The "WooCommerce Payment Gateway Based Fees" is an extension for WooCommerce that allows you to add fees to orders based on the payment method chosen by customers. This extension provides flexibility and customization options for charging additional fees based on specific payment gateways. Here are some of the key features and functionalities of this extension:

General Choices:

1. Enable/Disable: You can enable or disable additional fees for the entire website, providing control over when and where these fees apply.
2. Per Payment Method and Per Item: You can enable or disable extra fees for specific payment methods and individual products, allowing you to fine-tune fee application.
3. Automatic Fee Calculation: The extension automatically calculates the fee based on the value of items in the cart or the total cart value. The calculation can be adjusted by the store administrator at any time.
4. Manual Fee Addition: You have the option to manually add a fee to an order, which can be useful when customers need to change payment methods after checkout.
5. Tax Support: The extension supports the inclusion of taxes for the additional fees, ensuring compliance with tax regulations.

Three Fee Types:

1. Fixed Amount: You can set a fixed amount to be added as a fee for specific payment methods or products.
2. Percentage of Product Price: The extension allows you to add a fee as a percentage of the individual product price or the total order price.
3. Percentage of Total Cart Value: You can also set the fee as a percentage of the entire cart's value, which means the fee will be calculated based on the total order value.

Control and Customization:

1. Fine-Grained Control: You can define the conditions for which customers are charged a fee at the cart stage, giving you precise control over when the fee applies.
2. Product-Level Control: The extension allows you to specify which products are subject to the additional fees.

This extension is a valuable tool for WooCommerce store owners who want to add flexibility and customization to their pricing structure based on the payment methods selected by customers. It helps you streamline your pricing strategy and ensures that fees are applied accurately and fairly to meet your business needs.