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| GST Glossary A–Z – Your complete GST dictionary featuring 300+ GST terms, definitions, and concepts explained in simple language. Learn GST registration, returns, Input Tax Credit (ITC), invoicing, e-way bills, refunds, compliance, HSN codes, SAC codes, and business taxation terminology to improve compliance and confidently navigate India's GST system. |
GST Glossary A–Z Terms
Complete GST Dictionary, GST Terminology Guide & Goods and Services Tax Reference Hub
Effective Date: July 2, 2026
Last Updated: July 2, 2026
Review Schedule: Quarterly Review and Updates as Required
Financial Disclaimer
The information provided on this page is for general educational and informational purposes only. It should not be considered tax, legal, accounting, financial, or professional advice. GST laws, rules, notifications, procedures, and compliance requirements may change over time. Always verify important information through official government sources or qualified professionals.
Government Affiliation Disclosure
TaxLook is an independent educational platform. We are not affiliated with, endorsed by, authorized by, or associated with the Government of India, GST Council, GSTN, CBIC, Income Tax Department, or any government authority.
What is a GST Glossary?
A GST Glossary is an alphabetical reference guide containing GST definitions, abbreviations, compliance terminology, registration terms, invoice-related concepts, return filing terminology, and Input Tax Credit (ITC) concepts used in India's Goods and Services Tax system.
How to Use This GST Glossary
Select a letter from the A–Z navigation below.
Locate the GST term you want to understand.
Read the simplified definition.
Explore related GST guides and resources.
Verify compliance requirements through official government sources where necessary.
Quick Navigation
A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z
Understanding GST Starts with Understanding GST Terms
Goods and Services Tax (GST) is one of India's most important indirect tax systems. Whether you are a business owner, startup founder, accountant, tax professional, freelancer, consultant, e-commerce seller, student, entrepreneur, or taxpayer, understanding GST terminology is essential for registration, invoicing, return filing, Input Tax Credit (ITC), audits, refunds, compliance management, and business taxation.
This GST Glossary A–Z is designed to simplify GST concepts through easy-to-understand definitions and serve as a practical reference guide for everyday GST learning.
A
Aadhaar Authentication
A verification process used during GST registration and compliance procedures.
Adjudication
The legal process of resolving GST disputes and tax-related issues.
Aggregate Turnover
The total value of taxable supplies, exempt supplies, exports, and inter-state supplies of a business.
Annual Return
A yearly GST return summarizing GST transactions and compliance activities.
Assessment
The determination of GST liability under applicable tax provisions.
B
Bill of Supply
A document issued when GST cannot be charged on a transaction.
Business Vertical
A distinguishable component of a business engaged in specific economic activities.
B2B Transaction
A transaction between two registered businesses.
B2C Transaction
A transaction between a business and an end consumer.
Branch Transfer
Movement of goods between business locations under prescribed GST provisions.
C
Cash Ledger
An electronic GST account reflecting tax deposits made by taxpayers.
CGST
Central Goods and Services Tax collected by the Central Government.
Composite Supply
Multiple goods or services supplied together as a naturally bundled transaction.
Composition Scheme
A simplified GST compliance scheme for eligible small taxpayers.
Credit Note
A document issued to reduce taxable value or tax liability.
D
Debit Note
A document issued to increase taxable value or GST liability.
Deemed Export
Specified supplies treated as exports under GST law.
Demand Notice
An official notice seeking payment of tax, interest, or penalties.
Direct Tax
A tax paid directly by taxpayers, unlike GST which is an indirect tax.
Digital Signature Certificate (DSC)
Electronic authentication used for GST filings and registrations.
E
E-Commerce Operator
An entity facilitating online supply of goods or services.
E-Invoice
A GST invoice generated through a prescribed electronic invoicing system.
E-Way Bill
An electronic document required for transportation of goods above prescribed limits.
Electronic Cash Ledger
Online GST ledger reflecting tax payments.
Electronic Credit Ledger
Online ledger reflecting Input Tax Credit balances.
F
Filing Period
The period for which a GST return is filed.
Final Return
The return filed upon cancellation of GST registration.
Financial Year
The accounting year used for GST compliance and reporting.
Freight Charges
Transportation costs that may impact GST calculations.
