Why we built this
Most tax tools bury a simple answer under logins, ads and clutter. We wanted the opposite — a calculator that loads fast, runs entirely in your browser, keeps your numbers private, and tells you plainly which regime saves you money. No account. No upsell. No catch.
What it does today
- Compares the old and new tax regimes side by side for FY 2025-26 and FY 2026-27.
- Applies the Section 87A rebate, surcharge with marginal relief, and 4% cess accurately.
- Handles deductions — 80C, 80D, NPS, home-loan interest, HRA and employer NPS — with statutory caps built in.
- Recommends the cheaper regime and shows you the working.
Privacy first. The calculator never sends your financial figures to a server. Everything is computed locally on your device.
What’s coming: AI-powered optimization
The calculator answers “how much?” Next, we’re building the tools that answer “how do I pay less — legally?”
- Ask-anything assistant — describe your situation in plain English and get a precise, explained answer.
- Auto-optimization — personalised, lawful suggestions on investments and salary structuring to reduce your tax.
- Document parsing — upload your Form 16 and let kitna.tax fill in the details for you.
Who builds kitna.tax
kitna.tax is a small product made by people who care about craft.
- Designed by 530 Expert — product design and brand.
- Developed by ESS ENN Associates — engineering and the tax engine.
- A portfolio company of FourOne AI — where the AI roadmap is built.
Ready to see your number?
It takes about ten seconds and costs nothing.
Questions or feedback? Get in touch — we read everything.