TDS and TCS under GST: Rates, Deductions, and Annual Compliance (2026)

Under the Goods and Services Tax (GST) framework in India, Tax Deducted at Source (TDS) and Tax Collected at Source (TCS) serve as vital anti-evasion and audit mechanisms. Designed to track high-value government contracts and e-commerce transactions, these provisions require specific entities to deduct or collect tax at the source of transaction.

However, many business owners, government contractors, and e-commerce sellers confuse GST TDS/TCS with Income Tax TDS/TCS, miss statutory filing deadlines for GSTR-7 and GSTR-8, or fail to claim their available cash ledger credits.

In this comprehensive 2026 guide, we break down everything you need to know about GST TDS and TCS: Section 51 & 52 applicability rules, rates, return filings, how suppliers claim credits in their Electronic Cash Ledger, and how to automate compliance.

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1. What is TDS and TCS under GST?

While traditional TDS/TCS operates under the Income Tax Act, GST TDS and TCS are governed by the Central Goods and Services Tax (CGST) Act under Section 51 and Section 52.

• GST TDS (Section 51): Specified entities (Government departments, PSUs, local authorities) deduct a fixed percentage of tax when making payments to suppliers for contracts exceeding ₹2.50 Lakh.
• GST TCS (Section 52): E-Commerce Operators (Amazon, Flipkart, Swiggy, etc.) collect a fixed percentage of tax on the net value of taxable supplies made through their online platforms by marketplace sellers.

💡 Core Purpose:
Both GST TDS and TCS ensure an indelible audit trail of commercial sales on the GST portal, preventing under-reporting of revenue.

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2. GST TDS Under Section 51: Rates & Applicability

Section 51 mandates specific buyers to deduct GST TDS when making payment to suppliers under a single contract.

Who Must Deduct GST TDS?

1. Central and State Government departments and establishments.
2. Local authorities (Municipal Corporations, Panchayat bodies).
3. Governmental agencies.
4. Public Sector Undertakings (PSUs) such as BHEL, NTPC, ONGC, etc.
5. Authorities, boards, or bodies established by Parliament or State Legislature with 51%+ government equity.
6. Societies established by Central/State Governments under the Societies Registration Act.

Contract Threshold Limit:

TDS applies only if the total value of supply under a single contract exceeds ₹2,50,000 (excluding GST taxes).

GST TDS Tax Rates:

• Intra-State Supply: 2% Total (1% CGST + 1% SGST)
• Inter-State Supply: 2% IGST

⚠️ The Location Exemption Exception:
No GST TDS is deducted if the Location of Supplier and Place of Supply are in State A, but the Recipient State of Registration is in State B.

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3. GST TCS Under Section 52: E-Commerce Operators (ECOs)

Section 52 governs marketplace sellers operating through digital platforms. Every E-Commerce Operator (ECO) that collects consideration on behalf of marketplace sellers must collect TCS.

Who Must Collect GST TCS?

Every E-Commerce Operator (e.g., Amazon, Flipkart, Myntra, Swiggy, Zomato) that facilitates the supply of goods or services through its platform where consideration is collected by the operator.

GST TCS Tax Rates:

• Intra-State Supply: 1% Total (0.5% CGST + 0.5% SGST)
• Inter-State Supply: 1% IGST

Net Taxable Value Calculation:

TCS is collected on the Net Value of Taxable Supplies:

Net Taxable Value = Total Value of Taxable Supplies − Total Value of Sales Returned

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4. Return Filings: GSTR-7 and GSTR-8

Both TDS deductors and TCS collectors must file specialized monthly returns on the GST portal:

1. Form GSTR-7 (GST TDS Return)

• Filed by: Government departments and entities deducting TDS under Section 51.
• Due Date: On or before the 10th of the following month.
• TDS Certificate: After filing GSTR-7, a system-generated TDS Certificate in Form GSTR-7A is issued to the supplier.

2. Form GSTR-8 (GST TCS Return)

• Filed by: E-Commerce Operators collecting TCS under Section 52.
• Due Date: On or before the 10th of the following month.
• Annual Statement: E-commerce operators must also file an annual statement in Form GSTR-9B by 31st December following the financial year.

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5. How Suppliers Claim GST TDS/TCS Credits

A common question among government contractors and e-commerce sellers is: Where does the deducted/collected tax go?

The deducted TDS and collected TCS amounts do not disappear—they belong to the supplier!

