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HomeGuidesGST Guide
FY 2025-26 · AY 2026-27
Updated July 2026

GST Guide: Introduction, Compliance, Updates, and MoreYour complete resource for understanding GST in FY 2025-26

Navigate the complexities of GST with our detailed guide covering rates, returns, registration, and more for FY 2025-26.

GST Guide Contents
1

Introduction to GST


2

GST Rates & HSN Codes


3

GST Returns


4

GST Registration


5

GST Invoicing/Billing


6

Composition Scheme


7

Time, Place & Value of Supply


8

Input Tax Credit


9

GST Accounting & Records


10

GST Payments & Refund


11

e-Invoicing


12

e-Way Bill


13

GST Penalties & Appeals


14

GST Procedure


15

FAQs on GST

Introduction to GST

  1. What is GST?

    Goods and Services Tax (GST) is a comprehensive, multi-stage, destination-based tax that is levied on every value addition.

    • Introduced in India on July 1, 2017.

    • Replaced multiple indirect taxes like VAT, service tax, etc.

    • Aims to create a single, unified market.

  2. GST Structure

    GST is structured into CGST, SGST, and IGST to manage intra-state and inter-state transactions.

    • CGST and SGST are levied on intra-state supplies.

    • IGST is levied on inter-state supplies.

    • Rates vary based on the type of goods and services.

  3. GST Council

    The GST Council is responsible for making recommendations on GST laws and rates.

    • Chaired by the Union Finance Minister.

    • Includes state finance ministers.

    • Meets periodically to review and revise GST policies.

  4. Benefits of GST

    GST simplifies the tax structure and reduces the cascading effect of taxes.

    • Eliminates the tax on tax effect.

    • Facilitates easier compliance.

    • Promotes a transparent tax system.

GST Rates & HSN Codes

  1. GST Rates Overview

    GST rates are categorized into 0%, 5%, 12%, 18%, and 28% based on the type of goods and services.

    • Essential goods often fall under the 0% or 5% category.

    • Standard goods and services are taxed at 18%.

    • Luxury items are taxed at 28%.

  2. HSN Codes

    Harmonized System of Nomenclature (HSN) codes classify goods for taxation purposes.

    • Mandatory for businesses with turnover above ₹1.5 crore.

    • Helps in systematic classification of goods.

    • Facilitates international trade.

  3. Examples of GST Rates

    Understanding GST rates with examples helps in accurate tax calculation.

    • 5% GST on essential items like food grains.

    • 18% GST on services like telecom and IT.

    • 28% GST on luxury cars and tobacco products.

  4. Changes in GST Rates

    GST rates are subject to change based on economic conditions and government policies.

    • Reviewed periodically by the GST Council.

    • Recent changes include reduction in rates for electric vehicles.

    • Stay updated with official notifications.

GST Returns

  1. Types of GST Returns

    Various GST returns need to be filed based on the type of taxpayer and nature of business.

    • GSTR-1 for outward supplies.

    • GSTR-3B for summary return and tax payment.

    • GSTR-9 for annual return.

  2. Filing Deadlines

    Timely filing of GST returns is crucial to avoid penalties.

    • GSTR-1 is due on the 11th of the following month.

    • GSTR-3B is due on the 20th of the following month.

    • Annual return GSTR-9 is due by December 31st.

  3. Late Fees and Penalties

    Failing to file GST returns on time attracts late fees and penalties.

    • ₹50 per day for late filing of GSTR-3B.

    • ₹200 per day for late filing of GSTR-9.

    • Maximum penalty capped at 0.25% of turnover.

  4. Amendments and Corrections

    Corrections in GST returns can be made in subsequent returns.

    • Amendments allowed in GSTR-1 for the next tax period.

    • No amendments allowed in GSTR-3B.

    • Ensure accuracy to avoid discrepancies.

GST Registration

  1. Who Needs to Register?

    GST registration is mandatory for businesses exceeding the threshold turnover.

    • Threshold limit is ₹20 lakh for services.

