You've come to the right place, @userahmedsobhi474.
I can guide you in creating a tax code so you can apply it to invoices. Here's how:
- Go to the Tax menu.
- Choose Add Tax.
- Select Tax Rate.
- Enter the details of your tax rate.
- Click Done.
Now, you can create an invoice and add a VAT code to it. You can read through this article for more detailed instructions in setting up VAT in your account: How do I set up sales GST/VAT rates and use them on forms? (International QBO).
Also, I've added these articles to help you manage VAT in QuickBooks:
- How do I record tax withheld by my customer?
- Remove a VAT or GST rate
- Edit sales tax rate in QuickBooks Online
Get back to us here if you have other questions about applying VAT to your invoices and other sales form. I'm always here to help.