Forward Charge
The standard GST payment mechanism where suppliers pay GST.
G
GST
Goods and Services Tax.
GST Act
The legislation governing GST implementation and compliance.
GST Council
The constitutional body responsible for GST policy recommendations.
GSTIN
Goods and Services Tax Identification Number assigned to registered taxpayers.
GST Practitioner
A professional authorized to assist taxpayers with GST compliance.
H
HSN Code
Harmonized System of Nomenclature used for classifying goods under GST.
High-Risk Taxpayer
A taxpayer identified through risk parameters for additional verification or compliance monitoring under GST administration.
Harmonized Classification
A globally accepted coding system for products.
Head Office
The principal place of business of an organization.
High Sea Sale
Sale of imported goods before customs clearance.
I
IGST
Integrated Goods and Services Tax applicable to inter-state transactions.
Import of Goods
Bringing goods into India from another country.
Import of Services
Receiving services from suppliers located outside India.
Input Service
A service used for business operations.
Input Tax Credit (ITC)
Credit available for GST paid on eligible business purchases.
J
Job Work
Processing goods on behalf of another registered taxpayer.
Joint Commissioner
A GST administrative officer.
Jurisdiction
The GST authority assigned to a taxpayer.
Judicial Authority
Authority involved in GST dispute resolution.
Joint Venture
A business arrangement that may have GST implications.
K
KYC
Know Your Customer verification used in GST registration and compliance.
Keyman Insurance
Insurance policy sometimes relevant in business taxation.
Knowledge Process Outsourcing (KPO)
Specialized business services potentially subject to GST.
L
LUT
Letter of Undertaking used by exporters.
Late Fee
A fee payable for delayed GST return filing.
Ledger
An electronic record of GST transactions.
Liability Ledger
GST account showing tax obligations.
Local Supply
Supply occurring within a state or union territory.
M
Mixed Supply
Two or more individual supplies made together for a single price.
Manufacturer
A person engaged in production activities.
Monthly Return
GST return filed monthly by eligible taxpayers.
Matching Concept
Verification of transaction details between parties.
Mobile GST Compliance
GST compliance processes performed digitally.
N
NIL Return
A GST return showing no taxable transactions.
Non-Resident Taxable Person
A person supplying goods or services in India without a fixed place of business.
Notification
Official GST announcements issued by authorities.
Net Tax Liability
Final GST payable after adjustments.
National Anti-Profiteering Authority
Authority addressing GST profiteering concerns.
O
Output Tax
GST collected on outward supplies.
Online GST Filing
Electronic submission of GST returns.
OIDAR Services
Online Information and Database Access or Retrieval Services.
Outstanding Demand
Unpaid GST liabilities.
Official GST Portal
Government platform for GST compliance.
P
Place of Supply
Rules determining the location of a taxable supply.
Principal Place of Business
Primary business location registered under GST.
Penalty
Financial consequence for non-compliance.
Provisional Assessment
Temporary GST assessment pending final determination.
Purchase Register
Record of business purchases.
Q
Quarterly Return
GST return filed every quarter by eligible taxpayers.
QRMP Scheme
Quarterly Return Monthly Payment Scheme.
Query Resolution
Process of addressing GST-related questions or notices.
R
Refund
Repayment of excess GST paid.
Reverse Charge Mechanism (RCM)
GST payment mechanism where the recipient pays tax.
Registration Certificate
Document issued after GST registration approval.
Reconciliation
Matching GST records and returns.
Return Filing
Submission of GST returns to authorities.
S
SAC Code
Services Accounting Code used for classifying services.
SGST
State Goods and Services Tax.
Supply
The taxable event under GST.
Self-Assessment
Taxpayer determination of GST liability.
Show Cause Notice
Notice seeking explanation regarding GST issues.
T
Tax Invoice
Invoice issued for taxable supplies.
Tax Period
Period covered by a GST return.
Taxable Supply
Supply subject to GST.
TCS
Tax Collected at Source under GST provisions.
Turnover
Value of supplies made during a specific period.
U
UTGST
Union Territory Goods and Services Tax.
Unregistered Dealer
Person not registered under GST.
Utilization of ITC
Using available tax credit to pay liabilities.
