Free tools
No sign-up, no email wall. Each of these computes locally and tells you plainly what it can and cannot check.
GST Calculator
Add or remove GST at any rate, with the CGST/SGST split worked out.
Company Name Check
Check a proposed company name against the MCA naming rules before you file.
PAN / GSTIN / CIN Format Check
Validate the structure and checksum of a PAN, GSTIN, CIN, TAN, DIN or IFSC.
Income Tax Calculator
Compare the old and new regimes for an individual, for the current year.
Due Date Finder
Tell us your business structure and registrations, and see every date you owe.
EMI Calculator
Monthly instalment, total interest and the full amortisation for a business loan.