The first thing is to access our Magento 2 administrator panel or backend, once there we go to Stores -> Tax Zones and Rates.

As we can see when installing Magento, it creates some default zones for us, we are going to create our own zones, to do this we click on Add New Tax Rate.

Now we put a tax identifier, or what is the same, the name to identify it, we can restrict by postal code by indicating it, if we put only * it will be for all postal codes, Federated State with * is for all, Country in which it will operate and finally the percentage of the rate. Finally, we click on Save Rate.

Now, in the view we saw earlier, if it has been created correctly, we will see the identifier of the created product.

Now we are going to create the tax rule, for this we go to Stores -> Tax Rules.

In this new view, we can see that we do not have any tax rule created, so we click on Add New Tax Rule.

In this new view, we can see that it asks us for a Name, which is the one that will appear for us to select in the product when we introduce it, Tax Rate, here we select the rate that applies for this rule, if we expand the Additional Configuration we see that it comes out.

We can select to which class or group of clients this rule applies, as well as the Tax Class of the article, it is best to put the descriptive name as it is the one that appears in the product sheet, we can establish priorities, the order of appearance,

With this we can already click on Save Rule and we would have created our new rule, as can be seen in the following image.

It is also possible to Import and Export tax rates from this same view as shown in the following screenshot.

To simply check that it has been created and what it looks like when creating the product, we go to PRODUCTS -> Catalog.

Here we click on Add Product, here in Tax Class we will see the rule created with the name we entered.