Indian Income Tax Calculator and Gemini AI Financial Advisor

An AI-powered web app that helps Indian taxpayers calculate estimated tax, compare old vs new regimes, and receive personalized tax-saving suggestions using the Gemini API.

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What it does

The Indian Income Tax Calculator & Gemini AI Advisor is an interactive web app that: Collects user income, expenses, investments, and deductions. Calculates estimated tax under both Old and New tax regimes. Compares regimes and highlights the better option. Generates AI-powered explanations of tax results. Provides future-focused tax planning advice using natural language. Allows users to ask tax questions conversationally. Unlike traditional calculators, this app focuses on explainability and guidance, not just numbers.

How I built it

Designed a clean, responsive dashboard-style UI for easy navigation Implemented Indian tax calculation logic based on current slabs Built the application using Google AI Studio Integrated the Gemini 3 API to: Explain tax calculations in simple language Generate personalized tax planning advice Compare regimes with reasoning Provide conversational responses to tax-related questions Deployed the project as a public AI Studio app, allowing judges to run it instantly without setup

Challenges I ran into

Accurately handling Old vs New tax regime differences Designing prompts that ensure reliable and responsible financial explanations Balancing detailed insights with a simple, non-overwhelming UI Structuring AI responses to be helpful for non-technical users

What I learned

Building real-world applications using the Gemini 3 API Prompt engineering for financial and advisory use cases Designing explainable AI systems for sensitive domains Creating end-to-end AI apps using Google AI Studio

What's next

Support for additional deductions and exemptions Downloadable AI-generated tax summary PDFs Secure session saving for returning users Expanding Gemini’s role into long-term financial and investment planning

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Updates

posted an update —

Enhanced the Indian Income Tax Calculator & Gemini AI Financial Advisor with a step-based flow, clean dashboard UI, and Gemini-powered tax explanations. The app now compares tax regimes, generates personalized financial advice, and provides a one-click tax summary. Focused on clarity, usability, and real-world financial guidance using Gemini AI.

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