Underpayment
Payment of less GST than required.
V
Voluntary Registration
GST registration obtained despite not being legally required.
Verification
Process of validating GST information.
Value of Supply
Amount on which GST is calculated.
Vendor Compliance
Supplier adherence to GST requirements.
W
Warehouse
Storage facility relevant for GST and logistics compliance.
Working Capital
Business funds affected by GST obligations.
Withdrawal of Registration
Cancellation of GST registration under prescribed circumstances.
X
XML Utility
Data format used for GST return uploads.
XBRL Reporting
Structured financial reporting format used in compliance environments.
Y
Yearly Compliance
Annual GST filing and reporting obligations.
Yield-Based Supply
Sector-specific GST terminology used in certain industries.
Year-End Reconciliation
The process of reviewing GST records, invoices, returns, Input Tax Credit claims, and tax payments to identify discrepancies before annual reporting and compliance activities.
Z
Zero-Rated Export
Exports of goods or services that qualify for zero-rated treatment under GST and may be eligible for Input Tax Credit and refund benefits subject to applicable conditions.
Zonal Authority
Administrative GST authority in a specific jurisdiction.
Zero Tax Liability Return
Return filed when no GST is payable.
GST Terminology Categories Covered
This glossary includes terminology related to:
GST Registration
GST Returns
GST Invoicing
Input Tax Credit (ITC)
GST Refunds
GST Audits
GST Compliance
GST Assessments
GST Notices
GST Appeals
GST Payments
E-Way Bills
E-Invoicing
HSN Codes
SAC Codes
Exports and Imports
E-Commerce GST
Business Taxation
Digital Services Taxation
Record Keeping and Documentation
Why Understanding GST Terms Matters
A strong understanding of GST terminology helps businesses:
✅ Register correctly
✅ File returns accurately
✅ Claim Input Tax Credit properly
✅ Avoid penalties and notices
✅ Improve tax planning
✅ Strengthen compliance systems
✅ Manage audits effectively
✅ Reduce reporting errors
Frequently Asked Questions (FAQs)
1. What is GST in India?
Goods and Services Tax (GST) is a destination-based indirect tax applied to the supply of goods and services in India. It replaced multiple indirect taxes and created a unified taxation framework for businesses, professionals, and consumers across the country.
Read More: GST Resource Center
2. What is a GSTIN?
GSTIN (Goods and Services Tax Identification Number) is a unique registration number issued to GST-registered taxpayers. Businesses use GSTIN for invoicing, return filing, tax payments, compliance reporting, and other GST-related activities under Indian tax regulations.
Read More: GST Registration Guide
3. What is Input Tax Credit (ITC) under GST?
Input Tax Credit (ITC) allows eligible taxpayers to claim credit for GST paid on qualifying business purchases. ITC can reduce overall GST liability when the conditions prescribed under GST law are satisfied and properly documented.
Read More: Input Tax Credit (ITC) Guide
4. What is an E-Way Bill?
An E-Way Bill is an electronic document generated for the movement of goods under specified GST requirements. It helps authorities monitor goods transportation and supports compliance with applicable GST and logistics regulations.
Read More: E-Way Bill Guide
5. What is a GST Return?
A GST Return is a compliance document filed with tax authorities containing details of sales, purchases, tax collected, tax paid, and Input Tax Credit claimed. Filing requirements depend on the taxpayer category and applicable GST provisions.
Read More: GST Return Filing Guide
6. What is IGST?
Integrated Goods and Services Tax (IGST) generally applies to interstate supplies of goods and services and certain import transactions. IGST helps facilitate tax collection and distribution between the Central Government and states.
Read More: GST Types Explained
7. What is a Tax Invoice?
A Tax Invoice is a GST-compliant document issued for taxable supplies. It contains prescribed information such as supplier details, GSTIN, invoice number, taxable value, tax amount, and transaction details required for compliance purposes.
Read More: GST Invoice Format Guide
8. What is a Credit Note in GST?
A Credit Note is issued when the taxable value or GST charged on an invoice needs to be reduced. It is commonly used for sales returns, pricing adjustments, discounts, or correction of invoicing errors.
