GST TCS Reconciliation — Unstick Your Working Capital

The TCS Problem for Marketplace Sellers
Every seller I work with runs into this: under GST law, ecommerce operators (Amazon, Flipkart, Meesho, etc.) must collect 0.5% TCS (Tax Collected at Source) on the net value of goods sold through their platform — I see this catch out almost every seller I talk to.
On paper, this is a credit you can claim when filing your GST returns. In practice, here's what I see with the D2C brands I work with:
- The marketplace TCS data almost never matches what my team finds in your GST returns — Different periods, different classifications, rounding differences
- I've seen the credit sit unclaimed for months — Until you reconcile and claim it in GSTR-2B
- At ₹10L/month in marketplace sales, that's ₹5,000/month I've watched founders leave stuck — Over a year, ₹60,000 in working capital trapped in the GST system
Step-by-Step TCS Reconciliation
Step 1: Download Marketplace TCS Certificates
- For Amazon, I always have my team start here: Seller Central → Reports → Tax Document Library → TCS Certificate
- For Flipkart, the same job goes through: Seller Hub → Payments → Tax Reports → TCS Certificate
- We download monthly TCS certificates (Form GSTR-8 filed by the marketplace)
- These certificates show me exactly what TCS was collected on your sales
Step 2: Match with GSTR-2B
- Next, I log in to the GST portal → Returns → GSTR-2B
- and navigate to the 'TCS Credit Received' section
- This is where I see the TCS credits reported by marketplaces against your GSTIN
- I compare each marketplace's TCS certificate total with the GSTR-2B amount
- The common mismatches I run into: timing differences (marketplace reported in different month), GSTIN errors, inter-state vs intra-state classification
Step 3: Reconcile Mismatches
- Timing mismatch: If Amazon collected TCS in March but reported in April, it will show in your April GSTR-2B. I tell clients to wait one month before flagging it.
- Amount mismatch: My team compares line by line. Common causes: returns processed after TCS collection, cancellations, GST rate differences.
- Missing entries: If TCS is on your certificate but not in GSTR-2B, I raise a ticket with the marketplace — they need to correct their GSTR-8 filing.
Step 4: Claim the Credit
- In the GSTR-3B filing, I include the TCS credit in the 'TCS credit received' field
- This offsets the GST liability for that month
- When the TCS credit exceeds the liability, I let the balance carry forward
Common TCS Issues and Fixes
| Issue | Cause | Fix |
|---|---|---|
| TCS not showing in GSTR-2B | Marketplace filed late or with wrong GSTIN | Raise ticket with marketplace seller support |
| Amount mismatch | Returns/cancellations processed differently | Reconcile with order-level data from marketplace reports |
| Inter-state vs intra-state wrong | Marketplace classified shipment origin incorrectly | Raise correction request with marketplace |
| Credit not reflecting in GSTR-3B | Didn’t include in the correct field | Ensure TCS credit is entered in Table 4 of GSTR-3B |
Pro Tips
- Reconcile monthly, not quarterly — Monthly reconciliation is what catches issues early for my team. Quarterly means 3 months of compounded mismatches.
- Use reconciliation software — I point clients to tools like ClearTax, Zoho Books, or TallyPrime — they have auto-reconciliation features that match marketplace TCS with GSTR-2B.
- Keep a TCS tracker spreadsheet — My team logs: marketplace, month, TCS amount on certificate, TCS amount in GSTR-2B, claimed in GSTR-3B, status (matched/pending/disputed).
- File on time — I've seen late GSTR-3B filing turn into late TCS credit claims, and that means longer working capital lockup.
Need Help With GST Compliance?
At Growww Tech, my team and I help ecommerce sellers set up proper GST workflows and reconciliation processes. Don’t leave money stuck in the system.
Related reading:
- Ecommerce Growth & StrategyCashfree, Razorpay and PayU all cover the basics. Here is how they compare for an SME on cost, settlement speed, onboarding, payment coverage and support.
- Ecommerce Growth & Strategy
Saree Suppliers in India: Cluster-by-Cluster Guide (2026)
Looking for saree suppliers and manufacturers in India? Skip the IndiaMART rabbit hole. We’ve built and shipped 200+ Shopify stores — here’s our hand-vetted, cluster-by-cluster guide to who supplies what (Surat printed sarees to Banaras handloom), with direct WhatsApp contacts, MOQs, and the operator’s view of where each cluster actually adds value to your inventory. - Ecommerce Growth & Strategy
Annual Content Report — What Worked, What Flopped
We published 100+ blog articles in our first year.
Want this applied to your brand?
A 30-minute call — we'll map what works for your store, not a generic playbook. No sales pitch.


