GST Basics for Businesses in India: Registration, Returns & Compliance

# GST Basics for Businesses in India: Registration, Returns & Compliance

The **Goods and Services Tax (GST)**, introduced on 1 July 2017, is India's most comprehensive indirect tax reform since independence. Replacing a multitude of central and state taxes, GST established a unified national market under the principle of **"One Nation, One Tax."** Governed by the **Central Goods and Services Tax Act, 2017 (CGST Act)**, the **Integrated Goods and Services Tax Act, 2017 (IGST Act)**, the respective **State Goods and Services Tax Acts (SGST Acts)**, and the **Union Territory Goods and Services Tax Act, 2017 (UTGST Act)**, the GST framework affects virtually every business in India. This article provides a comprehensive educational overview of GST basics, registration requirements, tax structure, return filing, input tax credit, and compliance obligations for businesses.

The GST Framework: Understanding the Structure

GST is a **destination-based, multi-stage, comprehensive tax** levied on the supply of goods and services. It subsumes numerous earlier indirect taxes including:

- **Central taxes**: Central Excise Duty, Service Tax, Additional Customs Duty, Special Additional Duty of Customs, Central Sales Tax

- **State taxes**: State VAT, Entry Tax, Purchase Tax, Luxury Tax, Entertainment Tax, Octroi, Local Body Tax

Types of GST

| Type | Full Form | Applicable To | Collected By |

|---|---|---|---|

| **CGST** | Central Goods and Services Tax | Intra-state supply | Central Government |

| **SGST** | State Goods and Services Tax | Intra-state supply | State Government |

| **IGST** | Integrated Goods and Services Tax | Inter-state supply and imports | Central Government (shared with destination state) |

| **UTGST** | Union Territory Goods and Services Tax | Supply within a Union Territory | Union Territory administration |

How It Works

- **Intra-state supply** (within the same state): CGST + SGST are levied in equal proportion. For example, if the GST rate is 18%, CGST of 9% and SGST of 9% are levied.

- **Inter-state supply** (between two states): IGST is levied at the full rate. For example, if the GST rate is 18%, IGST of 18% is levied.

- **Supply within a Union Territory**: CGST + UTGST are levied.

- **Import of goods**: IGST is levied (along with customs duty, if applicable).

GST Registration

Who Must Register? (Section 22 CGST Act)

**Section 22** of the CGST Act mandates GST registration for every supplier whose **aggregate turnover** in a financial year exceeds the prescribed threshold:

| Category | Threshold Limit |

|---|---|

| **Supply of goods** | Rs. 40 lakh (Rs. 20 lakh for special category states) |

| **Supply of services** | Rs. 20 lakh (Rs. 10 lakh for special category states) |

**Special category states** (as per Article 279A(4)(g) of the Constitution) include states in the North-East (Manipur, Mizoram, Nagaland, Tripura, etc.), Himachal Pradesh, Uttarakhand, Sikkim, and Jammu & Kashmir.

Mandatory Registration (Section 24 CGST Act)

**Section 24** specifies categories of persons who must obtain GST registration **irrespective of turnover**:

1. **Inter-state suppliers**: Persons making taxable inter-state supply of goods or services

2. **Casual taxable persons**: Persons who occasionally supply goods/services in a state where they have no fixed place of business

3. **Non-resident taxable persons**: Persons who supply goods/services but have no fixed place of business in India

4. **Persons liable to pay tax under reverse charge mechanism**

5. **E-commerce operators** and persons supplying through e-commerce platforms (in certain categories)

6. **Input Service Distributors (ISD)**

7. **TDS deductors** under Section 51

8. **TCS collectors** under Section 52

9. **Agents of a registered supplier**

10. **Non-resident online service providers** (OIDAR services -- Online Information and Database Access or Retrieval services)

GSTIN: GST Identification Number

Upon registration, each taxpayer is assigned a **15-digit GSTIN (Goods and Services Tax Identification Number)**. The structure is:

- First 2 digits: State code

- Next 10 digits: PAN of the entity

- 13th digit: Registration number within the state

- 14th digit: "Z" by default

- 15th digit: Check digit

Registration Process

1. Visit the **GST portal (gst.gov.in)**

2. Fill **Form GST REG-01** (application for registration)

3. Upload required documents (PAN, Aadhaar, address proof, bank details, authorisation letter, photographs)

4. Verification through Aadhaar-based authentication or document verification

5. **Registration certificate** (Form GST REG-06) is issued within **7 working days** if the application is found to be in order

6. Registration is effective from the date of application or from the date of liability to register (whichever is applicable)