    • ₹40 lakh for goods in most states.

    • Special category states have a lower threshold.

  2. Registration Process

    The GST registration process is online and can be completed on the GST portal.

    • Submit Form GST REG-01.

    • Verification and approval by tax authorities.

    • Receive GSTIN upon successful registration.

  3. Documents Required

    Certain documents are required to complete the GST registration process.

    • PAN card of the business or applicant.

    • Proof of business registration or incorporation.

    • Identity and address proof of promoters/directors.

  4. Voluntary Registration

    Businesses below the threshold can opt for voluntary registration.

    • Allows input tax credit claims.

    • Enhances business credibility.

    • Subject to regular GST compliance.

GST Invoicing/Billing

  1. Invoice Essentials

    GST invoices must contain specific details to be valid.

    • Supplier's name, address, and GSTIN.

    • Invoice number and date.

    • Description of goods/services and HSN code.

  2. Types of Invoices

    Different types of invoices are used based on the nature of supply.

    • Tax Invoice for regular taxable supplies.

    • Bill of Supply for exempted goods/services.

    • Receipt Voucher for advance payments.

  3. Time Limit for Issuing Invoices

    Invoices must be issued within a specific time frame to ensure compliance.

    • For goods, before or at the time of removal/delivery.

    • For services, within 30 days from the date of supply.

    • Ensure timely issuance to avoid penalties.

  4. Revised Invoices

    Revised invoices are issued to correct errors in original invoices.

    • Can be issued for any supply made between GST registration and issuance of GSTIN.

    • Must be clearly marked as 'Revised Invoice'.

    • Ensure all original invoice details are included.

Composition Scheme

  1. Eligibility Criteria

    The Composition Scheme is designed for small taxpayers to simplify GST compliance.

    • Turnover limit up to ₹1.5 crore.

    • Not applicable for service providers (except restaurant services).

    • Cannot make inter-state supplies.

  2. Benefits of Composition Scheme

    The scheme offers several benefits to eligible taxpayers.

    • Reduced tax rates (1% for manufacturers and traders).

    • Simplified return filing (quarterly).

    • Less compliance burden.

  3. Limitations of Composition Scheme

    There are certain limitations to consider before opting for the scheme.

    • Cannot claim input tax credit.

    • Cannot issue tax invoices.

    • Not eligible for inter-state sales.

  4. Procedure to Opt for Composition Scheme

    Taxpayers can opt for the scheme at the beginning of the financial year.

    • File GST CMP-02 on the GST portal.

    • Intimate the tax authorities.

    • Comply with the conditions throughout the year.

Time, Place & Value of Supply

  1. Time of Supply

    Determining the time of supply is crucial for tax liability.

    • For goods, it's the earliest of invoice issuance or payment receipt.

    • For services, it's the earliest of invoice issuance or payment receipt.

    • Special provisions for continuous supply.

  2. Place of Supply

    Place of supply determines whether a transaction is intra-state or inter-state.

    • For goods, generally the location where goods are delivered.

    • For services, the location of the recipient.

    • Special rules for certain services like transportation.

  3. Value of Supply

    The value of supply is the transaction value, including all taxes except GST.

    • Includes incidental expenses like packing and commission.

    • Excludes discounts if mentioned on the invoice.

    • Special valuation rules for certain transactions.

  4. Worked Example

    Calculating GST on a transaction using time, place, and value of supply.

    • A trader sells goods worth ₹1,00,000 to another state.

    • IGST applicable at 18%: ₹18,000.

    • Total invoice value: ₹1,18,000.

Input Tax Credit

  1. Eligibility for ITC

    Input Tax Credit (ITC) allows businesses to reduce tax paid on inputs from tax payable on output.

    • Available only for registered taxpayers.

    • Goods/services must be used for business purposes.

    • ITC not available for personal use or exempt supplies.

  2. Conditions for Claiming ITC

    Certain conditions must be met to claim ITC.

    • Possession of a tax invoice or debit note.

    • Receipt of goods/services.

    • Tax charged has been paid to the government.

