This article explains Section 15 of the CGST Act, 2017, which governs the value of taxable supply under GST. It covers the transaction value, inclusions and exclusions, and discounts to help businesses ensure they are complying with GST reporting requirements.
Value of Taxable Supply under Section 15 of the CGST Act | GST Compliance Explained
Introduction to Section 15
In the Goods and Services Tax (GST) framework, the value of taxable Supply is a critical concept that determines how much GST is payable on goods or services. Section 15 of the Central Goods and Services Tax (CGST) Act, 2017 defines the methodology for determining the value of a supply, ensuring that the right amount of tax is charged and collected. Proper valuation is fundamental for businesses, as it ensures they comply with tax obligations and avoid penalties.

Understanding the Value of Taxable Supply under GST
The value of taxable supply is typically the transaction value, i.e., the price actually paid or payable for the goods or services when the supplier and recipient are not related, and the price is the sole consideration for the supply. The importance of correctly determining the value of supply cannot be overstated, as it directly affects the GST amount payable. This article delves into the detailed provisions of Section 15 and highlights how businesses should apply them in their operations.
Key Provisions of Section 15
Transaction Value: The Basis for Taxable Supply
Section 15(1) specifies that the value of supply is generally the transaction value, which is the price actually paid or payable for the goods or services. This value should be considered only if:
The supplier and the recipient are not related.
The price is the sole consideration for the supply.
If the supplier and the recipient are related, or if there are other factors influencing the price (such as discounts or subsidies), then the transaction value may not reflect the true taxable value, and the rules of Section 15(2) will apply.
Key Inclusions in the Value of Supply
Section 15(2) lays down what should be included in the value of the supply. The following components should be considered:
Taxes, Duties, Cesses, Fees, and Charges: Any taxes, duties, or fees levied under other laws (except the CGST, SGST, UTGST, and GST Compensation Acts) that are charged separately by the supplier.
Liabilities Incurred by the Recipient: Any amount the supplier is liable to pay in relation to the supply, but which has been incurred by the recipient and not included in the price.
Incidental Expenses: Costs such as commission, packing, or any other amount charged by the supplier to the recipient for services provided in relation to the supply of goods or services. This includes costs incurred before or during the delivery of goods or supply of services.
Interest, Late Fees, or Penalties: Any charges related to delayed payment of consideration for the supply should be included in the value.
Subsidies: Subsidies directly linked to the price of the supply, excluding those provided by the central and state governments. The value of the subsidy should be included in the taxable supply of the supplier who receives the subsidy.
Key Exclusions from the Value of Supply
Section 15(3) outlines what is excluded from the value of the supply:
- Discounts:
Before or at the time of supply: If a discount is given before or at the time of supply, and it is duly recorded in the invoice, it will not be included in the value of supply.
After the supply: Discounts given after the supply has been made are excluded, provided:
The discount is linked to a specific invoice and established in an agreement made at or before the time of supply.
The recipient of the supply has reversed the input tax credit (ITC) attributed to the discount.
Determining the Value When Transaction Value Cannot Be Applied
Section 15(4) provides a framework for determining the value of supply when the transaction value cannot be applied. In such cases, businesses must follow the prescribed rules for determining the value of supply, which are provided in the GST rules.
Section 15(5) also allows the Government, on the recommendations of the GST Council, to notify specific supplies for which the value must be determined in a manner other than the transaction value, as prescribed by the rules.
Related Persons and Transactions
Section 15(6) includes a definition of related persons, which is crucial in determining whether the transaction value should be used. Persons are considered related if:
They are officers or directors of one another's businesses.
They are partners in business or employer and employee.
One person owns 25% or more of the voting stock or shares of both entities.
One of them controls the other, or both are controlled by a third person.
They are members of the same family.
Related-party transactions often involve different considerations, and the transaction value may not accurately reflect the actual value of the supply. In such cases, the value must be determined using other methods.
Practical Implications for Businesses
Importance of Accurate Valuation
Proper valuation is not just a matter of compliance; it directly impacts the amount of GST payable. Over-valuing a supply results in overpayment of tax, while under-valuing it can lead to underpayment and penalties. Businesses must keep accurate records of all components that contribute to the value of supply, including incidental expenses, interest, and penalties.
Common Mistakes and Their Consequences
Incorrectly applying discounts: Failing to correctly apply discounts, especially after the supply, can result in tax errors.
Not including incidental expenses: Businesses may forget to include incidental charges like packing, commission, or delivery charges in the value of supply.
Related-party transactions: Not following the prescribed rules for related-party transactions may lead to undervaluation of supply, leading to potential tax disputes and penalties.
Practical Tips for GST Compliance
Accurate Record Keeping: Maintain clear records of all invoices, discounts, subsidies, and incidental charges. Ensure that discounts and other terms are clearly recorded in the contract and invoices.
Training for Invoicing: Ensure that all relevant teams understand the valuation rules, especially in cases where related persons are involved or where discounts or subsidies apply.
Review Regularly: Regularly audit your business’s pricing strategy and GST filings to ensure that the value of supply is being correctly calculated and that GST is paid on the correct value.
Practical Examples and Case Studies
Example 1: Transaction with a Related Party
If a business sells goods to a related company at a lower price than the market value, the transaction value may not reflect the true market value. In such a case, the business must adjust the transaction value by considering other factors, such as the cost of production or prevailing market prices.
Example 2: Subsidies Linked to the Price
A business may receive subsidies from a government body that are linked to the price of the goods. In such cases, the subsidy amount should be included in the value of the supply and taxed accordingly.
Example 3: Discounts After Supply
If a discount is given after the supply is made, and it is linked to a specific invoice, the value of supply will be reduced by the amount of the discount, provided the recipient has reversed the ITC attributed to the discount.
Conclusion
Section 15 of the CGST Act provides a clear framework for determining the value of taxable supply, which is crucial for businesses to comply with GST laws. By ensuring that the correct transaction value is applied, businesses can avoid penalties and interest, while also ensuring they are not overpaying GST. The key steps involve accurate record-keeping, correctly applying discounts, and adhering to the rules for related-party transactions and subsidies.
With a clear understanding of these rules and proper implementation, businesses can navigate the complexities of GST valuation, ensuring compliance and minimizing the risk of tax-related issues.