GST Rates

GST rates are decided by the **GST Council** (a constitutional body under Article 279A) and are classified into the following slabs:

| Rate | Category | Examples |

|---|---|---|

| **0% (Exempt)** | Essential goods and services | Fresh fruits, vegetables, milk, education, healthcare |

| **5%** | Common necessities | Packaged food items, footwear below Rs. 1,000, economy air travel, transport services |

| **12%** | Standard goods | Processed food, mobile phones, business class air travel, work contracts |

| **18%** | Most goods and services | Most manufactured goods, IT services, financial services, telecom, restaurants (with ITC) |

| **28%** | Luxury and demerit goods | Luxury cars, aerated drinks, tobacco products, cement, air conditioners |

Additionally, a **Compensation Cess** is levied on certain luxury and demerit goods (tobacco, coal, aerated drinks, luxury cars) to compensate states for revenue loss due to GST implementation. This cess was initially intended for five years but has been extended.

Composition Scheme (Section 10 CGST Act)

The **Composition Scheme** is a simplified compliance scheme for small taxpayers.

Eligibility

- Annual aggregate turnover must not exceed **Rs. 1.5 crore** (Rs. 75 lakh for special category states)

- For service providers, the limit is **Rs. 50 lakh**

- Must not be engaged in inter-state supply of goods

- Must not be supplying through e-commerce operators

- Must not be a manufacturer of certain notified goods (ice cream, pan masala, tobacco)

Tax Rates Under Composition Scheme

| Category | Tax Rate |

|---|---|

| Manufacturers | 1% (0.5% CGST + 0.5% SGST) |

| Traders (supply of goods) | 1% (0.5% CGST + 0.5% SGST) |

| Restaurants (not serving alcohol) | 5% (2.5% CGST + 2.5% SGST) |

| Service providers (Rs. 50 lakh limit) | 6% (3% CGST + 3% SGST) |

Restrictions

- Cannot charge GST on invoices (must mention "Composition taxable person" on invoices)

- Cannot claim **input tax credit (ITC)**

- Cannot make inter-state supplies

- Must file simplified quarterly returns (Form CMP-08) instead of monthly returns

GST Returns: Filing Requirements

Key Returns

| Return | Purpose | Who Must File | Frequency | Due Date |

|---|---|---|---|---|

| **GSTR-1** | Details of outward supplies (sales) | All registered taxpayers | Monthly (or quarterly under QRMP scheme) | 11th of next month (13th for quarterly) |

| **GSTR-3B** | Summary return with tax payment | All registered taxpayers | Monthly (or quarterly under QRMP scheme) | 20th of next month (22nd/24th for quarterly) |

| **GSTR-9** | Annual return | All registered taxpayers (turnover above Rs. 2 crore) | Annual | 31st December of following FY |

| **GSTR-9C** | Reconciliation statement (self-certified) | Taxpayers with turnover above Rs. 5 crore | Annual | 31st December of following FY |

| **CMP-08** | Quarterly statement-cum-challan | Composition taxpayers | Quarterly | 18th of the month following the quarter |

| **GSTR-4** | Annual return for composition dealers | Composition taxpayers | Annual | 30th April of following FY |

GSTR-1: Outward Supply Details

GSTR-1 is a detailed return of all outward supplies (sales) made during the tax period. It includes:

- Invoice-wise details of all B2B (business-to-business) supplies

- Consolidated details of B2C (business-to-consumer) supplies

- Credit notes and debit notes issued

- Exports

- Amendments to previously reported invoices

GSTR-3B: Summary Return

GSTR-3B is a monthly self-declaration return that includes:

- Summary of outward supplies and tax liability

- Inter-state supplies to unregistered persons and composition dealers

- Eligible ITC claimed

- Tax payable and paid (CGST, SGST, IGST, Cess)

**Tax payment** must be made at the time of filing GSTR-3B. Late filing attracts **late fees** (Rs. 50 per day for CGST and SGST each; Rs. 20 per day for nil returns) and **interest** at 18% per annum on the tax payable.

QRMP Scheme

Taxpayers with aggregate turnover up to **Rs. 5 crore** can opt for the **Quarterly Return Monthly Payment (QRMP) scheme**, which allows:

- Filing GSTR-1 and GSTR-3B **quarterly** instead of monthly

- Making monthly tax payments through a challan (Form GST PMT-06)

- Using the **Invoice Furnishing Facility (IFF)** to report B2B invoices in the first two months of each quarter

Input Tax Credit (ITC)

What Is ITC?

**Input Tax Credit (ITC)** is the mechanism by which a registered taxpayer can reduce their tax liability by claiming credit for the GST already paid on inputs (goods and services used in the business). ITC is the backbone of the GST system, ensuring that tax is effectively levied only on the **value addition** at each stage.

