In this tutorial, we will learn how to calculate Value Added Tax (VAT) in our e-commerce site built with Django Oscar. VAT is a consumption tax that is added to the price of goods and services purchased by consumers. It is important for e-commerce websites to calculate and display VAT on the checkout page for customers to see the total cost of their order including tax.
To calculate VAT in our Django Oscar e-commerce site, we will need to add the necessary HTML tags and JavaScript code to our template files. Follow the steps below to implement VAT calculation in your e-commerce site:
Step 1: Create a new Django template file for the checkout page.
First, create a new HTML template file for the checkout page in your Django Oscar project. You can name this file checkout.html and place it in the templates directory of your Oscar app.
Step 2: Add HTML tags for displaying VAT on the checkout page.
In the checkout.html template file, add the following HTML tags to display the subtotal, VAT amount, and total cost of the order:
<!DOCTYPE html>
<html>
<head>
<title>Checkout</title>
</head>
<body>
<h1>Checkout</h1>
<p>Subtotal: ${{ order.sub_total }}</p>
<p>VAT (20%): ${{ order.total_tax }}</p>
<p>Total: ${{ order.total_incl_tax }}</p>
</body>
</html>In the above code, replace order.sub_total, order.total_tax, and order.total_incl_tax with the appropriate variables that contain the subtotal, VAT amount, and total cost of the order in your Django Oscar project.
Step 3: Add JavaScript code for calculating VAT.
Next, add JavaScript code to the checkout.html template file to calculate the VAT amount based on the subtotal of the order. Include the following script tag at the end of the body section:
<script>
var subtotal = {{ order.sub_total }};
var vatRate = 0.20;
var vatAmount = subtotal * vatRate;
document.write("VAT (20%): $" + vatAmount);
</script>In the JavaScript code above, the subtotal variable stores the subtotal of the order, the vatRate variable stores the VAT rate (20% in this case), and the vatAmount variable calculates the VAT amount based on the subtotal and VAT rate. The document.write method displays the VAT amount on the checkout page.
Step 4: Test the VAT calculation on the checkout page.
Save the checkout.html template file and navigate to the checkout page in your Django Oscar e-commerce site. You should see the subtotal, VAT amount, and total cost of the order displayed on the page. Make sure that the VAT amount is calculated correctly based on the subtotal of the order.
In this tutorial, we have learned how to calculate Value Added Tax (VAT) in our e-commerce site built with Django Oscar. By adding HTML tags and JavaScript code to our template files, we can display the VAT amount on the checkout page for customers to see the total cost of their order including tax.
