If you operate an e-commerce marketplace that collects consideration for taxable supplies made by other suppliers, you may need to collect TCS and file GSTR-8. Merely hosting product listings or selling only your own inventory does not create a GSTR-8 obligation.
Key Takeaways
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GSTR 8 is a compulsory monthly GST return for e-commerce operators collecting TCS.
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It includes details of supplies, amendments, TCS collected, and tax payable.
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The due date for filing GSTR 8 is the 10th of the following month.
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Failure to file leads to late fees, interest charges, and affects suppliers’ ability to claim TCS credit.
What Is GSTR 8?
Form GSTR-8 is a monthly statement filed by an e-commerce operator required to collect TCS under Section 52 of the CGST Act.
The form reports taxable supplies made by other suppliers through the platform, supplies returned, the net amount liable for TCS, tax collected, amendments and payment details. It does not cover every order processed through the platform. Only supplies attracting TCS must be reported.
The main details reported include:
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Gross value of taxable supplies made through the platform
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Value of supplies returned during the month
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Net amount liable for TCS
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TCS collected under CGST, SGST, UTGST or IGST
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Supplier-wise details and amendments relating to earlier periods
Also Read About: What is Tax Collected at Source?
Who Should File GSTR 8?
GSTR-8 is mandatory for an e-commerce operator required to collect TCS under Section 52. The requirement applies when other suppliers make taxable supplies through the platform and the operator collects the consideration for those supplies.
Such an operator must obtain registration as a TCS collector irrespective of turnover. TCS registration may also be required in every state or union territory where the operator has a TCS collection obligation.
GSTR-8 is not required solely in the following cases:
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The operator sells only its own inventory. Section 52 applies to supplies made through the platform by other suppliers.
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The platform only connects buyers and sellers and does not collect consideration for the supplies.
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The operator has no TCS liability for the tax period and no transaction has been auto-populated in Table 4.
Also Read About: What is Goods and Services Tax (GST)?
Details Required in GSTR 8
GSTR-8 requires details of supplies attracting TCS, including supplies made by registered and eligible unregistered suppliers. The reported information allows suppliers to review and claim the TCS amount credited against their GST records:
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Supplies and Returns: Report the gross value of taxable goods or services supplied through the platform and the value of supplies returned during the month. The difference forms the net amount liable for TCS.
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TCS Collected: Break down the tax withheld into CGST, SGST, and IGST components. Based on delivery locations and specific transaction types.
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Previous Period Amendments: Correct earlier reporting mistakes, update revised merchant GSTINs, or account for delayed order cancellations from previous filing cycles.
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Interest Charges: Report applicable interest. If you deposit the collected tax late or underreport liabilities in prior filings.
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Tax Payable and Paid: Disclose the cash ledger debits used to settle your final tax and accrued interest obligations.
Due Date for Filing GSTR 8
The deadline falls on the 10th day of the month following your reporting period. Missing this cutoff harms your sellers. Since they cannot claim tax credits until your filing clears the system. If you file late, the government enforces strict financial penalties.
How to File GSTR 8 Online
Submitting monthly TCS data involves a straightforward sequence on the government portal. Ensure your seller data is ready before starting.
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Access gst.gov.in, open the Returns Dashboard, and select the correct financial year and month.
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Click the GSTR 8 tile. Report gross sales, returns, and net tax per seller. Update past mistakes here if needed.
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Verify your electronic cash ledger balance. Generate a PMT-06 challan to deposit missing funds.
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Offset the tax liability and authenticate the submission using your Digital Signature Certificate or Electronic Verification Code.
TCS Under GSTR 8
Collecting tax at source keeps your marketplace compliant. You deduct a small percentage from the merchant's final settlement and deposit it directly with the government.
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Current Rate: You withhold 0.5% total (0.25% CGST and 0.25% SGST, or 0.5% IGST) from the transaction.
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Net Value Calculation: Apply this rate strictly to net taxable supplies. Simply subtract customer returns from gross monthly sales to find your base.
For example, a supplier makes taxable supplies of ₹1,00,000 through an e-commerce platform.
Returns are ₹10,000.
Net taxable supplies = (₹1,00,000 - ₹10,000)
= ₹90,000
TCS at 0.5% = ( ₹90,000 * 0.5%)
= ₹450
When you file your monthly return, this deducted amount appears in the seller's electronic cash ledger. They use it to offset their own tax liabilities.
Amendment of GSTR 8
You cannot revise a GSTR 8 once you submit it. If you discover a mistake in your reported sales or tax figures, you must fix it during a future filing cycle.
You correct past errors by entering the adjusted figures into Table 4 of your next monthly filing. Keeping accurate transaction data makes it easier to spot and correct these reporting errors promptly.
Regular reviews prevent ongoing discrepancies and ensure your merchants receive their proper tax credits without delay.
Late Fees and Penalties for Non-Filing of GSTR 8
Delayed filing can postpone the availability of TCS credit to suppliers. The supplier cannot receive the amount in the electronic cash ledger merely because the operator has collected it. For delayed GSTR-8 filing, the statutory late fee is:
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₹100 per day under the CGST Act
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₹100 per day under the corresponding SGST or UTGST Act
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₹200 per day in total
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Maximum ₹5,000 under the CGST Act and ₹5,000 under the SGST or UTGST Act, resulting in a combined maximum of ₹10,000
Note: Interest at 18% per annum applies when the collected TCS is not deposited by the applicable due date. Interest runs from the day following the due date until the date of payment.
Conclusion
Filing GSTR 8 on time keeps your platform compliant and helps sellers claim TCS credit without delays. However, delayed filing during FY 2026-27 attracts a daily late fee, while delayed payment of the collected TCS attracts interest until the amount is deposited.
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