About CalcGuru
Free, accurate Indian tax and finance calculators – built and maintained by a practising Chartered Accountant. No login. No upsell. Just clean tools that compute the right answer for the current Finance Act.
To make Indian tax and finance calculations accurate, current, and free for every taxpayer – from salaried employees and freelancers to small business owners and finance professionals.
Who Built This
A practising CA who got tired of out-of-date calculators on the internet
CA Tirumalesh Malla
Chartered Accountant | Practising in tax, audit and compliance
CalcGuru started as a personal frustration. Most online tax calculators in India are years out of date – some still use FY 2022-23 slabs, many forget the new regime defaults under Sec 115BAC, and almost none correctly handle the dual-threshold mechanics of Section 194C or the per-month rent rule under Section 194I post Finance Act 2025. I rebuilt them all from scratch, with the precision a CA’s own clients would expect, and made them free for everyone else too.
What You’ll Find
Three product lines, all free, all Finance Act 2025 current
14 Free Calculators
Income Tax, Advance Tax, TDS, GST, HRA, Capital Gains, Salary CTC, EMI, FD/RD, SIP, PPF, NPS, Gratuity. All Finance Act 2025 current.
Offline Excel Tools
Downloadable Excel utilities for the same calculations – perfect for keeping a working copy on your laptop or sharing with clients.
CA-Authored Guides
Practical articles on tax, salary structuring, deductions and investments – written by a practising CA, updated for FY 2026-27.
Why CalcGuru
What makes us different from the dozen other tax calculator sites
Built by a Chartered Accountant
Every calculation is reviewed against the actual provisions of the Income Tax Act, GST Act, and the latest Finance Act amendments – not copied from another website.
Always FY-Current
Updated for Finance Act 2025 amendments effective FY 2026-27 – including the 8-metro HRA expansion, monthly rent threshold under 194I, the new 194T section, and 206AB omission.
Genuinely Free
No login, no signup, no premium tier locked behind a paywall, no email harvesting, no ads cluttering the result. Use it once, use it daily – same experience.
India-First Logic
Built around Indian tax mechanics – dual thresholds for 194C, per-month basis for 194I/194-IB, surcharge slabs for non-residents, old vs new regime side-by-side, etc.
Start with a calculator
14 free Indian tax and finance calculators, all Finance Act 2025 current.