Hi @AerialStudio. Yes. QBO has an option to create projects for each client. Once you create a project you can assign payroll and other payables/receivables to the project. You can run a Profit and Loss report by Project to see how your project is doing.

Some helpful links about QBO Projects:

https://www.firmofthefuture.com/content/using-projects-instead-of-classes-in-quickbooks-online/

https://www.firmofthefuture.com/content/new-for-quickbooks-online-labor-costing-for-projects/