Welcome to the Community, @Westefk.
As mentioned by @john-pero, you can add a different hourly rate to the same employee. However, without a payroll subscription, the option to issue paychecks is unavailable.
Use a Journal Entry to do manual payroll in QBO. I recommend consulting an accountant on what specific accounts to use recording the transaction to ensure the accuracy of your books.
Check out this article for reference: Record payroll transactions manually.
This information should help you enter payroll transactions without a Payroll subscription in QuickBooks Online.
Let me know how this goes and if you have other questions. I’m more than happy to help. Have a great day!
You can only add additional pay rates to employees when you have payroll.
If your employee does different jobs and you record time activities, just enter the job rate in the Billable (/hr) field of the activity. You may also enter something in the Description field so you can easily recognize the rate. A job name, perhaps.
We're just around if you have additional questions.