Free Indian tax & finance calculators for FY 2026-27 (AY 2026-27).
Old vs New Regime, HRA, Advance Tax, NPS, NRI residency (182/120-day),
DTAA (US/UK/Canada), RSU vesting, FIRE, and 30+ more.
β’ All tax formulas CA-reviewed
β’ No signup, no login
β’ Privacy-first β everything runs client-side in your browser
β’ 100% free
Built in Surat, India.