Step-by-Step Credit Claim Process:

1. Portal Reflection: Once the deductor files GSTR-7 or collector files GSTR-8, the details auto-populate in the supplier's "TDS and TCS Credit Received" tab on the GST portal.
2. Acceptance Workflow: The supplier logs into the GST portal, navigates to Services ➔ Returns ➔ TDS and TCS Credit Received, verifies the figures, and clicks Accept.
3. Credit to Electronic Cash Ledger: Upon acceptance, the total TDS/TCS amount is credited directly to the supplier's Electronic Cash Ledger!
4. Utilization or Cash Refund: The supplier can use this cash ledger balance to pay future output GST liabilities in GSTR-3B OR file a RFD-01 refund claim to receive the cash directly into their bank account!

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6. Comparison: GST TDS vs. Income Tax TDS vs. GST TCS

Understanding the differences prevents errors when posting accounting journal entries:

Feature / Aspect	GST TDS (Section 51)	GST TCS (Section 52)	Income Tax TDS (Section 194C/J)
Governing Law	CGST Act, 2017	CGST Act, 2017	Income Tax Act, 1961
Deductor / Collector	Govt bodies & PSUs	E-Commerce Operators	All businesses above audit threshold
Rate	2% (1% CGST + 1% SGST)	1% (0.5% CGST + 0.5% SGST)	Varies (1%, 2%, 10%)
Threshold	Contract > ₹2.5 Lakh	No threshold limit	Section-wise thresholds
Destination Ledger	GST Electronic Cash Ledger	GST Electronic Cash Ledger	Income Tax 26AS / AIS
Return Form	GSTR-7 (by 10th)	GSTR-8 (by 10th)	Form 26Q / 24Q (Quarterly)

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7. Common Compliance Traps & Reconciliation Mismatches

1. Contract Splitting Misconception: Splitting a single contract of ₹4,00,000 into two work orders of ₹2,00,000 to avoid TDS violates anti-avoidance provisions if issued under a single master tender.
2. E-Commerce GSTR-1 vs GSTR-8 Mismatch: If an e-commerce seller reports ₹10,00,000 sales in GSTR-1 but Amazon reports ₹12,00,000 in GSTR-8, the GST portal generates an automated discrepancy notice.
3. Un-Accepted Portal Credits: Leaving TDS/TCS credits un-accepted on the GST portal keeps money locked away from your cash ledger, hurting monthly working capital.

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8. Automating GST TDS & TCS Accounting in ForkOST

Managing GST TDS/TCS deductions, cash ledger credits, and sales reconciliations manually is time-consuming.

ForkOST simplifies your TDS & TCS accounting:

• Automated Ledger Posting: Posts GST TDS deductions directly to separate asset ledgers (GST TDS Receivable / GST TCS Receivable).
• Portal Cash Ledger Sync: Automatically fetches accepted TDS/TCS credits from the GST portal into your cash ledger.
• E-Commerce Sales Matcher: Reconciles marketplace payouts against GSTR-8 TCS statements to ensure 100% turnover matching.
• 1-Click GSTR-3B Cash Offset: Automatically utilizes accumulated TDS cash credits against monthly tax liabilities.

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9. Frequently Asked Questions (FAQ)

Q1: Is GST TDS applicable to private limited companies selling to other private companies?

No. GST TDS under Section 51 applies only when specified government entities, PSUs, or local authorities purchase goods/services exceeding ₹2.5 Lakh under a single contract.

Q2: What happens if a government department files GSTR-7 late?

If the deductor delays filing GSTR-7, the supplier cannot accept the credit on the portal, delaying credit to their Electronic Cash Ledger. Late fees of ₹50/day apply to late GSTR-7 filings.

Q3: Can a seller claim a cash refund of unutilized GST TDS credit?

Yes! If a supplier has accumulated cash balance in their Electronic Cash Ledger from GST TDS/TCS that is not needed for output tax payments, they can file Form GST RFD-01 for an instant cash refund to their bank account.

Q4: Does GST TCS apply to offline retail sales?

No. GST TCS under Section 52 applies strictly to online supplies made through E-Commerce Operators. Direct offline sales to customers carry zero TCS.

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10. Conclusion

GST TDS and TCS provisions are essential mechanisms for tracking government sales and e-commerce transactions. By monitoring your monthly GSTR-7/GSTR-8 credits, accepting them promptly on the portal, and reconciling ledger entries against GSTR-1, you turn deducted tax into liquid working capital.

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