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October 31, 2025

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Basics of GST

Dual GST Meaning: Understanding CGST and SGST Components

The Goods and Services Tax (GST) was adopted in India on July 1, 2017, and it is considered to make the complex system of the Indian indirect tax simpler and to create a unified market in the country.

However, the federal nature of India accords authority to the State and the Centre in the collection of taxes. To maintain such a constitutional balance, India used the Dual GST Model, a taxation system whereby the Centre and States share the power.

This blog explains the meanings of Dual GST, along with detailed insights into its two key components - Central GST (CGST) and State GST (SGST). You’ll also learn how these components function, their benefits, and examples illustrating their implementation.

What is Dual GST?

The Dual GST Model makes it a point that both the Central and State governments tax the same transaction. Both governments charge and collect their portion separately, which is utilised to meet their respective budgets.

Under this Model:

Intra-State Transactions: Both CGST (Central) and SGST (State) receive intra-state tax based on intra-state sales.

Inter-State Transactions: Integrated GST (IGST) is levied by the Central Government and the amount is divided between the Central Government and the State Government, in which the goods or services would be consumed.

‍Example:

The value of goods sold by a dealer in Maharashtra is of the value of Rs 1,00,000 in the state at 18% GST. CGST and SGST would be paid in this instance at Rs 9,000 and Rs 9,000, respectively. If the same dealer sells to a Gujarat buyer, then Rs 18,000 is charged as IGST, collected by the Central Government and shared.

For an overview of the GST structure, read GST Structure in India: Four-Tier GST Tax.

Components of Dual GST

Central Goods and Services Tax (CGST)

CGST is levied at the intra-state provision of goods and services through the Central Government. It has replaced the previous central taxes such as Excise Duty, Service Tax, and Central Sales Tax.

The revenue collected under CGST goes directly to the Central Government’s corpus, used for national projects, defence, and disaster management.

Example:

If the GST rate on a product is 12%, half (6%) goes as CGST to the Centre.

State Goods and Services Tax (SGST)

The respective State Government levies SGST on the same transaction. It replaced multiple state-level taxes like VAT, Luxury Tax, and Entry Tax.

The collected revenue from SGST goes to infrastructure, welfare, health, and education work in that specific state.

Example:

Following the above case, the second half (6%) of the 12% GST would be received by the State Government as SGST.

For an in-depth comparison, read Differences between CGST and SGST

The Need for a Dual GST Structure

Before GST, India had a fractured tax structure. Separate taxes on goods and services were collected by the Central and State governments, leading to double taxation at times.

The Dual GST Model solved this by:

Sharing Revenue Powers: Ensuring that both levels of government retain fiscal authority.

Reducing Tax Overlaps: Combining multiple indirect taxes into one framework.

Establishing Transparency: Digital tracking of supply and credit through GSTN.

Supporting Cooperative Federalism: Balancing State and Central interests in revenue collection.

Major Features of Dual GST

Concurrent Taxation Powers: The Centre and States impose tax on the same supply.

Uniform Base: All states follow uniform tax structures and rates.

Destination-Based Taxing: The taxing authority where goods or services are consumed is the state.

Full Input Tax Credit (ITC): Taxpayers can credit tax paid on inputs against output liability.

Online Platform: All payments, filings, and credits are done through the official GST Portal.

To know more about input credit usage across states, visit Claim ITC on CGST and SGST of other states.

How CGST and SGST Interact

For every intra-state supply, the value of the goods or services is divided equally between CGST and SGST.

Transaction Type	Tax Components	Example Rate	Revenue Recipient
Intra-State Supply	CGST + SGST	9% + 9%	Central + State Governments
Inter-State Supply	IGST	18%	Central Government (shared with the consuming State)

‍Example:

A Merchant in Delhi sells to a consumer in the same state goods of a value of Rs 50,000. GST rate = 18%.

