The E-Commerce Tax Automation Platform

We Simplify GSTR-1 Compliance for Online Sellers

GSTRFlow is built to eliminate the headache of manual GST filing. We transform complex sales reports from Flipkart, Amazon, Meesho, and Shopdeck into 100% portal-compliant GSTR-1 JSON reports in seconds.

100%

Portal Compatibility

< 10s

JSON Generation Time

Zero

Manual Formats Error

4+

Marketplaces Supported

Our Mission

E-commerce tax filing shouldn't require hiring expensive legal consultants or spending days converting spreadsheets. Our mission is to automate multi-channel e-commerce tax calculations into error-free, government-ready payloads so sellers can focus on growing their business.

Why GSTRFlow Exists

Marketplace tax reports (B2C sales, HSN summaries, Eco-Operator TCS data, and Document issue ranges) are scattered across different Excel structures. GSTRFlow unifies them into a single, standardized engine that formats data cleanly for direct upload to the GST Portal.

Engineered for Absolute Precision

How GSTRFlow handles your marketplace tax data with 100% accuracy

Multi-Marketplace Support

Direct parsing for Flipkart, Amazon, Meesho, and Shopdeck tax sheets with automated data sanitization and state code mapping.

Strict Schema Compliance

Sequential `doc_num` ordering, natural-sorted invoice ranges, sanitized integers/floats, and valid GST v3.2.4 structure.

100% Filing Guarantee

If a JSON file generated on our platform fails to upload on the GST portal, our technical team steps in to file on your behalf or issues a full refund.

Ready to File Your GSTR-1 in Seconds?

Upload your marketplace tax sheets, generate verified GST portal JSON files, and save hours of manual reconciliation every month.