GST Compliance Checklist for New Companies in India

GST compliance basics every new company should know

What GST compliance includes

GST compliance involves several recurring tasks that ensure tax reporting and payments are accurate and timely. For new companies, the main compliance areas include:

• GST invoicing and e-way bill generation (when applicable)
• Monthly or quarterly return filing based on the chosen scheme
• Payment of GST liability and tracking of interest or late fees
• Input Tax Credit (ITC) verification and reconciliation
• Maintaining proper records and documentation for audits or notices

These tasks form the backbone of GST compliance and must be managed consistently throughout the year.

What decides your compliance workload

Not all companies have the same GST compliance requirements. The workload often depends on the nature and scale of the business.

Factors that influence GST compliance include:

• Turnover: Higher turnover often means more invoices and more complex reporting.
• Nature of supply: Businesses dealing in goods may have e-way bill requirements, while service companies focus more on invoicing and ITC tracking.
• B2B vs B2C mix: B2B transactions require detailed invoice reporting for ITC claims.
• Interstate supply: Interstate sales are subject to IGST and place-of-supply rules.
• E-commerce selling: Sellers on marketplaces must track TCS and platform reporting.
• Composition vs regular scheme: Composition taxpayers have simpler returns but cannot claim ITC.

Day 0 checklist after GST registration

Set up your GST profile correctly

The first step after obtaining GST registration is to ensure that the company’s GST profile is configured correctly.

Important steps include:

• Confirm the legal name, trade name, and registered address
• Map authorised signatory access for GST filings
• Update bank account details if not already completed
• Create a GST compliance folder (digital or physical) to store registration certificates, filings, and supporting documents

Set up invoicing rules and templates

A proper invoicing system is critical for GST compliance. Incorrect invoice formats or missing fields are one of the most common causes of compliance issues.

Your invoicing setup should include:

• Mandatory fields like GSTIN, invoice number series, HSN/SAC codes, and place of supply
• Tax rate mapping for each product or service category
• A process for issuing credit notes and debit notes
• A customer master database capturing state, GSTIN, and billing details

Monthly GST compliance checklist

Sales and invoice compliance

Every month, businesses must ensure that their sales transactions are properly recorded and compliant with GST rules.

Key checks include:

• Issue GST-compliant invoices for all taxable supplies
• Verify correct GST rates and place of supply
• Track advances, cancellations, and refunds
• Maintain a continuous invoice series without gaps

Purchase and expense compliance

Vendor invoices are critical for claiming Input Tax Credit. Incorrect or missing vendor data can cause ITC loss.

Monthly purchase checks should include:

• Collect valid tax invoices from all vendors
• Verify vendor GSTIN and mandatory invoice fields
• Identify reverse charge transactions if applicable
• Separate business expenses from personal expenses

Input Tax Credit (ITC) checks

Input Tax Credit reduces the GST payable by offsetting taxes paid on business purchases. However, ITC is allowed only when documentation and supplier reporting match.

Important ITC checks include:

• Match purchase invoices with supplier uploads
• Identify blocked ITC categories under the GST rules
• Maintain proof of receipt of goods or services
• Perform regular ITC reconciliation

Return filing and payment readiness

Once sales and purchase records are finalised, companies must prepare for GST return filing.

Key tasks include:

• Finalise sales and purchase data for the reporting period
• Calculate net GST payable after adjusting ITC
• File applicable GST returns within the due dates‍
• Pay taxes, store challans, and payment proofs

Quarterly compliance checklist

Reconcile books vs GST returns

Quarterly reviews help identify discrepancies before they accumulate into major issues. Important checks include:

• Compare turnover reported in books vs GST returns
• Review credit notes and debit notes issued during the quarter
• Verify tax rate classification and HSN/SAC codes
• Confirm interstate vs intrastate transaction classification

Review vendor compliance

Supplier compliance directly affects a company's ITC eligibility.

Quarterly vendor reviews should include:

• Identify vendors who delay or fail to file GST returns
• Follow up for missing or incorrect invoices
• Resolve old ITC mismatches

Year-end GST compliance checklist for new companies

Full-year review and clean-up

At the end of the financial year, companies should conduct a detailed GST review to ensure accuracy before closing books.

Key activities include:

• Perform annual reconciliation of sales, purchases, and ITC
• Review interest or late fee exposure
• Correct tax classification or reporting issues
• Ensure all amendments, credit notes, and missed invoices are recorded

Record keeping and audit readiness

Proper documentation is essential for handling GST audits or notices.

Businesses should maintain records such as:

• Invoices, e-way bills, challans, and GST returns
• Reconciliation statements and working papers
• Contracts and supporting documents for major expenses

Common GST compliance mistakes new companies make

Many compliance issues arise from simple operational mistakes. Some common ones include:

• Applying incorrect GST rates or HSN/SAC codes
• Using the wrong place of supply for interstate transactions
• Missing invoice fields or maintaining broken invoice sequences
• Claiming ITC without supplier data matching
• Filing GST returns late and ignoring penalties
• Not identifying reverse charge transactions

Tools and processes to simplify GST compliance

Create a simple compliance system

Instead of treating GST as an occasional task, businesses should build a simple compliance system.

Practical steps include:

• Maintain a monthly GST calendar with due dates
• Use a single system for invoices and vendor bills
• Perform weekly or monthly reconciliation routines
• Clearly define responsibility between founders, finance teams, and accountants

With structured processes, GST compliance becomes predictable and manageable, even for new companies navigating the system for the first time.

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Frequently Asked Questions (FAQs)