GSTR-8: Return Filing, Format, Eligibility & Rules

What is GSTR-8?

GSTR-8 is a return specifically designed for e-commerce operators registered under GST who are required to collect Tax Collected at Source (TCS) on supplies made through their platforms. The return captures details of supplies facilitated, TCS collected from sellers, tax paid, interest (if any), and any amendments to earlier statements. Filing GSTR-8 ensures that the TCS amount is reflected in the supplier’s purchase records (GSTR-2A/2B) so they can claim the appropriate credit.

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Who Must File GSTR-8?

All persons who qualify as e-commerce operators (those who own or manage a digital or electronic facility or platform such as marketplaces) and are liable to collect TCS under GST must file GSTR-8. This includes large marketplaces, aggregators, and online platforms that facilitate sales by third-party sellers.

Note: Registration and TCS liability depend on thresholds and specific notifications — always check for official guidance.

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Pre-requisites for Filing GSTR-8

Before filing GSTR-8, e-commerce operators must ensure the following conditions are met:

• The operator is registered under GST and holds an active GSTIN for the relevant tax period.
• They have a valid User ID and password to access the GST Portal.
• A valid and active Digital Signature Certificate (DSC) is available, which is neither expired nor revoked. Alternatively, the operator can use a registered mobile number on the portal for EVC-based verification.
• The operator has collected the Tax Collected at Source (TCS) for the respective tax period before filing the return.

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GSTR-8: Due Date and Frequency

GSTR-8 is a monthly return. The standard due date is the 10th of the month following the tax period (for example, March’s GSTR-8 is due by 10 April). This timeline is important for timely TCS deposit and for sellers to see the TCS credit reflected in their records. Keep an eye on government notifications because due dates and portal rules can change.

Here are the GSTR-8 due dates for FY 2025-26 -

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GSTR-8 Format

The GSTR-8 return contains 9 sections, including:

1. GSTIN

Enter your GSTIN in this field. If your permanent GSTIN hasn’t been issued yet, you can temporarily use your provisional ID instead.

2. Legal Name of the Registered Person

Your legal name as registered under GST will appear automatically once you log in to the common GST portal. You don’t need to fill it manually.

3. Details of Supplies Made Through E-commerce Operator

Mention the total value of supplies made to both registered and unregistered buyers, along with the value of supplies returned by them.

The net amount on which TCS is calculated equals the difference between total supplies and returns.

4. Amendments to Earlier Statements

If you need to correct or modify information reported in previous GSTR-8 filings, you can do so under this section. It allows you to update details from earlier months.

5. Details of Interest

When an e-commerce operator delays the payment of TCS, an interest charge becomes payable for the late remittance of that amount.

6. Tax Payable and Paid

This part displays the total tax liability and payment details under each category — CGST, SGST, and IGST — as applicable to the reporting period.

7. Interest Payable and Paid

In case of delayed tax payment, interest at 18% per annum is charged on the outstanding tax amount until the liability is cleared in full.

8. Refund Claimed from Electronic Cash Ledger

You can request a refund from your electronic cash ledger only after all TCS dues for the tax period have been fully paid and cleared.

9. Debit Entries in Cash Ledger for TCS/Interest Payment

After you make the TCS payment and submit your GSTR-8, the collected tax automatically appears in Part C of GSTR-2A for the respective suppliers.

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How to file GSTR-8?

E-commerce operators can prepare and file GSTR-8 via:

• GST Portal: Log in with GST credentials, navigate to the GSTR-8 form, upload supply details (manually or via JSON), and submit.
• Third Party Websites: Many platforms like Tax2win provide expert-assisted GST filing services to make sure that your GST filing journey is hassle-free and seamless. compatible with the GST portal to reduce manual entry and errors.
• GSP/ASP providers: Large operators often use GST Suvidha Providers (GSPs) for bulk filing and reconciliation.

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Revision, Errors & Reconciliations

GSTR-8 cannot be revised once filed. Mistakes in a month’s filing must be corrected in subsequent GSTR-8 returns by providing amendments. Because of this, regular reconciliation between platform records and the GST portal is crucial to avoid disputes and ensure sellers get timely TCS credits.

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Penalty for not Filing GSTR-8

If a taxpayer fails to file GSTR-8 by the due date, a late fee of ₹100 per day each under CGST and SGST applies, making it ₹200 per day in total. The total late fee, however, cannot exceed ₹5,000.

No late fee is charged under IGST for delayed filing.
Apart from the late fee, the taxpayer is also liable to pay interest at 18% per annum on the pending tax amount. The interest is calculated from the day after the due date till the actual date of payment.

Late filing of GSTR-8 attracts late fees (commonly Rs. 100 per day under CGST and Rs. 100 under SGST, subject to any caps and changes) and interest on unpaid tax at the prescribed rate. Non-compliance can also cause delays in sellers’ ITC and trigger audits or notices. Operators should prioritize timely filing and accurate TCS deposits.

Need help with GST registration, GST filing & GST notice assistance? Simply connect with our tax experts!

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