To integrate payments into a Laravel application using Paddle, developers can leverage the Laravel Cashier package. This tutorial outlines a step-by-step guide to setting up subscription-based payments with Laravel Cashier and Paddle, covering topics such as configuring the database, implementing authentication, adding time-tracking functionality, and integrating Paddle's payment gateway. By following this tutorial, developers can create a robust payment system for their online applications, ensuring efficient handling of transactions and secure user data management.