Free GST & Accounting Tools
Instant, free tools for Indian businesses — GSTIN verification, GST calculation, HSN code lookup, and filing deadline tracking.
GSTIN Validator
Verify any GSTIN number instantly. Check format, state, entity type, and Luhn check digit — 100% offline.
GST Calculator
Calculate CGST, SGST, IGST split for any amount. Supports all 12 GST rate slabs.
GST Due Date Calendar
Never miss a GST filing deadline. Shows GSTR-1, GSTR-3B, GSTR-9 due dates with QRMP support.
HSN/SAC Code Search
Look up HSN codes for goods and SAC codes for services. Search 22,000+ codes from the CBIC master list.
GST Notice Guide
Received a GST notice? Find your notice type, response deadline, and step-by-step action plan — all in plain English.