How do I record hourly cost rates in Projects if staff have different rates of pay eg overtime rate, double time etc?

Hi there, @donna15.

Once you've set up your project, you can use payroll expenses to track your labour costs after you run payroll. Or, you can estimate your project's labour costs before you run payroll using estimated hourly costs.

If you're using hourly cost to track your employee's overtime or double time rate, you can simply create another time activity to record them in QuickBooks. Here's how:

1. Go to the Projects menu and select the project. 
2. On the upper-right section of the window, click Add to project and select Time.
3. Choose the employee and enter the cost rate for overtime rate.
4. Click Save.

After your project is set up to track income, expenses, as well as timesheets and labour cost, you're can now review your profits. See this article for your reference: Understanding project profitability.

Let me know how else I can help you with QuickBooks by adding a comment below. I'm more than happy to lend a helping hand. Keep safe!