How do I assign certain expenses/material purchases to a specific job? I work in construction, I buy materials and invoice client at end of month for these materials.

Hello, jonathan7.

In QuickBooks Online, you can turn on the project feature. So you can track a job income, expenses, and profitability.

To learn more about how to turn on, create project, and add project income and expenses, please refer to this article: https://quickbooks.intuit.com/community/Help-Articles/Set-up-and-use-the-Projects-feature/m-p/186112.

Also, please check this helpful article for more questions about this feature: Projects FAQs.

Don’t hesitate to visit us here again if you need anything else.