Do we have any option to post a transaction under vat? our company located in soudi arabia. could you help us?

[Fiat Lux - ASIA]

You have to use QBO Global version for Saudi Arabia.

https://quickbooks.grsm.io/saudi-arabia

Then you can visit the following reference

https://quickbooks.intuit.com/learn-support/global/tax/how-do-i-set-up-sales-gst-vat-rates-and-use-t...

Hope it helps.