Why are my invoices created in 2021 not reporting on my Customer Balance Report?

It's nice to have you here on the Community page, @arkvalleyinfo.

You can customize the reporting period to add the 2021 invoices to your  Customer Balance Report. I can guide you on how.

1. Open your QuickBooks Online (QBO) account, then click on Reports at the left pane.
2. Open the Customer Balance Detail report.
3. Set the date to include the 2021 period under the Report period section.
4. Hit on Run report to refresh the page.

For additional tips about running/customizing reports in QBO, you can open this link: Run reports in QuickBooks Online.

Moreover, you can also save the current customization settings of your reports for future use. To learn more, I suggest checking out the instructions from this link: Memorize reports in QuickBooks Online.

Please keep in touch if you need more help with this. I'm determined to help. Have a great day!