Hi, Jewel. Let me explain this situation.
The sudden sales tax could be due to the PayPal integration. Please review your settings and contact PayPal support for updates and inquiries, as QuickBooks relies on the process of this connected service.
Here's a reference guide and frequently asked questions about connecting your PayPal to QuickBooks Online: Use the Connect to PayPal app.
Additionally, you can check out this article for your next step in reviewing your transactions: Categorize online bank transactions.
Whenever you need assistance with the task process or guidance on what to do next, feel free to collaborate with our QuickBooks Live Expert Assisted team. These specialized professionals can help you with anything you need for your business.
Don't hesitate to reach out if you have any questions or concerns about what to do next with your integrated PayPal transactions.