E-Commerce GST Filing Services in Coimbatore | Accurate & Timely
Selling on Amazon, Flipkart, or Meesho? E-commerce GST compliance involves monthly return filing, TCS reconciliation, and marketplace data matching — one mismatch triggers notices. At WINTRUST SOLUTIONS, we handle your complete e-commerce GST filing so you stay compliant and never lose TCS credits.
Monthly, Quarterly, and Annual GST Return Filing
We handle all types of GST returns for e-commerce sellers, including:
GSTR-1
Invoice-wise outward supply details — every B2B invoice, B2C sale, export, and credit/debit note. Filed monthly by the 11th. Must match your marketplace sales reports exactly.
GSTR-3B
Monthly summary return with tax payment. Includes taxable sales, input tax credit (ITC) utilization, and TCS credit claims. Due by the 20th. Since January 2026, the portal blocks filing if ITC doesn't match GSTR-2B.
GSTR-9
Annual return — comprehensive yearly filing summarizing all monthly returns, ITC reconciliation, and tax adjustments for the entire financial year.
GSTR-2B Reconciliation
Auto-generated statement showing your eligible ITC and TCS credits from marketplace GSTR-8 filings. We verify every entry to ensure you claim all credits and catch mismatches before they trigger notices.
Why Timely E-Commerce GST Filing Matters
Avoid Penalties & Interest
Late filing attracts ₹50 per day (₹20 for nil returns) plus 18% annual interest on outstanding tax. Continuous non-filing blocks e-way bill generation and can freeze your marketplace payouts.
Claim Your TCS Credits
Marketplaces deduct 1% TCS on every sale. At ₹15 lakh monthly sales, that's ₹1,800/month sitting unclaimed if you don't reconcile and file on time. Over a year, that's ₹21,600+ in working capital you're leaving on the table.
Prevent Mismatch Notices
The GST system auto-flags differences between GSTR-1 and GSTR-3B via Rule 88C. Marketplace data must match your filed returns. One mismatch = scrutiny notice + interest liability. Professional reconciliation prevents this.
Our E-Commerce GST Filing Services Include
Monthly GSTR-1 Filing
We prepare and file your GSTR-1 with invoice-wise outward supply details, ensuring every B2B invoice, B2C sale, and credit/debit note is accurately reported and matches marketplace data.
Monthly GSTR-3B Filing
Summary return preparation including taxable sales, ITC utilization, TCS credit claims, and tax payment calculation. We follow the correct sequence: GSTR-1 → IMS review → GSTR-2B check → GSTR-3B filing.
TCS Reconciliation (Amazon, Flipkart, Meesho)
We download and match your marketplace settlement reports with GSTR-8 data to ensure every rupee of TCS deducted is correctly claimed in your electronic cash ledger. No credit left unclaimed.
Marketplace Data Reconciliation
We match sales, returns, commissions, shipping fees, and tax components from each platform's reports with your GST data. This prevents the GSTR-1 vs. GSTR-3B mismatches that trigger Rule 88C notices.
ITC (Input Tax Credit) Optimization
We review GSTR-2B to ensure you claim ITC on all eligible business expenses — packaging, logistics, advertising, platform commissions, and more. Smart ITC planning significantly reduces your net GST burden.
Annual Return (GSTR-9) Filing
Comprehensive yearly filing that summarizes all monthly returns, reconciles ITC, and presents accurate financial-year-level data. Filed with meticulous cross-verification against your books.
Our E-Commerce GST Filing Process
Data Collection (Days 1–5)
We collect monthly sales reports, settlement statements, and TCS data from all your marketplace seller dashboards (Amazon, Flipkart, Meesho, etc.) and reconcile them with your accounting records.
Reconciliation & Verification (Days 6–10)
We reconcile marketplace data with your sales register, verify TCS credits against GSTR-8 filings by operators, review GSTR-2B for ITC eligibility, and calculate your net taxable value after adjusting for returns and credit notes.
Return Preparation & Filing (Days 11–20)
GSTR-1 is filed by the 11th, followed by IMS dashboard review and GSTR-2B reconciliation. GSTR-3B is then prepared and filed by the 20th with accurate tax liability, ITC utilization, and TCS credit claims.
Confirmation & Reporting
You receive filing confirmation (ARN), a monthly compliance summary, and a TCS credit tracking report. We flag any pending credits or discrepancies for resolution in the next filing cycle.
E-Commerce Seller GST Compliance Calendar
A typical month for an e-commerce seller looks like this:
With Wintrust Solutions managing your filings, this entire process takes less than 2 hours of your time per month.
Common Mistakes E-Commerce Sellers Make in GST Filing
Not Reconciling TCS Credits
Many sellers never check Table 9 of GSTR-3B for TCS. At 1% of total marketplace sales, this means thousands of rupees sitting unclaimed every year.
GSTR-1 and GSTR-3B Mismatch
If sales reported in GSTR-1 don't match GSTR-3B, the GST system flags it via Rule 88C and issues an automated notice. This is the #1 reason for scrutiny among e-commerce sellers.
Ignoring Returns and Credit Notes
Customer returns must be adjusted through credit notes within the same financial year. If not, you end up paying GST on sales that were reversed.
Not Claiming ITC on Marketplace Commissions
Amazon, Flipkart, and Meesho charge 18% GST on their commissions. This is eligible for ITC. Many sellers miss this and overpay their GST.
Filing GSTR-3B Before GSTR-2B Review
Since January 2026, the portal blocks GSTR-3B filing if ITC claims don't match GSTR-2B. Filing without reviewing GSTR-2B first results in a blocked return and missed deadline.
Frequently Asked Questions
Related Services
Stop Losing TCS Credits. Start Filing Right.
E-commerce GST filing is complex — but it doesn't have to be your problem. Contact WINTRUST SOLUTIONS today and let our experts handle your monthly filing, TCS reconciliation, and marketplace compliance from end to end.
Get Expert GST SupportNeed Professional Tax Support in Coimbatore?
Get expert tax support and stay fully compliant without stress. Our experts are ready to help you with GST, ITR, TDS, business registration, loans, and health insurance advisory. Serving businesses across Coimbatore & Tamil Nadu.
+91 89409 88776wintrustsolutions@gmail.com