BTCRetailX can process sales tax in multiple ways including 1)Tax Included, 2) Destination Based Tax and 3) VAT/GST tax. The destination based tax is what is seen in the United States where sales tax is added after the subtotal of goods and services. The VAT/GST is built in to the price of the goods and services already before checkout.
Tax Included
This is the easiest of the sales tax methods to implement. From the Configuration Menu, click the Tax tab and select Tax Included, then fill out the Tax 1 Rate Name and Percentage. If you need a second rate, fill out Tax 2 Rate and Percentage. These can be combined in one item or used separately.

When you go into the Item, you will see Tax 1 and Tax 2 listed. You can modify the percentage for each individual item here. If you do not want to charge a tax for that Tax Rate, change the percentage to 0.00 or leave it blank.

Ring up your item and see the tax added

Destination Based Tax Includes VAT/GST Settings
This tax is jurisdiction based and can be variable based on product sold. You might have to charge 6% tax in one county, but 7.5% tax in another county. Or you may have to charge 9% for durable goods and an extra 2% for hospitality tax for prepared foods. The difference between VAT/GST and Tax Added sales tax is the Tax Included or Tax Excluded setting.
There are two places to work on taxes with Destination/VAT/GST based taxes in BTCRetailX. The main menu Taxes button and the Configuration button.

Start with clicking the Taxes button. You be presented with four tabs: Tax Codes, Tax Jurisdictions, Tax Categories, and Tax Rates.

Tax Codes – these codes allow you to group Customers in geographic tax locations such as for customers having product delivered in another state where the tax due is different than that being delivered in state. The tax code is assigned in the Customer Detail view.

Tax Jurisdictions – these are the tax locations that your store delivers or sells goods in physically. Most stores will have one Tax Jurisdiction if you sell at your store and customers take the goods with them. However, if you deliver products to multiple jurisdictions such as inside different city limits, you will charge tax per that jurisdiction where product is delivered.

If you show tax owed (NOT VAT or GST) per item in the total, then you will choose Tax Excluded. The system will show the item price separate from sales tax in the total.
If you sell with VAT/GST included, choose Tax Included. The system will show just the item price that includes the VAT/GST.
Tax Categories – these are the different types of items and how they are taxed such as Food, Non, or just a generic Tax.

Tax Rates – build the actual rate with all of the previous built codes from above. Here we built a Tax Code charging 7.000%.

At this point, you can edit the Item Detail of a product and choose the Tax Code to be used for that item. You can do this individually with all items. The next section shows you how to set the store default Tax Code. You can then build a Non Tax tax code here for the typically smaller amount of goods that are non-taxable and edit those NonTax items and let the majority of taxable items be taxed according to global settings.

To set the Global Tax Default, build the destination based taxes as shown above, then go to the Configuration menu and click the Tax tab. Check the Destination Based Tax checkbox. Then select the corresponding Default Tax Doe, Tax Category and Tax Jurisdiction. The system will charge tax per these settings. You must build a NonTax category and rate in the Taxes setup above in order to exclude those products from getting taxed automatically with these Global Tax Settings in place. You could set tax categories exclusively in the Item Detail and not select defaults if you have multiple default rates.

NOTE: generally speaking (check with your tax authority), gift cards and vouchers are not taxable when sold, but when redeemed. This includes Bitcoin Vouchers, Bitcoin Lightning Vouchers, Gift Cards and Gift Certificates. We recommend you set these items up as non-taxable if enabled in your item list. If we configure your tax setup, we will mark the items as non-tax for you.