Live Demo: https://suharshtyagii.github.io/Loan-Prepayment-Simulator/
A powerful, interactive tool to visualize how prepayments can transform your loan journey and save significant interest costs over time.
- Interactive Calculator: See how changes to loan parameters affect your payoff timeline in real-time
- Prepayment Analysis: Visualize the impact of one-time and recurring prepayments
- Multiple Payment Frequencies: Simulate weekly, biweekly, monthly, semi-annual, and yearly payment schedules
- Visual Amortization: Interactive graph showing your loan balance reduction journey
- Detailed Data: Complete amortization schedule with period-by-period breakdown
- Export Capability: Download detailed amortization tables as CSV for further analysis
- Multi-currency Support: 30+ currencies with localized formatting
- Responsive Design: Seamless experience on desktop, tablet, and mobile devices
- Dark/Light Mode: Choose your preferred visual theme for comfort
Understanding how prepayments affect your loan can lead to significant savings. This simulator helps you:
- Visualize how years can be shaved off your loan term with strategic prepayments
- Calculate exact interest savings from different prepayment strategies
- Plan your financial future with interactive "what-if" scenarios
- Make informed decisions about where to allocate extra funds
The simulator uses standard amortization formulas to calculate how your loan balance changes over time. Key inputs include:
- Original loan amount: The principal you initially borrowed
- Remaining principal: Current outstanding balance
- Monthly EMI: Your regular payment amount
- Interest rate: Annual percentage rate
- Extra payments: Both one-time lump sums and recurring additional payments
As you adjust these parameters, the calculator instantly updates the amortization schedule and visualization to show your new payoff trajectory.
- React: For building the interactive UI components
- Recharts: For data visualization
- Tailwind CSS: For responsive styling and dark/light mode
- Lucide Icons: For beautiful, consistent iconography
The simulator calculates loan amortization using the standard formula:
For each payment period:
- Calculate interest:
Interest = Outstanding Balance × (Annual Rate ÷ Periods Per Year) - Calculate principal payment:
Principal = Regular Payment + Extra Payment - Interest - Update balance:
New Balance = Previous Balance - Principal Payment
- Home Mortgage Analysis: See how additional payments can reduce your 30-year mortgage
- Student Loan Planning: Develop a strategy to eliminate student debt faster
- Auto Loan Optimization: Determine if making extra payments on your car loan makes financial sense
- Personal Loan Management: Visualize the quickest path to debt freedom
Contributions are welcome! Please feel free to submit a Pull Request.
- Fork the repository
- Create your feature branch (
git checkout -b feature/amazing-feature) - Commit your changes (
git commit -m 'Add some amazing feature') - Push to the branch (
git push origin feature/amazing-feature) - Open a Pull Request
This project is licensed under the MIT License - see the LICENSE file for details.
Created by Suharsh Tyagi
Made with ❤️ for everyone striving for financial freedom through informed decision-making.