Conditions for Claiming ITC (Section 16 CGST Act)

**Section 16** of the CGST Act prescribes the following conditions for claiming ITC:

1. **Possession of tax invoice or debit note** issued by the supplier

2. **Receipt of goods or services**

3. **Tax has actually been paid** to the government by the supplier (verified through GSTR-2B auto-generated statement)

4. **Filing of return** by the recipient (GSTR-3B)

5. The credit must be claimed within the **prescribed time limit** (currently, the due date for filing the September return of the following financial year or the date of filing the annual return, whichever is earlier)

6. The supplier must have uploaded the invoice in their **GSTR-1**, and it must appear in the recipient's **GSTR-2B**

ITC Matching and GSTR-2B

With effect from 1 January 2022, ITC claims are matched against the auto-generated **GSTR-2B** statement. This is a system-generated statement based on the details uploaded by suppliers in their GSTR-1. Taxpayers can claim ITC only if the invoices appear in their GSTR-2B, subject to certain tolerance limits.

Blocked Credits (Section 17(5) CGST Act)

**Section 17(5)** lists items on which ITC is **not available** (blocked credits):

1. **Motor vehicles and conveyances** (except when used for making taxable supplies of transportation, training to drive, or further supply of such vehicles)

2. **Food and beverages, outdoor catering, beauty treatment, health services, cosmetic and plastic surgery** (unless used for making outward supply of similar services or as an element of a taxable composite or mixed supply)

3. **Membership of a club, health and fitness centre**

4. **Rent-a-cab, life insurance, health insurance** (with exceptions for employer-mandated services and those used for further supply)

5. **Travel benefits extended to employees on vacation** (such as Leave Travel Concession)

6. **Works contract services** for construction of immovable property (except where it is an input service for further supply of works contract)

7. **Construction of immovable property on own account** (including construction of plant and machinery)

8. **Goods or services received by a non-resident taxable person** (except on goods imported by him)

9. **Goods or services used for personal consumption**

10. **Goods lost, stolen, destroyed, written off, or disposed of by way of gift or free samples**

11. **Tax paid under composition scheme**

E-Invoicing

What Is E-Invoicing?

E-invoicing is a system where **B2B invoices** are electronically authenticated by the GST Network (GSTN) through the **Invoice Registration Portal (IRP)**. The system generates a unique **Invoice Reference Number (IRN)** and a **QR code** for each invoice.

Applicability

E-invoicing has been progressively extended to cover more businesses:

| From Date | Turnover Threshold |

|---|---|

| 1 October 2020 | Above Rs. 500 crore |

| 1 January 2021 | Above Rs. 100 crore |

| 1 April 2021 | Above Rs. 50 crore |

| 1 April 2022 | Above Rs. 20 crore |

| 1 October 2022 | Above Rs. 10 crore |

| 1 August 2023 | Above Rs. 5 crore |

Benefits

- Reduces data entry errors and duplication

- Auto-populates GSTR-1 and e-way bill details

- Enables real-time reporting and faster ITC reconciliation

- Reduces tax evasion

E-Way Bill

What Is an E-Way Bill?

An **E-Way Bill** is an electronic document required for the **movement of goods** valued above **Rs. 50,000** (or as notified by the respective state). It is generated on the **E-Way Bill portal (ewaybillgst.gov.in)**.

When Is It Required?

- **Inter-state movement** of goods valued above Rs. 50,000

- **Intra-state movement** (as per state-specific rules, most states follow the Rs. 50,000 threshold)

- Movement due to supply, reasons other than supply (job work, return), or inward supply from an unregistered person

Validity

| Distance | Validity |

|---|---|

| Up to 200 km | 1 day |

| For every additional 200 km | 1 additional day |

| Over-dimensional cargo: Up to 20 km | 1 day |

| Over-dimensional cargo: For every additional 20 km | 1 additional day |

Non-Generation of E-Way Bill

Failure to generate an e-way bill when required can result in:

- **Detention of goods and vehicle** under Section 129 CGST Act

- **Penalty** equal to the tax evaded or Rs. 10,000, whichever is greater

- Release of goods upon payment of applicable tax and penalty

Penalties for Non-Compliance

The CGST Act prescribes penalties for various non-compliance issues:

| Offence | Penalty |

|---|---|

| **Late filing of returns** | Rs. 50 per day (CGST + SGST) per return; Rs. 20 per day for nil return; capped at Rs. 10,000 per return |

| **Late payment of tax** | Interest at 18% per annum on the tax due |

| **Non-registration** | Penalty equal to the tax due or Rs. 10,000, whichever is higher (Section 122) |

| **Issuing false invoice** | 100% of tax amount or Rs. 10,000, whichever is higher |

| **Fraudulent ITC claim** | 100% of tax amount or Rs. 10,000, whichever is higher; may attract prosecution |

| **Failure to issue invoice** | Rs. 10,000 or the tax due, whichever is higher |

| **Non-compliance with e-invoicing** | Rs. 10,000 for each invoice (from 1 November 2023) |

