GST can be confusing, especially with so many short forms and codes used in the system. Whether you’re a business owner, accountant, or just someone trying to file your GST returns, knowing the full forms and meanings of these terms is very helpful. We have explained all the important full forms used in GST like ITC, RCM, HSN, ARN, LUT, and many more.
What is GST Full Form?
GST full form is Goods and Services Tax. It is a tax system used in India to replace many old taxes like VAT, service tax, and excise duty. GST is a single tax applied on the supply of goods and services, from the manufacturer to the consumer. It helps make tax collection simple and transparent. It is collected at every step of the supply chain, but businesses can claim credit for the tax they paid on purchases, which avoids double taxation. GST has made tax filing easier and promotes a common national market.
ITC Full Form in GST
ITC full form in GST is Input Tax Credit. It means businesses can claim credit for the tax they paid on purchases while paying tax on sales. For example, if you paid GST while buying raw materials, you can subtract that amount from the GST you owe on your sales. This helps lower overall tax payments and prevents double taxation.
RCM Full Form in GST
RCM full form in GST is Reverse Charge Mechanism. Normally, the seller pays GST to the government, but in some cases, the buyer has to pay it directly. This happens when you take services from an unregistered dealer or from specific sectors like transport or legal services. RCM ensures proper tax collection in special cases.
HSN Full Form in GST
HSN full form in GST is Harmonized System of Nomenclature. It’s a system used to classify goods. Each product has a unique HSN code based on what it is. These codes help businesses apply the correct GST rate and make invoicing and tax filing more systematic and accurate.
TCS Full Form in GST
TCS full form in GST is Tax Collected at Source. It is collected by online platforms like Amazon or Flipkart when sellers sell through their websites. A small percentage of the sale is collected as tax and paid to the government. Later, the seller can adjust this amount while filing GST returns.
SAC Full Form in GST
SAC full form in GST is Services Accounting Code. This code is used to identify services instead of goods. Every service has a unique SAC code assigned by the government. These codes help in billing, calculating GST rates, and filing returns accurately. It is just like HSN codes, but for services.
ARN Full Form in GST
ARN full form in GST is Application Reference Number. When you apply for GST registration or file any form on the GST portal, an ARN is generated. It helps you track the status of your application online. It’s like a receipt or token number for your submission.
DRC Full Form in GST
DRC full form in GST is Demand and Recovery Certificate. It is a notice sent by the GST department if you fail to pay your GST dues. It shows how much tax you owe and tells you to pay it within a certain time. If not paid, the government may take action to recover it.
GTA Full Form in GST
GTA full form in GST is Goods Transport Agency. This refers to companies or individuals that provide goods transport services by road and issue a consignment note. Special rules apply under GST for GTA services. Sometimes, the receiver of the service must pay GST under reverse charge rules.
SEZ Full Form in GST
SEZ full form in GST is Special Economic Zone. These are areas set up by the government to boost business and exports. Businesses in SEZs get many tax benefits. Supplies made to SEZs are treated as zero-rated under GST, meaning GST is not charged but the seller can claim input credit.
EVC Full Form in GST
EVC full form in GST is Electronic Verification Code. It is a code sent to your email or phone to verify your identity when you file returns or apply for registration on the GST portal. It works like an OTP and is a simple way to complete online GST actions without needing a digital signature.
IRN Full Form in GST
IRN full form in GST is Invoice Reference Number. It is a unique number created when you upload an e-invoice to the Invoice Registration Portal. This number proves the invoice is valid. It helps in tracking and reporting transactions properly under GST laws, especially for businesses that need e-invoicing.
ISD Full Form in GST
ISD full form in GST is Input Service Distributor. This is used when one office of a company receives services used by many branches. The head office distributes the input tax credit to other branches. It ensures that the GST paid is properly shared across different locations of the same business.
LUT Full Form in GST
LUT full form in GST is Letter of Undertaking. It is a document exporters can submit to export goods or services without paying GST upfront. This saves time and money, as they don’t have to pay tax first and then wait for a refund. It’s useful for regular exporters.
TRN Full Form in GST
TRN full form in GST is Temporary Reference Number. It is a number given to you when you start filling out your GST registration. You can use it to log in and complete your application later. Once registration is complete, a permanent GSTIN is issued. TRN is valid for a limited time.
GSP Full Form in GST
GSP full form in GST is GST Suvidha Provider. These are companies approved by the government to help taxpayers connect with the GST portal. They provide software tools and services to make return filing, invoice uploading, and compliance easier. GSPs help simplify the GST process for businesses.
