Applying the Fixed Product Tax (FPT) is one of the tax options that is supported well by Magento 2. Unlike other taxes such as VAT or sale taxes that are calculated with a percentage of the order price, the FPT gives customers a fixed number for the tax. Therefore, instead of confuring the tax rates and the tax rules, from Magento 2 configuration, you need to set the conditions of the product attributes. With the help of attributes, the FPT is auto-added to the payment process.
So what should you do to set up the fixed product tax in Magento 2? This tutorial will give you a clearer understanding.
Stores > Settings > Configurations.
Fixed Product Taxessection,
Product View Page,
Sales Modules, and
Apply Tax to FPTto “Yes” if you need.
Include FPT in Subtotalto “Yes” to add tax when calculating the subtotal for any order.
Stores > Attributes > Products.
Add New Attribute, and do as the following:
Default Labelfor the attribute.
Catalog Input Type for Store Ownerfield, select Fixed Product Tax option.
Advanced Attribute Propertiessection,
Add to Column Optionsto “Yes”.
Use in Filter Optionsfield, choose “Yes” to enable the product filter in the grid based on the value of the FPT field.
Manage Labelstab to do that.
Save Attributeto complete, then access
Cache Managementlink to flush the cache and ensure that the configurations are active.
Stores > Attributes > Attribute Set.
Unassigned Attributeslist and drag it to the
Each group folder is set respectively to a section of product information. Thus, it is comfortable to place the attribute wherever you want it to appear when the product is open in the edit mode.
Product > Inventory > Catalog.
Add Tax, and do the following:
Websiteand base currency to apply.
Country/Statefor the fixed product tax.
Add Taxbutton and repeat the guide above.
Ref: Magento 2 User Guide
It comes to the end of tutorial: How to Setup Fixed Product Tax in Magento 2.