The Story Behind gstr1calculator.in

Welcome to gstr1calculator.in. We are dedicated to empowering small e-commerce sellers across India by simplifying the most complex part of their business — GST filing.

Our Roots

Based in the heart of Lanka City, Hojai (Assam), this tool was born out of a real-world necessity. Being an e-commerce seller myself, I experienced firsthand the struggle of calculating state-wise and HSN-wise data from complex Meesho, Flipkart, and Amazon reports every single month.

What used to take days of manual Excel work — filtering thousands of rows, subtracting returns, grouping by state and HSN code — inspired me to build something better.

Our Mission

I, Sanathoiba Singha, decided to build a solution that doesn't require a CA or expensive software for basic GST filings. My mission is to provide an affordable, fast, and 100% secure GSTR-1 tool that any seller — big or small — can use confidently every month.

Why We Are Different

Unlike other platforms, we value your privacy above everything. Our calculator processes your marketplace reports entirely within your browser — your sensitive business data never leaves your device and never reaches our servers.

We also understand that every rupee matters for a small seller. That's why our tool is priced at just ₹99 per filing — a fraction of what you'd pay an accountant for the same work.

What We Support

The GSTR-1 Calculator generates portal-ready summaries for:

• Table 7 — State-wise B2C sales breakdown
• Table 8 — Nil-rated and exempted supplies
• Table 12 — HSN-wise summary
• Table 13 — Document summary (invoice counts)

For all three major platforms: Meesho, Amazon India, and Flipkart.