GST & Indirect Tax Tools
Tools for GST registration, return filing, ITC, RCM and rate lookup.
Note: Tools are simplified and for general reference only. They do not constitute professional advice.
Quick answers
What do the GST tools cover?
These tools cover everyday GST tasks for Indian businesses: checking whether registration is required, looking up rates by HSN or SAC code, estimating input tax credit and net liability, checking reverse charge, preparing an invoice, and working out late fees and return due dates.
Who are the GST tools for?
They are for GST-registered businesses, traders, freelancers and accountants who want a quick first estimate before filing a return, raising an invoice or deciding on registration. Each tool is a starting point for your own review, not a substitute for advice on a specific transaction.
Available GST & Indirect Tax Tools
Free, instant gst & indirect tax calculators and checkers, with no sign-up required. Results are indicative and for general reference.
GST Rate Finder & HSN/SAC Lookup
Search GST rates by HSN or SAC code, or by goods/service name.
Open Tool →GST Invoice Generator
Generate a compliant GST invoice with CGST/SGST/IGST split — download as PDF.
Open Tool →GST Return Due Date Calendar
Monthly, quarterly and annual due dates — GSTR-1, 3B, 9, 9C and CMP-08.
Open Tool →GST Input Tax Credit (ITC) Calculator
Calculate eligible ITC and identify blocked credits under Section 17(5).
Open Tool →GST Liability Calculator
Compute net GST payable after ITC adjustment — intra/inter-state scenarios.
Open Tool →Reverse Charge Mechanism Checker
Identify whether RCM applies to a specific transaction or supplier.
Open Tool →GST Late Fee & Interest Calculator
Compute late fees and interest under Sec 47 & 50 for delayed filings.
Open Tool →GST Registration Eligibility Checker
Check whether you must register under GST based on turnover and supply type.
Open Tool →GSTIN & PAN Format Validator
Check a GSTIN or PAN offline: state code, embedded PAN, entity type and the mod-36 check digit.
Open Tool →E-Invoice & E-Way Bill Checker
Check whether a supply needs an e-invoice (IRN) and a movement of goods needs an e-way bill.
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