All my July invoices are calculating the sales tax rate "based on location" with the incorrect rate, it's a previous rate and not the current one. How can I fix this?

Thanks for visiting the Community today, @johns64. 

The Automated Sales Tax system uses the Based on location tax rate on the address provided on an invoice. Otherwise, it'll use your company address' location to calculate the rate. 

For now, you can manually click the drop-down list and select the custom rate when creating your sales transactions. See screenshot below: 

You can also select +Add new from the drop-down list to customize or change the sales tax rate to manually calculate taxes on invoices 

Let me also share these additional guides when filing and paying your sales taxes in QBO:

• Check how much sales tax you owe in QuickBooks Online. It helps you learn about running the Sales Tax Liability report to get the detailed info of your sales taxes.
• File your sales tax return and record tax payment in QuickBooks Online. It includes a quick video tutorial to guide you in this process to make sure you're always on time to avoid extra fees. 

Feel free to come by again if you need additional help. We're always here to guide. Stay safe.