GST Return Filing 2025: Step-by-Step Guide & Due Dates

By Return Filer TeamUpdated on: Aug 4, 202518 min read
GST Return Filing Guide
Complete guide to GST return filing process and compliance

GST Returns Overview

GST returns are periodic statements that taxpayers need to file with the GST authorities, containing details of income, purchases, tax collected on sales, and tax paid on purchases. These returns are essential for maintaining compliance under the Goods and Services Tax regime in India.

The GST return filing system is designed to ensure transparency and provide a comprehensive view of a business's tax liability. Regular and timely filing of GST returns is crucial for avoiding penalties, maintaining good standing with tax authorities, and claiming input tax credits.

Important: GST return filing is mandatory for all registered taxpayers, regardless of whether they have conducted any business activities during the return period.

Types of GST Returns

There are several types of GST returns, each serving different purposes and applicable to different categories of taxpayers:

GSTR-1

Details of outward supplies

  • • Monthly/Quarterly filing
  • • Sales invoice details
  • • Export information
  • • Credit/Debit notes

GSTR-2A

Auto-populated purchase details

  • • System generated
  • • Supplier's GSTR-1 data
  • • Input tax credit basis
  • • View only format

GSTR-3B

Summary return & payment

  • • Monthly filing
  • • Tax liability summary
  • • Input tax credit claimed
  • • Tax payment details

GSTR-4

Composition scheme return

  • • Quarterly filing
  • • Simplified format
  • • Turnover details
  • • Tax payment summary

GSTR-9

Annual return

  • • Annual filing
  • • Consolidated data
  • • Reconciliation required
  • • Detailed disclosures

GSTR-9C

Reconciliation statement

  • • Annual filing
  • • CA/CMA certification
  • • Financial reconciliation
  • • Audit requirements

GSTR-1 Filing Process

GSTR-1 contains details of all outward supplies made by a registered taxpayer. Here's the step-by-step process to file GSTR-1:

1

Login to GST Portal

Access the GST portal using your GSTIN and password. Navigate to the 'Returns' section and select 'Returns Dashboard'.

2

Select GSTR-1

Choose the appropriate return period (month/quarter) and click on 'PREPARE ONLINE' or 'UPLOAD FROM FILE'.

3

Enter Invoice Details

Add details of all outward supplies including B2B, B2C, exports, advances received, and credit/debit notes.

4

Validate Data

Review all entered data for accuracy. Use the validation feature to check for errors or missing information.

5

Submit Return

After validation, submit the return using DSC or EVC. Download the acknowledgment for your records.

GSTR-1 Key Sections

  • 4A: B2B supplies with invoice details
  • 5: B2C supplies (state-wise summary)
  • 6A: Export invoices
  • 9A: Credit notes
  • 9B: Debit notes
  • 11A: Advances received

GSTR-3B Filing Process

GSTR-3B is a summary return where taxpayers declare their tax liability and claim input tax credit. This is a crucial return as it determines the actual tax payment.

1

Access GSTR-3B

Login to GST portal and select GSTR-3B for the relevant return period from the returns dashboard.

2

Fill Table 3.1

Enter outward supplies details including taxable value and tax amount for different categories (inter-state, intra-state, exports).

3

Complete Table 4

Enter input tax credit details including ITC available, ITC reversed, and net ITC available for set-off.

4

Calculate Tax Liability

The system automatically calculates net tax liability after adjusting input tax credit and any other adjustments.

5

Make Payment & File

Pay the calculated tax liability through challan and file the return using DSC or EVC authentication.

GSTR-3B Tables Overview

  • Table 3.1: Outward supplies summary
  • Table 3.2: Outward supplies liable to reverse charge
  • Table 4: Input Tax Credit details
  • Table 5: Values of exempt, nil-rated and non-GST supplies
  • Table 6: Payment of tax
  • Table 7: Late fee payment

GST Return Due Dates 2025

Timely filing of GST returns is crucial to avoid penalties and maintain compliance. Here are the due dates for different GST returns:

Return TypeFrequencyDue DateApplicable To
GSTR-1Monthly/Quarterly11th/13th of next monthRegular taxpayers
GSTR-3BMonthly20th of next monthRegular taxpayers
GSTR-4Quarterly18th of next monthComposition dealers
GSTR-9Annual31st DecemberRegular taxpayers
GSTR-9CAnnual31st DecemberTurnover > ₹2 crore

Note: Due dates may be extended by the government for specific periods. Always check the latest notifications on the GST portal.

Late Filing Penalties & Interest

Late filing of GST returns attracts penalties and interest charges. Understanding these charges helps in maintaining timely compliance:

Late Filing Penalties

  • GSTR-1: ₹50 per day per act (max ₹5,000)
  • GSTR-3B: ₹50 per day per act (max ₹5,000)
  • GSTR-4: ₹50 per day per act (max ₹5,000)
  • Nil Returns: ₹20 per day per act (max ₹500)

Interest Charges

  • Rate: 18% per annum
  • Calculation: From due date to payment date
  • Applies to: Outstanding tax liability
  • Minimum: ₹100 per tax period

Additional Consequences

  • • Suspension of GST registration for 6 consecutive non-filings
  • • Block of input tax credit claims
  • • Restriction on filing subsequent returns
  • • Legal notices and proceedings
  • • Impact on business credit rating

Common GST Filing Errors to Avoid

Avoiding common mistakes can save time and prevent compliance issues. Here are the most frequent errors in GST filing:

Data Entry Errors

  • • Incorrect GSTIN of customers/suppliers
  • • Wrong HSN/SAC codes
  • • Mismatched invoice amounts
  • • Incorrect tax rates application
  • • Missing or wrong place of supply

Reconciliation Issues

  • • GSTR-1 and GSTR-3B mismatches
  • • Books of accounts vs GST returns differences
  • • Input tax credit overclaim
  • • Missing reversal entries
  • • Advance adjustments errors

Technical Errors

  • • File format issues during upload
  • • JSON validation errors
  • • Duplicate invoice entries
  • • Authentication failures
  • • Browser compatibility issues

GST Filing Best Practices

Following these best practices ensures smooth GST compliance and reduces the risk of errors and penalties:

Preparation & Documentation

  • Maintain accurate books of accounts
  • Regular reconciliation of data
  • Keep all supporting documents ready
  • Verify customer/supplier GSTIN
  • Use correct HSN/SAC codes
  • Review input tax credit eligibility

Filing Process

  • File returns well before due dates
  • Double-check all entries before submission
  • Use validated data upload formats
  • Keep payment receipts and acknowledgments
  • Monitor GSTR-2A for input credit
  • Regular follow-up on disputed entries

Pro Tip: Use GST reconciliation tools and software to automate data validation and reduce manual errors in return filing.

Simplify Your GST Filing Process

Don't let GST compliance burden your business operations. Our expert team ensures accurate and timely filing of all your GST returns with complete peace of mind.

GST Filing FAQs

The penalty for late filing of GST returns is ₹50 per day per act (CGST + SGST) with a maximum of ₹5,000. For nil return, the penalty is ₹20 per day per act.

Still have questions?

Our tax experts are here to help you with personalized guidance for your specific situation.

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