A value-added tax (VAT) is a consumption tax placed on a product whenever value is added at each stage of the supply chain, from production to the point of sale.
Enable VAT for your store on your products.
Go to the store, select edit store.
Navigate to service and delivery hours, scroll down.
Enable VAT services, choose exclusive or inclusive VAT.
Add the percentage of VAT you would like to apply to your products.
This VAT will be applicable to your store orders.
Refer to the below image