It's essential to ensure compliance with local laws and regulations, including those related to taxation, invoicing requirements, and financial reporting. I can provide some insights about this, kemarq.
To determine whether QuickBooks invoicing applies to Saudi law, you should consult with a local legal expert or accountant who is familiar with the regulations governing invoicing in Saudi Arabia. They can advise you on how to configure QuickBooks Online (QBO) to meet the legal requirements and ensure compliance with Saudi law.
Then, refer to this article for more information about utilizing QuickBooks Online for creating, sending, and managing invoices efficiently: Create invoices in QuickBooks Online.