CGST = 9% = Rs 4,500 (Central Government)

SGST = 9% = Rs 4,500 (Delhi Government)

Total GST = Rs 9,000

In the case of inter-state supply (Delhi to Haryana), IGST = 18% (Rs 9,000) will be paid to the Centre, and it will pass a fair amount to Haryana.

Why India Adopted a Dual Model

India’s federal character necessitates fair revenue distribution between the States and the Centre. A single GST, collected by the Centre alone, will erode state budgets. Alternatively, taxation by States alone may adversely affect national revenue administration.

Thus, Dual GST has the best of both worlds:

The Centre retains control over national fiscal policy.

States retain rights over regional tax revenue.

The model ensures fiscal discipline, financial autonomy, as well as revenue sharing on a balanced basis.

You can also read Common GST Terms Explained: CPIN, ARN, and EVC for practical terms related to GST filing.

Advantages of Dual GST

1. Eliminates Cascading of Taxes

GST ensures a seamless flow of input tax credit, removing the ‘tax on tax’ burden from previous VAT and excise systems.

2. Promotes Fair Revenue Distribution

With both the Central and State governments collecting revenue, funds flow efficiently into the welfare and development sectors.

3. Simplifies Compliance

A common filing mechanism through the GSTN portal enables businesses to file all returns in one place.

4. Fosters Transparency

Corruption and evasion of tax are minimised by computerised records and regular auditing.

5. Increases Ease of Doing Business

Equal rates for all states avoid overlapping taxes, simplifying interstate trade activities.

Challenges of the Dual GST System

1. Multiple Returns

Businesses must file both CGST and SGST reports.

2. Technical Barriers

Compliance requires a reliable digital infrastructure.

3. Rate Disputes

Complex categorisation of goods sometimes leads to rate confusion.

4. Initial Adaptation

Small and Medium enterprises incurred substantial switching costs when GST was introduced.

However, long-term benefits will surpass these initial problems.

Comparison: Dual GST VS Single GST

Criteria	Dual GST (India)	Single GST (Other Countries)
Tax Authority	Shared between the Centre and the States	Only the Central Government
Federal Balance	Maintained	Not Applicable
Rate Uniformity	Moderate (CGST + SGST)	Fully uniform
Implementation Complexity	Relatively higher	Simpler
Revenue Benefit	Distributed	Centralized

By adopting dual GST, India preserved fiscal federalism while achieving market integration.

Real-Life Impact on Businesses

Automation and digital infrastructure have made compliance easier over eight years since the implementation of the GST.

Positive Outcomes:

Lower product prices due to the Input Tax Credit.

Reduction in logistics costs and border delays.

A uniform tax regime promotes interstate trade.

Impact Example:

A manufacturer in Gujarat can now send goods to Maharashtra without border taxes or multiple permits. Only IGST applies, credited seamlessly via GSTN.

FAQs

What is Dual GST in Simple terms?

Dual GST is where both the Central and State Governments tax the same supply under their own laws.

What are CGST and SGST?

CGST is paid by the Centre, whereas SGST is paid by the State for intra-state sales.

How is tax divided in inter-state trade?

IGST is levied and collected by the Centre and later distributed to the destination state.

Why does India need Dual GST?

To maintain fiscal balance, allowing both the Centre and the States to collect revenue for development.

In what ways does Dual GST assist small businesses?

It reduces a range of taxes, simplifies the filing process and eases the cross-state operations.

Conclusion

The Dual GST Model represents the vision of having One Nation, Two Authorities, One Tax System in India. The model brings together the enormous and complicated taxation system in India without interfering with the fiscal independence of the states.

The system encourages efficiency, accountability, and inclusiveness through the equal collection of revenue through CGST and SGST.

Since India is still undertaking the reforms of GST 2.0, the dual system will remain the foundation of national taxation - state freedom in harmony with central control.

To learn more about existing GST filing procedures, read GST Return Filing Process: Step-by-Step Guide.