GST Calculator: HSN & Invoice

GST Calculator, HSN/SAC Code Finder & E-Invoice Verifier — every everyday GST tool Indian businesses, shopkeepers, accountants and tax professionals need, in one fast, free and offline app.

Whether you are raising a bill, checking a GST rate, or making sure an e-invoice is genuine, GST Tools by Codetailor Softech Pvt Ltd saves you time and helps you stay GST compliant.

🧮 GST CALCULATOR
Calculate GST instantly on any amount. Add GST or remove GST (reverse GST) at any slab — 0%, 5%, 12%, 18% or 28% — with an automatic CGST + SGST split and an IGST view. Perfect for quick billing, quotations, invoices and price checks.

🔍 HSN & SAC CODE FINDER
Search the full notified list of HSN codes (goods) and SAC codes (services) with their current GST rates. Available in both English and Hindi. Find the right HSN/SAC number and tax slab in seconds — no more manual rate lookups.

🧾 E-INVOICE VERIFIER (QR CODE SCANNER)
Scan the signed QR code on any GST e-invoice and verify its authenticity against IRP records — even offline. Confirm the IRN and signed invoice details so you can trust every e-invoice before you act on it.

✨ WHY CHOOSE GST TOOLS?
• All-in-one — GST calculator, HSN/SAC search and e-invoice verifier together
• Fast & offline — the core tools work without internet
• Privacy-first — we never ask for your GST portal password, OTP or bank details
• Clean, simple and easy to use
• Made in India 🇮🇳

👥 PERFECT FOR
Small business owners, shopkeepers, traders, wholesalers, retailers, distributors, accountants, CAs, tax consultants, freelancers and anyone who deals with GST billing, invoicing and compliance.

🔑 EVERYTHING GST, IN ONE APP
GST rate finder • HSN code search • SAC code list • GST calculator • reverse GST calculator • CGST, SGST & IGST split • e-invoice QR verification • GST tax slabs — all in a single lightweight app.

📚 OFFICIAL DATA SOURCES
The GST information in this app is based on publicly available resources published by the Government of India:
• GST rates & HSN/SAC codes — https://cbic-gst.gov.in/gst-goods-services-rates.html
• E-invoice (IRP) portal — https://einvoice1.gst.gov.in
• GST portal — https://www.gst.gov.in

⚠️ DISCLAIMER
GST Tools is an independent app by Codetailor Softech Pvt Ltd. It is NOT affiliated with, authorised by or endorsed by any government entity, and it does not provide or facilitate any official government services. All information is sourced from the publicly available government resources listed above and is intended for general informational purposes only. Always refer to the official government websites for authoritative and up-to-date information.

📥 Download GST Tools today and make GST calculation, HSN code search and e-invoice verification effortless.