Hello red,
Great question! I can appreciate wanting to be able to enter payroll information into the program without signing up for payroll when you only have one seasonal employee. It'll mean some manual calculating on your end, but I've got an article that can help with entering the figures into QuickBooks Online. Check it out here: Record payroll transactions manually
If you're feeling unsure, I recommend checking in with an accountant for more detailed guidance. If you already have an accountant, you can add them as an accountant user to your QuickBooks so they have direct access to helping you with this. Learn more from this link: Invite or remove an accountant
QuickBooks can also help you find an accountant with our Find a Pro to Help feature accessible in the My Accountant tab. When you click the button for that feature, you'll be taken to a screen where you can enter your postal code to search for accountants near you.
I hope that helps! Enjoy the rest of your day.