GST for E-commerce Sellers: TCS, Registration & Compliance 2026 – Complete Guide
A young woman from Pitampura came to me last year. She had been making and selling hand-embroidered cushion covers on Meesho for about eight months — earning around ₹18,000 a month, which she was quite happy about. Someone told her she needed GST registration. She pushed back: “But my turnover is under ₹40 lakh. Why would I need GST?” I had to explain to her that the rules are fundamentally different for marketplace sellers, and that she had already been selling without registration — which is a compliance gap.
This is probably the most common misconception in Indian e-commerce. The ₹40 lakh threshold that applies to most businesses does not apply to marketplace sellers. If you sell goods through Amazon, Flipkart, Meesho, Myntra, Nykaa, or any other platform that collects TCS — you need GST registration from your very first sale. Full stop. No turnover threshold applies.
This guide covers everything a marketplace seller needs to understand about GST in 2026 — registration rules, TCS mechanics, return filing, ITC claims, and the reconciliation discipline that keeps automated notices away.
GST Registration — The Marketplace Rule That Has No Exceptions
Under normal GST law, goods sellers cross the registration threshold at ₹40 lakh annual turnover (₹20 lakh for services, ₹10 lakh in special category states). But Section 24(ix) of the CGST Act creates a separate mandatory registration category for e-commerce sellers — and there is no turnover threshold attached to it.
The logic is actually straightforward once you understand TCS. The marketplace platform collects TCS at 1% of your taxable sales and deposits it with the government. For TCS to flow through correctly, the seller must have a valid GSTIN registered on the platform. No GSTIN, no TCS compliance, no seller activation. The registration is baked into how the system works.
| Seller Type | Registration Threshold | Reason |
|---|---|---|
| Goods seller on marketplace (Amazon, Flipkart, Meesho, etc.) | ❌ No threshold — first sale | Mandatory under Section 24(ix) — TCS requires GSTIN |
| Service seller on marketplace (general services) | ₹20 lakh (normal threshold applies) | TCS applies after threshold is crossed |
| Service seller — Section 9(5) notified services (cab, food, accommodation) | Special rules — platform pays GST | Platform is deemed supplier — different framework |
| Own website / app seller | ₹40 lakh (goods) / ₹20 lakh (services) | No TCS, no marketplace — normal thresholds apply |
| Composition scheme dealer | N/A — cannot sell on marketplace | Section 10(2)(d) bars composition dealers from platforms collecting TCS |
How TCS Actually Works — Not an Additional Tax
The name “Tax Collected at Source” makes it sound like something extra is being charged. It is not. TCS is an advance collection mechanism — the platform collects a portion of the tax you owe anyway and pays it to the government on your behalf. You get the credit back against your monthly GST liability.
Here is what happens in practice. You sell ₹1,00,000 worth of goods on Flipkart in a month. The platform settles ₹99,000 to your account — the ₹1,000 difference is TCS at 1%. Flipkart files its monthly GSTR-8 by the 10th of the following month, reporting your sales and the TCS deducted. That ₹1,000 then appears in your GSTR-2B as a credit in your electronic cash ledger. When you file your GSTR-3B, you use that ₹1,000 to offset your output GST liability — reducing your cash payment accordingly.
A Simple TCS Flow Example
| Item | Amount |
|---|---|
| Gross sales on Flipkart (July 2026) | ₹1,00,000 |
| Returns in July | ₹15,000 |
| Net taxable supplies (TCS base) | ₹85,000 |
| TCS at 1% | ₹850 |
| Settlement received | ₹84,150 (after commission and TCS) |
| Your output GST liability on ₹85,000 | ₹12,750 (at 15% effective — example) |
| TCS credit from GSTR-2B | ₹850 |
| Net cash GST payable | ₹11,900 |
Two things worth noting here. First, TCS is computed on the net taxable supplies — returns are deducted from the base before TCS is applied. Second, you cannot claim the TCS credit until Flipkart files its GSTR-8. If the platform files late, your credit is delayed — and there is not much you can do except follow up with seller support.
The Monthly Returns You Must File
As a regular marketplace seller, you file the standard GST returns — no special forms. The filing discipline is what separates sellers who sail through assessments from those who get notices every quarter.
| Return | What It Covers | Due Date | Who Files |
|---|---|---|---|
| GSTR-1 | All outward supplies — sales, credit notes, amendments | 11th of following month (monthly); 13th for quarterly filers | Seller |
| GSTR-3B | Summary — output tax, ITC claimed, TCS credit, net payment | 20th of following month (monthly) | Seller |
| GSTR-8 | TCS collected from sellers — marketplace’s return, not yours | 10th of following month | Marketplace platform |
| GSTR-9 | Annual return — reconciliation of the full year | December 31 of next financial year | Seller (if turnover above ₹2 crore) |
Can I File Quarterly Instead of Monthly?
