We build free finance calculators that show the math, name the assumptions, and never overstate the outcome.
Most online calculators give you a number without showing the work. They claim 'SEBI methodology' without explaining what that means. They hide assumptions behind sliders and present projections as promises.
We built FinsiderAI because Indian investors deserve better. Every calculator shows the formula, names the return-rate assumption, includes step-up and inflation, and applies FY 2026-27 tax rules — so you can trust the number or challenge it.
Free, browser-based finance calculators. No sign-up, no email gate, no paywall. Your inputs are not stored — the math runs and the page forgets.
Each calculator ships with the full formula, a section on what it doesn't model, and FY 2026-27 tax treatment where relevant. We'd rather show you a limitation than hide it.
Every number on this site is calculated using standard compound interest formulas. We don't use proprietary models or black boxes. If a return rate is assumed, we say so. If a cost is excluded (expense ratio, exit load, STT), we say that too.
Tax calculations reflect the Finance Act for FY 2026-27. When rules change, we update the calculators and note the change.
FinsiderAI is built in Hyderabad, India. We're a small team that believes financial tools should be free, transparent, and honest. No venture funding, no ads (yet), no conflicts of interest.
Our calculators are reviewed against AMFI and Income Tax Act primary sources before every update.
We want to hear it. If a number looks wrong, a formula seems off, or you have a suggestion — reach out at contact@finsiderai.com or use the contact form. We take every report seriously.
Last updated: May 2026
Disclaimer: FinsiderAI provides calculations and educational content for illustrative and informational purposes only. It does not constitute investment, tax, or legal advice. Mutual fund and market-linked investments are subject to market risks; please read all scheme-related documents carefully. Past performance is not indicative of future results. Tax calculations are based on publicly available rules for FY 2026-27 (AY 2027-28). Consult a SEBI-registered investment advisor or qualified chartered accountant for personalised advice.