GST Act: CGST, IGST and SGST Acts, Key Provisions, and Amendments

The CGST Act, 2017, is a central part of India's GST framework. Its provisions cover the scope of supply, levy and collection of tax, valuation, registration, invoicing, input tax credit, returns, refunds, assessments, appeals, and penalties. The following provisions are particularly relevant to businesses.

Other provisions address the filing of returns, payment of tax, refunds, assessment, audit, inspection, demand and recovery, appeals, offences, and penalties. Businesses should review the relevant sections and rules to understand how they apply to their transactions.

For example, Section 16 sets out the principal conditions for claiming input tax credit, while Section 17 specifies restrictions, including blocked credits. Meeting the eligibility conditions and maintaining appropriate records are essential for businesses seeking to claim eligible credits.

A bare act is the official text of legislation without explanatory commentary. Reading the GST bare act helps businesses, tax professionals, and other readers understand the wording of the law rather than relying solely on summaries or interpretations.

The CGST Act, 2017 (Act No. 12 of 2017), contains Sections 1 to 174 and three Schedules in its statutory structure. Its current text also reflects provisions inserted or amended after the original enactment, including Sections 11A, 31A, 158A, and 168A.

The IGST Act, the UTGST Act, and the GST (Compensation to States) Act have their own legislative texts. The GST Rules are published separately and provide procedural details for implementing the law.

When referring to a GST bare act, use the latest updated text and check it against the relevant official gazette notifications. This is particularly important when interpreting amendments, determining effective dates, or making decisions about tax compliance.

The Integrated Goods and Services Tax (IGST) Act governs the taxation of goods and services involved in inter-state transactions. It facilitates a streamlined tax structure, ensuring uniformity and reducing complexities in cross-border trade within India. Businesses claiming input tax credits (ITC) should understand ITC and how it affects their tax liabilities.

The IGST Act applies to inter-state supplies and imports. The place-of-supply rules help determine whether a transaction qualifies as an inter-state supply, attracting IGST, or an intra-state supply, generally attracting CGST and SGST or the applicable UTGST component.

Correctly determining the place of supply is important because it affects the type of tax payable and the reporting requirements. If a business pays the wrong type of GST, it may need to follow the applicable refund and tax-payment procedures rather than simply treating the amount as interchangeable with the correct tax. Businesses should review the relevant provisions and obtain professional advice where the place of supply is unclear.

The CGST Act is a pivotal component of the GST framework, regulating the central component of tax on intra-state supplies. It outlines the rules for the collection and administration of tax for transactions occurring within a state or union territory, subject to the applicable GST structure.

Businesses need to understand the provisions governing taxable value, tax invoices, input tax credit, returns, and payment obligations under the CGST Act. Accurate tax calculations are also essential when issuing invoices and preparing returns. Businesses can use a GST calculator to calculate GST on a transaction, while ensuring that the applicable rate and tax treatment are correct.

GST legislation evolves through Finance Acts, separate amendment Acts, rules, and notifications. Businesses should distinguish between changes to the statutory provisions and changes to GST rates, which are generally implemented through the applicable notifications following GST Council recommendations.

• Finance Act 2025: Changes effective from 1 October 2025 included replacing the phrase “plant or machinery” with “plant and machinery” in Section 17(5)(d), introducing Section 148A concerning unique identification marking for notified goods, and providing a penalty under Section 122B for specified contraventions. The source material also identifies a 10% pre-deposit requirement for appeals against penalty-only orders.
• Finance Act 2026: The source material identifies a change relating to post-sale discounts under Section 15(3)(b). Under the described provision, certain discounts may be excluded from the taxable value without a prior agreement if the supplier issues a credit note and the recipient reverses the related input tax credit. The effective date is subject to notification.

The application of these changes depends on the enacted provisions, relevant notifications, and their effective dates. Businesses should therefore check the latest updates published by the Central Board of Indirect Taxes and Customs (CBIC) and consult a qualified tax professional before changing their invoicing, accounting, or tax-credit practices.

Understanding the GST Act helps businesses plan their tax payments, maintain records, issue appropriate invoices, and manage eligible input tax credits. However, compliance is only one part of running a business. Manufacturers, traders, and service providers may also need funds to purchase inventory, pay suppliers, invest in equipment, or manage temporary gaps between receivables and expenses.

A Bajaj Finance Business Loan may help eligible business owners meet such funding requirements. Business owners can apply for a collateral-free loan ranging from Rs. 2 lakh to Rs. 80 lakh, subject to eligibility, verification, and approval. 

Loan funds may be used for eligible business needs, such as working capital, inventory, machinery, expansion, or digitisation. Before applying, review the interest rate, processing fees, repayment schedule, prepayment terms, and other applicable charges. Borrowing should be based on projected cash flow and the business's ability to repay without affecting tax payments or essential operating expenses. Business owners can also check their pre-approved business loan offer to explore the available funding options.

• Click the 'Check Loan Offer' button to open the online application form.
• Enter basic details, including Name, PAN, Date of Birth, PIN Code, and Business details, and click 'CONTINUE'.
• Complete banking verification and continue.
• View your offer details, select the loan type — Term Loan, Flexi Dropline Loan, or Flexi Hybrid Loan — and choose the repayment tenure.
• Review the details and submit the business loan application.