Hi there, BJZS.
Thanks for contacting the Community for support. I'd be glad to provide some information on your question about reports for total amounts paid by customers.
One option you may want to try out is the Income by Customer Summary Report. You can access this report by:
1. Clicking the Reports tab in the left navigation bar.
2. Type Income by Customer Summary in the search bar.
3. Enter the dates you'd like to pull data for.
4. Click Run report.
You can also customize this income report for individual customers by:
1. Selecting the Customize button in the top right corner of the report page.
2. Click the Filter drop-down.
3. Put a check in the box for Customer and the choose the desired customer from the list.
4. Click Run report.
This article offers more information on customizing customer reports: https://quickbooks.intuit.com/community/Reports-and-accounting/Customize-customer-job-and-sales-repo....
With this information, you'll be able to generate reports that show amounts your customers have paid. Keep up the great work and please let me know if you have any other questions.