IFF Full Form in GST
IFF full form in GST is Invoice Furnishing Facility. It is used by small taxpayers who file returns quarterly. IFF allows them to upload invoices every month, so their customers can get input tax credit without waiting for the whole quarter. It improves business flow and helps maintain good relationships with buyers.
CESS Full Form in GST
CESS full form in GST is Compensation Cess. It is an extra tax charged on luxury and sin goods like tobacco, aerated drinks, and expensive cars. The amount collected is used to compensate states for any loss of revenue caused due to GST implementation.
DSC Full Form in GST
DSC full form in GST is Digital Signature Certificate. It is an online version of your signature used to sign documents on the GST portal. Businesses, especially companies and LLPs, are required to use DSCs when filing returns or making official changes. It keeps documents secure and legal.
IRP Full Form in GST
IRP full form in GST is Invoice Registration Portal. It is the system where e-invoices are uploaded and verified. Once approved, the portal generates an Invoice Reference Number (IRN). The IRP also adds a digital signature and QR code to the invoice, ensuring it meets GST rules.
OIDAR Full Form in GST
OIDAR full form in GST is Online Information and Database Access or Retrieval. This applies to digital services like software, music, cloud storage, e-books, or online ads provided over the internet. If these services are offered by a foreign supplier to Indian customers, GST is charged even if the supplier is located outside India.
URP Full Form in GST
URP full form in GST is Unregistered Person. A URP is someone who is not registered under GST. If a business supplies goods or services to a URP, GST is still applicable, but the unregistered person cannot claim input tax credit. Certain rules apply for sales to or purchases from URPs.
CST Full Form in GST
CST full form in GST is Central Sales Tax. CST was a tax collected by the central government on inter-state sales before GST was introduced. Though GST has replaced CST in most areas, it may still apply to certain transactions not fully covered by GST, especially in transitional cases.
CIN Full Form in GST
CIN full form in GST is Challan Identification Number. When you make a payment to the GST portal using a challan, a CIN is generated. It acts as proof of payment and helps track tax deposits. CIN is important for filing accurate returns and avoiding payment-related issues.
SCN Full Form in GST
SCN full form in GST is Show Cause Notice. It is a legal notice sent by the GST department if they believe you have not followed tax rules properly. It asks you to explain why action should not be taken against you. You must respond within the given time or face penalties.
UIN Full Form in GST
UIN full form in GST is Unique Identification Number. UIN is issued to special entities like embassies, UN bodies, and other notified organizations. These entities are not required to pay GST on purchases in India and can claim refunds using their UIN. It helps in tracking tax-exempt organizations.
TDS Full Form in GST
TDS full form in GST is Tax Deducted at Source. Under GST, certain businesses or departments must deduct a portion of the tax before making payments to suppliers. The deducted amount is then deposited with the government. This ensures tax collection is tracked and suppliers can claim this while filing returns.
CVD Full Form in GST
CVD full form in GST is Countervailing Duty. It was used before GST on imported goods to equalize taxes between foreign and Indian products. After GST was introduced, CVD was largely replaced by Integrated GST (IGST) on imports. It helped prevent unfair advantages for imported goods.
TIN Full Form in GST
TIN full form in GST is Taxpayer Identification Number. TIN was used under the previous tax system (VAT). In GST, the TIN has been replaced by GSTIN — a 15-digit number given to each registered taxpayer. It helps the government track transactions and maintain tax records.
PPOB Full Form in GST
PPOB full form in GST is Principal Place of Business. It refers to the main location from where a business operates. During GST registration, a business must declare its PPOB, which becomes its official address for tax purposes. All notices, returns, and records are linked to this place.
FCM Full Form in GST
FCM full form in GST is Forward Charge Mechanism. In this method, the seller of goods or services is responsible for collecting and paying GST to the government. This is the normal way GST is paid, unlike the Reverse Charge Mechanism where the buyer pays the tax.
URD Full Form in GST
URD full form in GST is Unregistered Dealer. These are sellers who have not registered under GST. Buying from a URD may require the buyer to pay GST under the reverse charge system. However, some rules have changed and now RCM may not apply in all such transactions.
CPIN Full Form in GST
CPIN full form in GST is Common Portal Identification Number. This number is created when you generate a challan for paying GST. CPIN helps in identifying and tracking payments made through the GST portal. It is valid for a limited time and must be used before making the payment.
BCD Full Form in GST
BCD full form in GST is Basic Customs Duty. It is a tax imposed on imported goods in addition to GST. BCD is charged by customs authorities and helps protect domestic industries by making imports more expensive. It continues to exist even after GST implementation.
