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GST Invoice Rules: Invoice Details and Essential Information

by | Oct 31, 2020

GST Invoice Rules

The time has come for businesses to prep themselves for their next GST returns filing. As the dates are nearing, it is crucial to issue tax invoices as per the recent GST guidelines to eliminate the risks of facing barriers. As businesses mark the beginning of the new era, they must ensure that each transaction is billed with the necessary invoice details and GST invoice rules. Staying GST compliant enables business owners to claim ITC that helps in continuous growth.

Amid the COVID-19 pandemic, incorrect invoice format has been the major GST issue due to raising confusion among the taxpayers. The government of India has notified several changes under the GST regime to relieve the burden for taxpayers. However, due to a lack of knowledge and understanding, taxpayers have not been able to adhere to the laws related to GST invoice rules and bills format. To counter this problem; modern businesses rely on accounting software instead of accountants to remain GST compliant.

It is crucial to issue and collect accurate GST invoices as a vendor or a client, respectively. If taxpayers fail to issue correct GST invoices, it can increase the clients’ costs of expenditure. In turn, it leads to the consequences of losing clients and causes loss in the overall business. This article throws light on the significant aspects of GST invoice rules that can help you better understand GST’s concept.

What is an Invoice?

Invoice is a typical representation of receipts issued on the transaction of products or services. It is a distinctive commercial document issued either by a supplier or a buyer, entailing the statement of agreed dues payable on the goods sent or services provided. Each country has its own GST invoice rules and tax regime that taxpayers must mandatorily follow. An invoice that indicates details and essential information regarding the notified GST guidelines is termed as the GST invoice.

What are GST Invoice Rules?

GST Invoice rules are a set of commands designed sequentially to enable taxpayers to follow the nation’s unified tax calculation system. It indicates taxpayers adhere to some of the mandatory GST accounting tasks, documentation, returns filing, and unified business record formatting, to name a few. Invoice rules aim to minimize the risks of late payments and bad debts for both government and taxpayers.

Why Should Taxpayers Adhere to GST Invoice Rules?

Invoice rules are designed to create a classified, transparent, and well-organized returns filing system for both taxpayers and the government. It eliminates hitches that can potentially cause complications in returns filing procedures and invoice formatting. Businesses must adhere to the legal obligation to avoid business risks and high penalties.

GST Invoice Rules – Essential Information

The government of India has categorized goods and services under various sections. Each category is differentiated based on availability, demand, needs, necessary facilities, luxuries, and other factors that determine its value in the market. Here are some of the most significant and recently notified GST invoice rules that taxpayers must follow in India.

Rule – 1  

Goods that primarily contribute to the nation’s GDP, for instance, alcohol, petrol, diesel, aviation turbine fuel, crude petroleum, high-speed diesel, natural gas, do not fall under the purview of GST. However, taxes applicable on these goods are continued as per the tax structure followed before the implementation of GST in India.

Rule – 2

Vendors supplying non-movable goods must issue invoices to the recipients within 45 days from the date of purchase. If not, vendors can issue invoices within six months after the recipient permits to move the goods supplied.

Rule – 3

Three copies of invoices must be issued in case of the supply of goods; An original copy for the recipient, a duplicate copy for the supplier, and a triplicate copy to the person delivering the goods.

Rule – 4

In case of a supply of services, the vendor must issue an invoice to the recipient before or at the payment time.

Rule – 5

Two copies of the invoices must be issued in case of the supply of services. The original invoice to the recipient and a duplicate copy retained by the vendor.

What is Billing Format?

Modern small business owners prefer handling accounting operations in their own desired ways to gain profits. It has resulted in diversified opinions and unique forms of handling procedures of record-keeping and documentation. This, in turn, leads to misinterpretations that might cost a fortune to the business owners.

A billing format is a standardized and distinctive invoicing template that a business must follow to represent necessary billing details of the goods and services supplied to the clients. The billing format ensures that businesses issue correct invoices as per the applicable GST invoice rules.

GST Invoice Details – Bills Format

A goods and services tax (GST) invoice is a commercial instrument that indicates the names of the individuals involved and the details of the goods or services provided in a specific transaction. The GST invoice format details include:

  • Name of the product
  • Description
  • Quantity of goods or services supplied
  • Supplier’s & recipient’s details
  • Billing or shipping address
  • GSTIN of the supplier and recipient
  • HSN or SAC code
  • Terms of supply
  • Date of supply
  • Price statement of the goods or services supplied
  • Discounts (if any)
  • Applicable GST tax rates

Billing Formats – Types

1.   Pro Forma

It is the type of invoice format issued by a supplier to a buyer to declare the actual price of goods or services supplied. It enables taxpayers to claim input tax credit in advance, ensuring the commitment between suppliers and buyers. The Proforma invoice under GST is usually kept unrecorded by both parties involved in a specific transaction.

2.   Credit Invoice

It is a commercial document that allows a buyer to return the goods or services in case of damages or dissatisfaction. The buyer might either receive a gift or exchange products in return as a gesture of goodwill instead of cash return on credit invoices.

3.   Debit Invoice

It is a billing format issued by buyers to their suppliers as a reminder of an upcoming invoice or the credit note that indicates supplier’s uncovered debts of credit invoices.

GST Invoice Software

As a registered taxpayer, you must issue GST invoices to your clients. An invoice or bill is a list of goods shipped or services rendered, along with the amount owed for payment. You can create GST compliant invoices and automate accounting operations with Imprezz invoicing software. It is a boon for taxpayers, entrepreneurs, and SEM’s in India. It eliminates the causes of misinterpretations that arise in the billing procedures, creating room for smooth functionalities.


It’s almost been a decade since the inception of Goods and Services Tax (GST) in India. Taxpayers across the nation have, by far, witnessed several changes in tax calculations and return filing systems. Most taxpayers in India are now well aware of GST laws with GST invoice software and simplified tax procedures.

The government is determined to build a flawless GST system in India. E-invoicing is mandated, aiming to ease the returns filing procedures as per the GST invoice rules. You can automate your invoice processing with Imprezz, the pioneer of accounting software in India. You can visit the official website, Imprezz.in, or get in touch with our support team to know more about the Invoice rules and other details.

We offer a 14 days free trial software program for small businesses in India. Log in to get started with your small business accounting.

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