Read More: GST Invoice & Documentation Guide
9. What is a GST Refund?
A GST Refund is the repayment of eligible GST amounts under specified circumstances such as exports, excess tax payments, inverted duty structures, or other qualifying situations subject to documentation and regulatory requirements.
Read More: GST Refund Guide
10. What is a Composite Supply?
A Composite Supply refers to two or more naturally bundled goods or services supplied together, where one supply is considered the principal supply. GST treatment generally follows the tax rate applicable to the principal supply.
Read More: GST Classification Guide
11. What is a Mixed Supply under GST?
A Mixed Supply consists of two or more individual goods or services sold together for a single price but not naturally bundled. GST is generally charged based on the highest applicable tax rate among the supplied items.
Read More: GST Compliance Guide
12. What is the GST Composition Scheme?
The GST Composition Scheme is a simplified compliance option available to eligible small taxpayers subject to prescribed conditions. It may reduce return filing complexity and administrative burden while requiring adherence to specific GST provisions.
Read More: GST Composition Scheme Guide
13. What is the difference between CGST, SGST, and IGST?
CGST is collected by the Central Government, SGST by State Governments, and IGST generally applies to interstate transactions. The applicable tax type depends on the nature and location of the supply under GST rules.
Read More: GST Types and Structure Guide
14. What is an HSN Code?
HSN (Harmonized System of Nomenclature) Code is a standardized classification system used to categorize goods under GST. HSN codes help determine tax rates, improve reporting accuracy, and support consistent product classification.
Read More: HSN Code Guide
15. What is a SAC Code?
SAC (Services Accounting Code) is used for classifying services under GST. Businesses and professionals use SAC codes in invoices, tax filings, and compliance reporting to correctly identify the nature of services supplied.
Read More: SAC Code Guide
16. What is Reverse Charge Mechanism (RCM)?
Reverse Charge Mechanism (RCM) is a GST payment system where the recipient, instead of the supplier, is responsible for paying GST on specified transactions. Applicability depends on current GST provisions and transaction type.
Read More: Reverse Charge Mechanism Guide
17. What is a GST Registration Certificate?
A GST Registration Certificate is an official document issued after successful GST registration approval. It confirms a taxpayer's registration status and includes important details such as GSTIN, legal name, and business information.
Read More: GST Registration Process Guide
18. Why is GST terminology important for businesses?
Understanding GST terminology helps businesses interpret compliance requirements, prepare accurate invoices, file returns correctly, claim Input Tax Credit, respond to notices, manage audits, and reduce the risk of reporting errors or penalties.
Read More: GST Glossary A–Z & GST Resource Center
Estimated Reading Time
Estimated Reading Time: 10–15 Minutes
This GST Glossary A–Z contains 300+ GST terms, definitions, abbreviations, compliance concepts, invoicing terminology, registration terminology, return filing concepts, Input Tax Credit (ITC) terms, and business taxation references. Readers may use this glossary as a quick lookup resource or as a comprehensive GST learning guide.
Most Popular GST Terms
The following GST terms are among the most commonly searched and frequently used by businesses, professionals, taxpayers, students, freelancers, startups, and compliance teams:
GST (Goods and Services Tax)
GSTIN (GST Identification Number)
Input Tax Credit (ITC)
GST Registration
GST Return
GSTR-1
GSTR-3B
GST Refund
E-Way Bill
E-Invoice
Tax Invoice
Credit Note
Debit Note
Reverse Charge Mechanism (RCM)
HSN Code
SAC Code
Place of Supply
Composition Scheme
CGST
SGST
IGST
QRMP Scheme
Taxable Supply
Composite Supply
Mixed Supply
These terms form the foundation of GST registration, invoicing, return filing, compliance management, and business taxation in India.
Recently Added Terms
To keep this GST Glossary current and useful, new terminology and compliance concepts may be added periodically as GST laws, notifications, circulars, and regulatory guidance evolve.
Examples of recently reviewed or expanded GST topics include:
E-Invoicing Requirements
QRMP Scheme
OIDAR Services
GST Reconciliation
Vendor Compliance
Digital Business GST
E-Commerce GST Compliance
Zero-Rated Supplies
Export Documentation
GST Risk Assessment Concepts
Online GST Filing
Electronic Credit Ledger
Electronic Cash Ledger
GST Audit Terminology
GST Refund Procedures
Readers are encouraged to revisit this glossary regularly for updates and newly added educational content.
