Laravel

Laravel Loan Financing Calculator Package

Laravel Loan Financing Calculator Package

Project Overview

Developed a reusable Laravel package that provides accurate loan repayment calculations for both borrowers and investors. The package is framework-friendly, database-independent, and can be integrated into any Laravel application with minimal configuration.


It supports multiple loan structures including interest-only, balloon, and fully amortized loans, along with monthly and quarterly payment schedules. The package also calculates investor-specific fees such as management, incentive, advisory, and withheld interest while maintaining configurable rounding, timezone support, and validation.


Designed using clean architecture principles, the package exposes an intuitive API through facades, service classes, and DTOs, making it easy for developers to integrate complex financial calculations into their own applications without rebuilding loan logic from scratch.

Challenges

Creating a reusable package that could accurately handle different loan structures, payment frequencies, investor fee calculations, withholding rules, and financial edge cases while remaining framework-independent, highly configurable, and easy to integrate into multiple Laravel applications.

Solutions

Designed a modular Laravel package with reusable calculation services, DTO-based data handling, configurable settings, strict validation, and a developer-friendly API. Implemented borrower and investor schedule generators, support for multiple payment methods, configurable rounding and timezone settings, and an interactive demo interface for testing calculations without database dependencies.

📈 Business Outcome

Enabled developers to integrate complex loan calculation functionality into Laravel applications within minutes instead of building financial calculation engines from scratch. The package improves development efficiency, reduces implementation errors, and provides a reliable foundation for lending, fintech, and investment platforms.

Project Screenshots

Laravel Loan Financing Calculator Package screenshot

Project Details

Client
Open Source / Laravel Package
Duration
1 Week
Built
March 2026
Work Type
Personal
Category
Laravel

Tech Stack

Laravel 12 PHP 8.2 Carbon Service Providers Facades DTOs OOP PHPUnit

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