Welcome to the Community space, Bobbie51.
I'll provide some information to assist you in allocating individual charges to the appropriate project expenses.
The Project feature is available in QuickBooks Online Plus and Advance. This is turned on by default. Please make sure that you have already created a new project to link expenses to specific projects.
Here's how:
- Go to the Project menu, then click New project.

- In the Project name field, enter the project name.
- Select the project customer from the Customer ▼ dropdown.
- Add any notes or details about the project in Notes.
- Once done, hit Save.
- Repeat the same steps if you have multiple projects.
If you have existing expenses or charges, you can follow the steps below to add them to the certain project:
- Go to the Expenses menu, then select the Expenses tab.
- Find and open the transaction you want to add to your project.

- In the Customer/Project column, select the ▼ dropdown. Then select the project. Do this for each expense item you want to add to your project. This is different from the payee for the expense. Note: If you don’t see the Customer/Project column, you can turn on the setting Track expenses and items by a customer in the Expense section of your QuickBooks account.

- Select Save and close.
- Repeat the same process for the rest of the transaction.
These are the steps if you want to add new transactions to a project:
- Go to the Project menu, then select your project.
- Select Add to project to create a new transaction

- Choose Invoice, Receive Payment, Expense, Estimate, Time, or Bill.
- Fill out the details for the transaction as you normally would.
- Once done, hit Save and close.
- Repeat the same process for the rest of the transaction.
For your reference, check out the link for a complete guide: Set up and create projects in QuickBooks Online.
In addition, I've added this article if you want to invoice your customers for specific project-related expenses: Invoice customers for project expenses in QuickBooks Online.
You're welcome to reply to this post if you have further questions about the project feature. We're available to help you.