Providers Understand These Types?
Whether you're selling products in a physical store, running an eCommerce business, or providing services like consulting or salon treatments, understanding the types of GST helps in the following ways:
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Accurate Tax Calculation: Knowing whether to apply CGST/SGST or IGST prevents tax mismatches and errors on invoices.
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Input Tax Credit (ITC) Management: Proper classification ensures smooth ITC claims, reducing overall tax liability.
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Better Pricing Strategy: Correct tax computation allows for more precise product pricing, especially when operating in multiple states.
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Improved Compliance: Filing accurate returns through software like BUSY Accounting Software minimizes the risk of penalties and audits.
Key Scenarios Explained
Transaction Type | Applicable GST Types |
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Sale within the same state | CGST + SGST |
Sale to a different state | IGST |
Sale within a Union Territory | CGST + UTGST |
Service provided to other state | IGST |
Service within the same state | CGST + SGST |
BUSY Infotech’s Take
At BUSY Infotech Pvt. Ltd, we understand that taxation can be complex, especially for growing retailers and service businesses. That’s why our GST-ready accounting software simplifies the billing process, applies the correct GST type automatically, and generates GST-compliant invoices and reports.
Our platform is designed to help you:
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Auto-calculate GST based on location
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File GST returns easily (GSTR-1, GSTR-3B, etc.)
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Reconcile mismatched invoices
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Track ITC with real-time data
Final Thoughts
Understanding the types of GST is essential for retailers and service providers who want to stay compliant, manage finances better, and avoid costly mistakes. As GST continues to evolve, staying informed and leveraging the right tools—like those offered by BUSY Infotech Pvt. Ltd—will ensure your business remains tax-efficient and growth-ready.