Understanding Foundation of GST: Sections 7, 8 and 9 of CGST Act, 2017

Sections 7, 8, and 9 of the CGST Act, 2017 form the foundation of India’s GST framework by defining what is taxable, how transactions are classified, and when tax becomes payable. Section 7 explains that GST is levied on “supply” of goods or services made for consideration in the course or furtherance of business, including certain transactions without consideration such as related-party supplies listed in Schedule I. Section 8 deals with bundled transactions, distinguishing between composite supplies—where a principal supply determines the applicable GST rate—and mixed supplies, where the highest rate among the items applies. Section 9 provides the charging provision, specifying that GST is payable on intra-state supplies at notified rates, either by the supplier or, in specified cases, by the recipient under the reverse charge mechanism. Together, these provisions help taxpayers correctly identify taxable events, apply proper rates, and avoid classification errors and disputes.

Why start with these sections?

Before talking about returns, ITC, or notices, it is important to understand what GST actually applies to. Sections 7, 8, and 9 of the CGST Act 2017  form the base of the entire GST law. These sections explain:

• What is considered a supply
• Whether a transaction is taxable or not
• When GST becomes payable

If these basics are clear, the rest of GST becomes much easier to understand.

Section 7 – What is “Supply” under GST?

GST is not charged on income or profit. It is charged on supply. Section 7 tells us what the law treats as a supply.

In simple words

Any transaction involving goods or services done:

• for a consideration (payment), and
• in the course or furtherance of business

is treated as a supply.

Examples

• Selling goods for money
• Providing services and charging fees
• Exchanging goods or services
• Renting property for business

Even if payment is not in cash, it can still be a supply.

Special points to remember

Some transactions are treated as supply even without consideration, such as:

• Permanent transfer of business assets on which ITC was claimed
• Supplies between related persons in the course of business

These are listed in Schedule I of the Act.

Section 8 – Composite Supply and Mixed Supply

Many times, more than one item is supplied together. Section 8 explains how GST should be charged in such cases.

Composite Supply

A composite supply means:

• Two or more supplies are naturally bundled
• One supply is the main supply

Example:

Hotel accommodation with breakfast.
Here, accommodation is the main supply.

GST treatment:

GST rate of the main supply applies to the whole transaction.

Mixed Supply

A mixed supply means:

• Two or more independent supplies
• Supplied together for a single price

Example:

Gift hamper containing sweets, dry fruits, and chocolates sold for one price.

GST treatment:

Highest GST rate among the items applies to the entire supply.

Section 9 – Levy and Collection of GST

Section 9 is where GST actually becomes payable.

What this section says

GST shall be levied on:

• All intra-state supplies of goods or services
• At rates notified by the government

GST is paid by:

• The supplier, in normal cases
• The recipient, in certain notified cases under reverse charge

Reverse Charge Mechanism (RCM)

In some cases, the buyer pays GST instead of the seller, such as:

• Certain notified services
• Supplies from unregistered persons in specified cases

Why these sections matter in real life

Understanding these sections helps in:

• Knowing whether GST applies to a transaction or not
• Deciding the correct tax rate
• Avoiding wrong classification and future notices
• Explaining GST concepts to non-finance teams

Conclusion

Sections 7, 8, and 9 form the backbone of GST law. Once a person understands what supply is, how bundled supplies are treated, and when tax becomes payable, GST stops feeling complicated.

In the next post, we can move to Section 10 (Composition Scheme) or Section 12 and 13 (Time of Supply) in the same simple manner.