Hi there, WhatAmIDoingWrong!

You're doing the right thing. We'll just need to filter the bills and their bill payment check. I'll guide you through the steps.

On the report page, you can click the small Gear icon above the report table. Then, click Show more and place a checkmark in the A/P checkbox. This step will let you filter the paid bills only along with their payments. To do that, you'll want to click on Customize, expand the Filter section, and select PAID in the A/R Paid drop list. Then, you can modify the date range and run the report. That will do it.

You can get more details by customizing the existing reports in QuickBooks Online. If you want to learn more, simply check out the article about it, and start creating your own set of custom reports.

Let me know if there's anything I can help with printing checks or creating reports.