  3. Blocked Credits

    Certain credits are blocked and cannot be claimed as ITC.

    • Motor vehicles for personal use.

    • Membership of clubs, health, and fitness centers.

    • Goods/services used for personal consumption.

  4. Reversal of ITC

    ITC must be reversed in certain situations.

    • If payment is not made to the supplier within 180 days.

    • If goods are lost, stolen, or destroyed.

    • When inputs are used for exempt supplies.

GST Accounting & Records

  1. Mandatory Records

    GST law mandates the maintenance of specific records for compliance.

    • Sales and purchase registers.

    • Stock register.

    • Input tax credit availed and utilized.

  2. Accounting Software

    Using GST-compliant accounting software can simplify record-keeping.

    • Automates GST calculations.

    • Generates GST-compliant invoices.

    • Facilitates easy filing of returns.

  3. Audit Requirements

    Businesses with turnover above a certain limit must undergo GST audit.

    • Applicable for turnover exceeding ₹5 crore.

    • Audit to be conducted by a CA or CMA.

    • Submission of audit report in Form GSTR-9C.

  4. Retention Period

    Records must be retained for a specified period for audit and verification.

    • Minimum retention period is 6 years.

    • Period calculated from the due date of filing annual return.

    • Ensure records are easily accessible.

GST Payments & Refund

  1. Modes of Payment

    GST payments can be made through various modes for convenience.

    • Online payment via net banking.

    • Over-the-counter payment at authorized banks.

    • NEFT/RTGS for large payments.

  2. Challan Generation

    A challan must be generated for making GST payments.

    • Generated using Form GST PMT-06.

    • Contains details of tax, interest, penalty, fees, etc.

    • Valid for 15 days from the date of generation.

  3. Refund Process

    GST refunds can be claimed for excess tax paid or input tax credit.

    • File Form GST RFD-01 for claiming refund.

    • Refund processed within 60 days of application.

    • Interest payable if refund is delayed beyond 60 days.

  4. Interest on Late Payment

    Interest is charged on late payment of GST dues.

    • 18% per annum for late payment of tax.

    • 24% per annum for undue/excess claim of ITC.

    • Calculated from the next day of the due date.

e-Invoicing

  1. Applicability of e-Invoicing

    e-Invoicing is mandatory for businesses with turnover above a certain threshold.

    • Applicable for businesses with turnover above ₹10 crore.

    • Ensures standardization and interoperability.

    • Facilitates real-time tracking of invoices.

  2. Benefits of e-Invoicing

    e-Invoicing offers numerous benefits for businesses.

    • Reduces invoice mismatches.

    • Automates tax return preparation.

    • Enhances compliance and reduces fraud.

  3. Process of e-Invoicing

    The e-Invoicing process involves generating and validating invoices electronically.

    • Generate invoice using accounting software.

    • Upload to Invoice Registration Portal (IRP).

    • Receive Invoice Reference Number (IRN) and QR code.

  4. Integration with GST Portal

    e-Invoices are seamlessly integrated with the GST portal.

    • Auto-population of invoice details in GSTR-1.

    • Facilitates easy reconciliation.

    • Reduces manual data entry errors.

e-Way Bill

  1. What is an e-Way Bill?

    An e-Way Bill is a document required for the movement of goods exceeding a certain value.

    • Mandatory for goods valued over ₹50,000.

    • Generated electronically on the e-Way Bill portal.

    • Ensures compliance during transportation.

  2. Validity of e-Way Bill

    The validity of an e-Way Bill depends on the distance to be covered.

    • 1 day for every 100 km for regular vehicles.

    • Additional day for every 100 km thereafter.

    • Validity can be extended under certain conditions.

  3. Exceptions to e-Way Bill

    Certain goods and situations are exempt from e-Way Bill requirements.

    • Goods transported by non-motorized conveyance.

    • Transport within 50 km of the supplier's location.

    • Transport of exempted goods.

  4. Penalties for Non-Compliance

    Non-compliance with e-Way Bill rules attracts penalties.