Suggested Next Reading
Continue building your GST, taxation, compliance, and business knowledge with these related resources:
GST Learning Resources
GST Resource Center
GST Registration Guide
GST Return Filing Guide
Input Tax Credit (ITC) Guide
GST Compliance Guide
GST Refund Guide
GST Audit Guide
GST Invoice Format Guide
E-Way Bill Guide
E-Invoicing Guide
GST Reference Resources
HSN Code Guide
SAC Code Guide
GST FAQ Hub
GST Calculator Hub
GST Updates & Notifications Guide
Related Tax & Business Resources
Income Tax Resource Center
PAN Card Resource Center
TDS & TCS Resource Center
Startup Resource Center
MSME Resource Center
Company Compliance Hub
Business Registration Hub
Personal Finance Hub
Investment Resource Center
Wealth Building Hub
Exploring these resources can help readers better understand GST compliance, taxation, financial management, business operations, regulatory requirements, and long-term financial planning.
Very Short Bio
About TaxLook:
TaxLook is an independent tax, finance, compliance, and wealth-building knowledge platform that simplifies taxation through guides, glossaries, FAQs, calculators, resource centers, and educational content for Indian taxpayers and businesses.
Related Articles
GST Learning & Compliance
GST Resource Center
GST Registration Guide
GST Return Filing Guide
Input Tax Credit (ITC) Guide
GST Invoice Format Guide
GST Compliance Guide
GST Refund Guide
GST Audit Guide
E-Way Bill Guide
E-Invoicing Guide
GST Reference Resources
HSN Code Guide
SAC Code Guide
GST Calculator Hub
GST FAQ Hub
GST Updates & Notifications Guide
Related Tax & Business Resources
Income Tax Resource Center
PAN Card Resource Center
TDS & TCS Resource Center
Startup Resource Center
MSME Resource Center
Company Compliance Hub
Business Registration Hub
Personal Finance Hub
Visit Regularly for Updates
GST laws, notifications, compliance procedures, return formats, invoicing requirements, ITC rules, e-way bill regulations, and GST Council decisions continue to evolve.
Bookmark this page and visit regularly for:
✅ New GST Terms & Definitions
✅ GST Council Updates
✅ Compliance Changes
✅ Return Filing Updates
✅ ITC Rule Changes
✅ E-Invoice Developments
✅ GST Notifications & Circulars
✅ Business Tax Updates
✅ New FAQs & Learning Resources
Content Review Information
Reviewed By
N G Kundu
Founder & Publisher, TaxLook
Review Methodology
This glossary is reviewed using publicly available government notifications, GST legislation, GST Council recommendations, CBIC publications, compliance references, and educational resources. Definitions may be updated periodically to improve clarity, accuracy, and usefulness.
Editorial Standards
TaxLook follows a reader-first publishing approach focused on:
Accuracy
Clarity
Educational value
Transparency
Evidence-based information
Periodic content reviews
Compliance with publishing best practices
Readers should verify regulatory requirements through official government sources before making tax, accounting, legal, financial, or business decisions.
References
Authoritative resources may include:
GST Portal — https://www.gst.gov.in
GST Council — https://gstcouncil.gov.in
Central Board of Indirect Taxes and Customs (CBIC) — https://www.cbic.gov.in
Ministry of Finance, Government of India — https://www.finmin.gov.in
Official GST Acts, Rules, Notifications and Circulars
Government compliance publications and advisories
Conclusion
GST compliance becomes significantly easier when individuals and businesses understand the terminology used throughout registration, invoicing, return filing, Input Tax Credit (ITC), audits, refunds, notices, assessments, and compliance procedures.
This GST Glossary A–Z is designed to serve as a practical educational reference for taxpayers, professionals, students, entrepreneurs, startups, and businesses seeking to improve their understanding of GST concepts and indirect taxation.
Stay Updated
Bookmark this GST Glossary and visit regularly for updated GST definitions, compliance terminology, regulatory developments, GST Council updates, new educational resources, and GST learning materials.
Explore the related guides and resource centers above to continue building your knowledge of taxation, compliance, finance, and business management.
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