If your annual turnover is below ₹5 crore, you can opt for the QRMP scheme — Quarterly Return Monthly Payment. Under QRMP, you file GSTR-1 and GSTR-3B quarterly but make monthly tax payments. This reduces the filing burden. However, a few things to keep in mind: the quarterly GSTR-1 deadline is the 13th of the month following the quarter, and TCS credit from GSTR-2B is still claimed quarterly. For high-volume sellers with frequent returns and reconciliation needs, monthly filing is often cleaner despite the higher frequency.
What Goes Into GSTR-1 for a Marketplace Seller
Marketplace sellers typically deal with a high volume of B2C sales to unregistered individuals — these go in Table 7 (B2C small supplies, if below ₹2.5 lakh per state for inter-state) or Table 5/6 (B2C large). Credit notes for returns go in Table 10. If you also sell B2B to registered businesses, those invoices go in Table 4 with the buyer’s GSTIN.
The key point: report gross sales. Not net settlement. Not sales minus commission. Gross invoice value is your GSTR-1 entry. Adjustments happen through credit notes and expense ITC — not by shrinking the turnover figure.
ITC Claims — What You Can and Cannot Recover
One of the genuine advantages of being a regular GST registrant (as opposed to a composition dealer) is the ability to claim Input Tax Credit on business expenses. For marketplace sellers, the ITC opportunities are more significant than most people realise.
What You Can Claim ITC On
- Raw materials and packaging: GST paid on the inputs that go into your products — fabrics, components, packaging materials — is claimable as ITC, reducing your net GST outflow
- Marketplace commission: Amazon, Flipkart, and other platforms charge commission at 18% GST and issue tax invoices. The GST on this commission is ITC you can claim
- Shipping and logistics: GST paid on courier services and logistics through the platform or third parties — claimable with valid invoice
- Advertising on platform: Sponsored listings and platform advertising attract 18% GST — claimable ITC
- Accounting and professional fees: CA fees, GST filing services, legal fees — claimable with proper invoices
- Photography and content: Product photography, video production for listings — generally claimable as business services
What You Cannot Claim ITC On
- Personal expenses even if paid from business account
- Motor vehicles (with limited exceptions)
- Food and beverages for employees (unless you run a restaurant or catering business)
- Any input where the supplier has not filed their return and the invoice does not appear in your GSTR-2B
Section 9(5) — When the Platform Pays Your GST
If your sales fall under the Section 9(5) notified categories, the compliance picture looks completely different. The currently notified services are passenger transport (Ola, Uber, Rapido), restaurant and food delivery (Swiggy, Zomato), accommodation services (Oyo, Airbnb-type platforms), and housekeeping or domestic services (Urban Company).
For these services, the platform is the deemed supplier. Swiggy pays the GST on restaurant orders, not you. Ola pays the GST on cab rides, not the driver. You as the service provider do not issue a GST invoice to the customer for these supplies, do not charge GST, and TCS under Section 52 does not apply. The platform’s GSTR-8 does not cover Section 9(5) supplies — because TCS is only on supplies where the platform is facilitating, not where it is the deemed supplier.
What does this mean practically? If you are a restaurant on Swiggy, your Swiggy orders are outside your GST return altogether — Swiggy handles that liability. If you also take direct dine-in orders or have your own delivery app, those supplies are yours to report normally in your GSTR-1 and GSTR-3B.
Reconciliation — The Monthly Discipline That Prevents Notices
I want to be direct about this: the majority of GST notices that marketplace sellers receive are not because of deliberate evasion. They are because of reconciliation mismatches — gaps between what the seller reports in GSTR-1, what the marketplace reports in GSTR-8, and what the seller claims in GSTR-3B.
From April 2026, the GST system’s automated reconciliation engine compares these three data sets every month. Any persistent gap generates a Section 61 scrutiny communication automatically. No officer needs to look at your file for this to happen.
The monthly reconciliation you need to do — before filing GSTR-3B — involves three checks:
Check 1: Does your GSTR-1 outward supply figure match the sales reported in the marketplace’s GSTR-8? The numbers should align on gross sales (net of returns that were processed in the same period). If they do not, find the gap before filing — not after.
Check 2: Does the TCS credit you are claiming in GSTR-3B match exactly what is in your GSTR-2B for that month? Do not estimate. Do not use the platform’s dashboard figure. Use only what GSTR-2B shows.
Check 3: Are all your credit notes for returns reported in GSTR-1 (Table 10 for B2C, Table 9B for B2B), and are the net figures consistent between GSTR-1 and GSTR-3B? A credit note in GSTR-1 that is not reflected in GSTR-3B creates a liability mismatch.