    • Penalty of ₹10,000 or tax sought to be evaded, whichever is higher.

    • Detention and seizure of goods and vehicle.

    • Release upon payment of applicable tax and penalty.

GST Penalties & Appeals

  1. Types of Penalties

    GST law prescribes various penalties for non-compliance.

    • Late filing of returns attracts a late fee.

    • Failure to register attracts a penalty of 10% of tax due.

    • Fraudulent activities attract a penalty of 100% of tax due.

  2. Appeal Process

    Taxpayers can appeal against GST orders through a structured process.

    • File appeal within 3 months of order.

    • Appeal to be filed in Form GST APL-01.

    • Appeals can be made to Appellate Authority and Tribunal.

  3. Compounding of Offences

    Certain offences can be compounded to avoid litigation.

    • Compounding application in Form GST CPD-01.

    • Compounding fee ranges from ₹10,000 to ₹30,000.

    • Not applicable for repeat offenders.

  4. Worked Example

    Example of penalty calculation for late filing.

    • Late filing of GSTR-3B for 10 days.

    • Late fee: ₹50 per day x 10 days = ₹500.

    • Ensure timely filing to avoid penalties.

GST Procedure

  1. GST Registration Procedure

    Detailed steps for GST registration.

    • Visit the GST portal and click on 'Register Now'.

    • Fill in Part A of Form GST REG-01.

    • Receive ARN and complete Part B with required documents.

  2. Filing GST Returns

    Step-by-step guide to filing GST returns.

    • Log in to the GST portal.

    • Select the return form applicable (e.g., GSTR-1, GSTR-3B).

    • Fill in details and submit before the due date.

  3. Payment of GST

    Procedure for making GST payments.

    • Generate challan using Form GST PMT-06.

    • Choose payment mode (online, OTC, NEFT/RTGS).

    • Complete payment and download the receipt.

  4. Claiming Refunds

    Steps to claim GST refunds.

    • File Form GST RFD-01 on the GST portal.

    • Provide necessary documents and details.

    • Track refund status online and receive within 60 days.

FAQs on GST

What is the GST rate for essential goods?

Essential goods are generally taxed at a lower GST rate of 5%. Some essential items may even fall under the 0% tax bracket, depending on government notifications.


How often do I need to file GST returns?

Regular taxpayers must file GSTR-1 monthly by the 11th and GSTR-3B by the 20th of the following month. An annual return in GSTR-9 is due by December 31st of the next financial year.


Can I claim ITC on all business expenses?

ITC can be claimed on business expenses that are used for taxable supplies. However, ITC is not available for personal expenses, exempt supplies, or blocked credits like motor vehicles for personal use.


What is the penalty for late filing of GST returns?

The penalty for late filing of GSTR-3B is ₹50 per day, while for GSTR-9, it is ₹200 per day. The maximum penalty is capped at 0.25% of the turnover in the state.


How do I generate an e-Way Bill?

To generate an e-Way Bill, log in to the e-Way Bill portal, enter the required details like invoice number, transporter's ID, and goods description, and submit to receive the e-Way Bill number.


Is e-Invoicing mandatory for all businesses?

e-Invoicing is mandatory for businesses with a turnover above ₹10 crore. It ensures standardization and facilitates real-time tracking of invoices, reducing mismatches and fraud.


What documents are required for GST registration?

Documents required for GST registration include the PAN card, proof of business registration, identity and address proof of promoters, and bank account details.


Can I opt for the Composition Scheme if I provide services?

The Composition Scheme is primarily for manufacturers and traders with a turnover up to ₹1.5 crore. Service providers, except those offering restaurant services, are generally not eligible.


What is the retention period for GST records?

GST records must be retained for a minimum period of 6 years from the due date of filing the annual return for the year to which the records pertain. This ensures compliance and facilitates audits.


How can I claim a GST refund?

To claim a GST refund, file Form GST RFD-01 on the GST portal, provide necessary documents and details, and track the refund status online. Refunds are processed within 60 days of the application.

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