Free Tools

Free GST Tools for Indian Businesses

Calculate GST, generate invoices, and find HSN codes — instantly, on any device. No login required.

Updated for GST 2026 No signup needed Works on mobile
Most Popular

GST Calculator

Calculate GST instantly using 2026 rates (0%, 5%, 18%, 40%). Add or remove GST, split CGST/SGST vs IGST.

CGST / SGST IGST Inclusive / Exclusive
Use Tool
Print Ready

Free Invoice Generator

Create and print a GST-compliant invoice in seconds. Add line items, auto-calculate taxes, and save as PDF.

Multi-item Auto tax PDF / Print
Use Tool
50+ Products

HSN Code Finder

Find HSN codes and 2026 GST rates for common products. Search by product name or HSN code — instant results.

Live search 2026 rates Categories
Use Tool
Updated for GST 2026: All tools use the new slab structure — 0%, 5%, 18%, and 40% (effective Sep 22, 2025). The 12% and 28% slabs no longer apply.

Want to automate all your GST billing?

ZeroBillBook does invoicing, inventory, and GSTR reports — free forever.

Get Started Free View Plans