Since May 1, 2013, you've been required to display and invoice eco-taxes to your customers. PrestaShop's basic eco-taxes module requires you to anticipate your prices and enter them in your catalog, deducting the eco-tax from the total price you display to your customers. You should also be aware that in the event of a price discount, the eco-tax remains unchanged. You'll have to make constant calculations to comply with all these constraints.
To ensure that your customers have access to this mandatory information, the module enables you to display this tax on the product page at the time of purchase, as well as in the shopping cart at checkout. This improves the customer experience and reassures the consumer.
Prices are then automatically displayed on your site's product page, and updated if the tax is different depending on the declination.
IMPORTANT: This module does not use PrestaShop's internal eco-tax system to manage product prices. You can define the price of your products without worrying about what it will look like once the tax has been calculated, as the tax display will be noted “of which eco-furniture”, which means that if you decide to display a product at €100 for your customer, it will be displayed at €100 including taxes, and the amount of the eco-contribution will be specified in this “of which”. The contribution will not be added to the initial price, as with PrestaShop's internal eco-tax system. The customer will therefore pay €100. Your customers will see no change, apart from the rounded amounts.
The amount of the eco-tax can then be found on customers' invoices too, fulfilling your obligation to provide information.