GST Accounting Basics: A Beginner's Guide to GST Entries and ITC

Recording purchases and sales becomes more complex when businesses must account for GST separately from the value of goods or services. Incorrect journal entries can lead to mismatched tax records, inaccurate GST liabilities and errors in return filing. Understanding basic GST accounting helps businesses record transactions correctly and calculate the tax payable.

GST accounting is an essential part of business finance, requiring an understanding of tax records, accounting entries and tax liabilities. PW Skills' Finance, Tax and Accounting Course helps you build efficiency in finance and taxation through real-world case studies, financial modelling and AI-powered tools training, preparing you to apply your knowledge to practical business scenarios.

What Is GST Accounting?

GST accounting is the process of recording GST charged on sales, paid on purchases and payable to the government. Businesses maintain these records to calculate their tax liability, claim eligible ITC and reconcile their books with GST returns.

The main GST accounts used in basic accounting are:

• Input CGST: Central GST paid on eligible purchases within a state.

• Input SGST: State GST paid on eligible intra-state purchases.

• Input IGST: Integrated GST paid on eligible inter-state purchases.

• Output CGST: Central GST charged on taxable intra-state sales.

• Output SGST: State GST charged on taxable intra-state sales.

• Output IGST: Integrated GST charged on taxable inter-state sales.

Input GST represents tax paid on purchases, while output GST represents tax collected on sales. The eligible input credit can be adjusted against output tax according to the applicable GST rules.

How Is Input Tax Credit Recorded in GST Accounting?

Input Tax Credit is recorded separately from the purchase value so that eligible GST paid on business purchases can be adjusted against output GST liability.

Before claiming ITC, a business should verify that:

• It holds a valid tax invoice or other permitted document.

• The goods or services have been received, subject to applicable provisions.

• The relevant invoice details satisfy GST reporting requirements.

• The purchase is eligible for credit and is not covered by a restriction.

• The applicable GST return and time-limit requirements are met.

GST paid on a purchase should not automatically be treated as claimable ITC. Blocked credits and other ineligible amounts must be accounted for according to the applicable provisions.

How Are GST Entries Adjusted Against ITC?

At the end of a tax period, a business calculates its output GST liability and identifies the eligible ITC available for utilisation. The adjustment is recorded to reflect the transfer of eligible input credit against output tax.

Consider these figures:

The adjustment can be illustrated through the following journal entries, assuming the available credits can be fully utilised against the corresponding liabilities:

After adjustment, the remaining output GST liability is Rs. 450 under CGST and Rs. 450 under SGST. The business must account for any remaining liability according to the prescribed GST payment process.

The utilisation of IGST, CGST and SGST credit must follow the statutory order. Cross-utilisation is not unrestricted, and the journal entries should reflect the actual credit utilised.

What Is the Journal Entry for GST Payment?

Once eligible ITC has been adjusted, the business pays the remaining GST liability to the government. The payment entry records the settlement of that liability.

Using the previous example, the business has Rs. 450 each in net CGST and SGST payable.

This simplified entry assumes the liability is paid directly from the bank after the relevant adjustments. In practice, accounting entries should reflect the balances in the GST payable accounts, the electronic ledgers and the payment method used.

What Are the Common GST Accounting Mistakes?

Incorrect GST entries can create differences between accounting records, available ITC and tax returns. Beginners should understand how GST principles apply to day-to-day bookkeeping and Tally-based GST accounting tasks, while paying attention to the following common errors: 

• Using the wrong GST type: Recording CGST and SGST instead of IGST, or vice versa, can result in incorrect tax treatment.

• Claiming ineligible ITC: GST charged on a purchase is not necessarily eligible for credit.

• Recording incorrect tax amounts: Applying the wrong GST rate or calculating tax on an incorrect taxable value can distort the liability.

• Ignoring invoice reconciliation: Differences between purchase records and supplier-reported details may affect ITC claims.

• Missing reversal requirements: Certain credits must be reversed or adjusted when the prescribed conditions are no longer satisfied.

• Failing to reconcile balances: GST accounts should be checked against the relevant returns and electronic ledgers before finalising the accounts.

Learn GST Accounting Basics with PW Skills

Understanding GST entries and Input Tax Credit is an important part of maintaining accurate business accounts and learning taxation. PW Skills' Finance, Tax and Accounting Course covers GST, Income Tax and accounting concepts, helping you build relevant knowledge through industry-aligned learning and practical applications.

The course includes:

• GST and Taxation: Learn key concepts related to GST, Income Tax and tax compliance.

• Accounting Software: Develop practical familiarity with Excel, Tally and Zoho Books.

• Real-World Case Studies: Connect accounting and finance concepts with business scenarios.

• AI in Accounting and Finance: Learn about AI-powered tools used in finance-related tasks.

• Live and Recorded Classes: Attend live sessions and revisit recordings for revision.

• Financial Modelling and Power BI: The Pro learning path includes additional training in financial modelling, Power BI and capstone projects.

The four-month course is delivered online in Hinglish through PW, with Premium and Pro learning paths for different learning goals.

GST accounting involves recording purchases and sales, separating input and output tax, adjusting eligible ITC and accounting for the remaining GST liability. Understanding purchase, sales, adjustment and payment entries helps you follow how GST moves through a business's accounting records. PW Skills provides learning resources in finance, tax and accounting, including practical case studies, financial modelling and AI-powered tools training. These resources can help you build knowledge relevant to bookkeeping, taxation and financial operations.