SRN Full Form in GST
SRN full form in GST is Service Request Number. When you file a service request like refund claims, amendments, or rectifications on the GST portal, you receive an SRN. It helps you track the status of your request and is useful for customer support or follow-ups.
ASMT Full Form in GST
ASMT full form in GST is Assessment. It refers to the examination of GST returns and records by tax officers to ensure correct tax payment. There are different types of assessments like self-assessment, provisional, and best judgment. This ensures transparency and helps detect errors or fraud.
ECO Full Form in GST
ECO full form in GST is E-Commerce Operator. ECOs are platforms like Flipkart, Amazon, Swiggy, and Uber that allow businesses to sell or deliver through them. Under GST, these platforms are responsible for collecting and paying tax on behalf of their sellers or service providers in certain cases.
C GST Full Form
C GST full form is Central Goods and Services Tax. It is the tax collected by the central government on sales made within a single state. CGST is combined with SGST (collected by the state government) in intra-state transactions. Both are part of the total GST rate charged on bills.
CBIC Full Form in GST
CBIC full form in GST is Central Board of Indirect Taxes and Customs. This is the top body in India responsible for GST, customs duties, and other indirect taxes. CBIC drafts rules, handles policy matters, and ensures that GST laws are implemented properly across the country.
CTP Full Form in GST
CTP full form in GST is Casual Taxable Person. This refers to a person who occasionally supplies goods or services in a state where they don’t have a fixed place of business. CTPs must take temporary GST registration before starting business in such cases and pay taxes accordingly.
CDNR Full Form in GST
CDNR full form in GST is Credit/Debit Note Registered. When a registered person issues a credit or debit note to correct or update an earlier tax invoice, it is called a CDNR. These notes help in adjusting the tax liability or correcting the invoice value in GST returns.
DTA Full Form in GST
DTA full form in GST is Domestic Tariff Area. It includes all areas in India that are not part of Special Economic Zones (SEZ). Goods or services supplied from an SEZ to the DTA are treated like imports and are subject to GST. DTA businesses follow regular GST rules.
B2B Full Form in GST
B2B full form in GST is Business to Business. It refers to transactions between two registered businesses. In B2B transactions, GST is charged and the buyer can claim input tax credit. Proper GSTIN of the buyer must be mentioned on the invoice for this benefit to apply.
POS Full Form in GST
POS full form in GST is Place of Supply. It determines where a good or service is considered supplied. POS helps decide whether CGST + SGST (within state) or IGST (between states) is applicable. Knowing the POS is essential for charging the correct tax on invoices.
SAD Full Form in GST
SAD full form in GST is Special Additional Duty. It was a tax levied on imports to counter the VAT or sales tax paid by local manufacturers. After the introduction of GST, SAD was replaced by IGST on imports to simplify the tax structure.
OE Full Form in GST
OE full form in GST is Original Equipment. It usually refers to parts made by the original manufacturer, especially in the automobile sector. Under GST, OE parts and aftermarket parts may attract different tax rates. OE ensures quality and standard compliance, which can affect tax categorization.
CMP Full Form in GST
CMP full form in GST is Composition Scheme. It is a simplified GST scheme for small businesses with turnover up to a certain limit. Under this, they pay tax at a fixed low rate and don’t need to maintain detailed records or file monthly returns. However, they cannot collect GST from customers.
PMT Full Form in GST
PMT full form in GST is Payment. In GST, PMT forms and ledgers are used to track tax payments. For example, PMT-06 is used for depositing GST, while PMT-09 helps transfer balances between different tax heads. These forms are part of the taxpayer’s electronic cash and liability ledger.
CBEC Full Form in GST
CBEC full form in GST is Central Board of Excise and Customs. It was the previous name of CBIC before the GST era. CBEC handled customs and excise taxes. After GST was launched, CBEC was renamed to CBIC, and now it manages all indirect tax matters in India.
ASP Full Form in GST
ASP full form in GST is Application Service Provider. ASPs are software companies that help businesses manage GST compliance. They work along with GSPs to offer solutions for return filing, invoice preparation, and data validation. ASPs simplify the entire GST process, especially for businesses without in-house tax teams.
CTIN Full Form in GST
CTIN full form in GST is Counterparty Taxpayer Identification Number. It is the GSTIN of the person you are dealing with in a B2B transaction. CTIN is mentioned in GST returns to match input and output tax claims. It ensures transparency and helps prevent tax fraud.
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