Prosecution (Section 132)

For serious offences involving fraud or tax evasion exceeding specified limits, the CGST Act provides for **criminal prosecution** with imprisonment ranging from **six months to five years** and fine. Offences attracting prosecution include:

- Issuing invoices without supply of goods/services

- Fraudulently availing ITC without receiving goods/services

- Collecting GST but failing to deposit it with the government (for amounts exceeding Rs. 2 crore)

Recent Amendments and Updates

Key Changes Effective from Recent Council Meetings

The **GST Council** meets periodically and recommends changes to rates, rules, and procedures. Some notable recent developments include:

1. **Rationalisation of rates**: The GST Council has been considering a rationalisation of the rate structure, potentially merging certain slabs.

2. **ITC conditions strengthened**: The mandatory matching of ITC with GSTR-2B has been strictly enforced, with Rule 36(4) capping ITC claims at 100% of the matched credits.

3. **E-invoicing threshold lowered**: Extended to businesses with turnover above Rs. 5 crore.

4. **GST Appellate Tribunal**: The establishment of the **GST Appellate Tribunal (GSTAT)** to hear appeals against orders of the first appellate authority has been operationalised, providing an independent appellate mechanism.

5. **Amnesty schemes**: Periodic amnesty schemes have been introduced for late filing and compliance regularisation.

Frequently Asked Questions (FAQ)

**Q1: What is the GST registration threshold for businesses?**

For suppliers of goods, the threshold is **Rs. 40 lakh** (Rs. 20 lakh for special category states). For suppliers of services, it is **Rs. 20 lakh** (Rs. 10 lakh for special category states). However, certain categories of businesses must register irrespective of turnover (Section 24 CGST Act).

**Q2: What is the difference between CGST, SGST, and IGST?**

**CGST** (Central GST) and **SGST** (State GST) are levied on intra-state supplies in equal proportion. **IGST** (Integrated GST) is levied on inter-state supplies and imports. For example, if the GST rate is 18%, intra-state supply attracts 9% CGST + 9% SGST, while inter-state supply attracts 18% IGST.

**Q3: What is the Composition Scheme and who can opt for it?**

The Composition Scheme is a simplified compliance option for small businesses with turnover up to Rs. 1.5 crore (Rs. 75 lakh for special category states). Composition dealers pay tax at a lower rate (1-6%) but cannot claim ITC or make inter-state supplies.

**Q4: How do I claim Input Tax Credit (ITC)?**

ITC can be claimed on inputs (goods and services) used for business purposes, provided the supplier has uploaded the invoice in their GSTR-1, the invoice appears in your GSTR-2B, you have received the goods/services, and you have filed your GSTR-3B return.

**Q5: What happens if I file GST returns late?**

Late filing attracts a **late fee** of Rs. 50 per day per return (Rs. 20 for nil returns) capped at Rs. 10,000, plus **interest at 18%** per annum on the outstanding tax liability. Consistent non-filing may also lead to cancellation of GST registration.

**Q6: Is e-invoicing mandatory for my business?**

E-invoicing is mandatory for businesses with aggregate turnover exceeding **Rs. 5 crore** in any financial year (as of the latest threshold). The threshold has been progressively lowered and may be further reduced.

**Q7: What is an E-Way Bill and when is it required?**

An E-Way Bill is required for the movement of goods valued above Rs. 50,000. It must be generated before the commencement of movement and is valid for a period based on the distance of transportation.

**Q8: Can GST registration be cancelled?**

Yes. GST registration can be cancelled suo motu by the tax authorities (for non-filing of returns for six consecutive months, fraud, etc.) or voluntarily by the taxpayer (if the business is discontinued or turnover falls below the threshold). Cancellation requires filing of a final return within three months.

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Disclaimer

This article is published for **educational and informational purposes only** and does not constitute legal, tax, or professional advice or a solicitation for services. The information provided is based on the Central Goods and Services Tax Act, 2017, the Integrated Goods and Services Tax Act, 2017, the respective State GST Acts, GST Rules, notifications, circulars, and judicial pronouncements as of the date of publication. GST laws, rates, and procedures are subject to frequent changes through Council recommendations, notifications, and amendments. Readers are advised to consult a qualified tax professional or chartered accountant for advice specific to their circumstances. The author and JuristCo.com disclaim any liability for actions taken based on the contents of this article.