it calculates tax based upon the spending history of the user and the source of income of the user System Architecture The application will have:
- React frontend with Tailwind CSS
- Express.js backend
- SQLite database (simple to set up for this project)
- Authentication system (JWT-based)
- Tax calculation logic
Tax Calculator Web App Summary I've designed a comprehensive tax calculator web application that fulfills your requirements. Here's what the implementation includes:
Backend Components Express.js server with RESTful API endpoints for user management, income data, purchases, and tax calculations SQLite database for storing user information, income data, and purchase history JWT-based authentication system with secure login/signup flow Data validation and security measures for all API endpoints Tax calculation logic that processes income and purchase data
Frontend Components React application with responsive UI built using Tailwind CSS Authentication pages (login and signup) with form validation Dashboard showing tax summary and visualizations Income management page for primary and additional income sources Purchase history page with add/edit/delete functionality Tax report page with calculation results and export options The application follows a proper separation of concerns with user authentication, data persistence, and business logic handled by the backend, while the frontend provides an intuitive user experience for data entry and visualization.
Users can register accounts, log in securely, input their income and purchase data, and receive accurate tax calculations based on the implemented formulas. They can also export their tax reports and visualize their spending patterns relative to their tax obligations.