Thank you for returning to the thread, Justine. Turning off the Shipping function in the company's account settings will impact your records within QuickBooks Online (QBO). I'll offer additional information and suggestions to help resolve this quickly.

The program uses the details you've entered as a reference or extra key points to transactions you process within your company file. Also, QuickBooks follows the regulations implemented by the US in terms of sales tax calculation added to transactions conducted between your business and the customers.

To navigate this situation, you could collaborate with your Tax advisors. This way, they can help you ensure your books remain accurate while establishing the appropriate sales tax rate to apply when dealing with customers not linked to the shipping address. If you don't have a Tax advisor, you can find one by visiting this page: Find a QuickBooks ProAdvisor.

Moreover, I'm providing this handy article to help you determine the sales taxes you have in QBO: Check how much sales tax you owe in QuickBooks Online.

Do you also need help recording sales tax payments in QuickBooks? Please utilize the comment section below for a prompt response. Rest assured, I'll always be around to guide you while you navigate this process. Keep safe.