Twenty minutes of reconciliation before filing every month saves hours of notice-response work later. It really is that straightforward.
Common Situations and How to Handle Them
Situation 1 — Selling in multiple states:
If you sell across state lines — which most marketplace sellers do — those are inter-state supplies attracting IGST. You charge IGST at the applicable rate. TCS on inter-state supplies is 1% IGST (not split CGST+SGST). Ensure your GSTR-1 correctly classifies intra-state (CGST+SGST) vs inter-state (IGST) supplies by the customer’s delivery state.
Situation 2 — You sell on multiple platforms:
Each platform files its own GSTR-8 with the TCS it collected. Your GSTR-2B will show TCS credits from each platform separately. Reconcile each platform’s TCS against their respective GSTR-8 before claiming. If you sell on Amazon and Meesho and Nykaa — three separate GSTR-8 reconciliations every month. It sounds tedious but it is important.
Situation 3 — High-value B2B sales through marketplace:
If you sell to registered businesses through a marketplace (common for industrial goods or B2B platforms), those invoices go in Table 4 of GSTR-1 with the buyer’s GSTIN. The buyer can then claim ITC. Make sure their GSTIN is correctly captured at the time of order — not added after the fact.
Situation 4 — Platform commission GST not matching:
Sometimes the GST on platform commission in your GSTR-2B does not match what you see on the platform dashboard. Usually this is a timing issue — the platform might have issued the commission invoice in a different month than when you expected it. Always use GSTR-2B as the source of truth for ITC claims — not the platform dashboard.
E-commerce Returns & Credit Notes — GST Treatment Guide
Frequently Asked Questions
Q1. I only sell within my own state. Do I still need mandatory registration as a marketplace seller?
Yes. The mandatory registration under Section 24(ix) applies regardless of whether your sales are intra-state or inter-state. Certain states have issued notifications allowing small intra-state goods sellers on marketplaces to operate without registration under specific conditions — but these are narrow exceptions. Check the current position in your state and platform terms before assuming the exception applies to you.
Q2. The platform is showing a different TCS amount than what I calculated. Who is right?
The platform’s GSTR-8 filing is the authoritative record — not the dashboard figure. Platform dashboards sometimes lag or include estimates. Your GSTR-2B, which pulls from the platform’s GSTR-8, is what determines your claimable credit. If there is a consistent discrepancy, raise a ticket with the platform’s seller support and ask them to reconcile their GSTR-8 with your sales data.
Q3. Can I switch from regular GST registration to composition scheme if my turnover drops?
You can switch to composition, but you will then be ineligible to sell on marketplaces under the composition scheme. Section 10(2)(d) is a hard bar. If you want to continue marketplace selling, you must stay on regular registration regardless of turnover. If you are willing to exit marketplaces and sell only through your own channels, composition is an option — but think carefully before switching.
Q4. I sell both on Amazon and through my own website. How does GST differ?
Amazon sales: TCS applies, GSTR-8 reconciliation needed, mandatory registration from first sale. Own website sales: no TCS, normal registration threshold (₹40L for goods), no platform GSTR-8 to reconcile against. In GSTR-1, both are reported together as your outward supplies. The source (platform vs own website) does not change the GST rate or invoice format — just the TCS applicability.
Q5. What happens if my annual turnover stays below ₹20 lakh even after several years of marketplace selling?
For goods sellers on marketplaces, turnover is irrelevant — mandatory registration applies regardless. You stay registered, file monthly (or quarterly under QRMP), and continue claiming TCS credit. Some sellers find that the ITC benefits of registration — on packaging, shipping, and platform commissions — actually make registration financially advantageous even at small turnover levels. So it is not all downside.
Closing Thoughts
My client from Pitampura registered for GST within two weeks of our conversation. She was initially worried it would mean more complexity and costs — but once she understood ITC, she realised she had been overpaying on packaging and courier costs without recovering the GST on them. Her net tax position actually improved after registration because she could now claim that ITC.
E-commerce GST is genuinely not complicated once you understand the framework. Register correctly, file on time, report gross sales not net settlements, reconcile TCS from GSTR-2B, and claim ITC on legitimate business expenses. That is the entire playbook. The sellers who get into trouble are almost always those who are either unregistered when they should not be, or registered but filing incorrectly because they do not understand the gross vs net reporting requirement.
If you are a new marketplace seller reading this — get registered before you list your first product. The process takes about a week and will save you from a much more stressful conversation later.
Related Guides
Official Government Resources
- GST Portal — Registration, GSTR-1, GSTR-3B, GSTR-2B, refund application
- GST Quick Links — Track TCS credit, verify GSTR-8 from platform
- CBIC Portal — Section 9(5) notifications, Section 52 TCS rules, official circulars
For more GST updates visit: TaxPremia.com