Yes, the tax invoice is attached to the email you have received with the order confirmation.
If you are a registered customer (it means you have a customer account) you can download the invoice from your user account.
1. Open your account by clicking the icon on the left side of the cart icon:
2. Click "Order history and details"
3. Click "View details" for the order you want to download the invoice.
4. Click "DOWNLOAD TAX INVOICES"