missing T4 from QBO

Hello tigger44,

Thanks for connecting with us here. I'll be happy to guide you in the right direction so you can continue to focus on your work with peace of mind. 

To get started, I recommend double-checking to make sure your payroll taxes are set up correctly. I encourage you to check out the steps provided in this article here as they show you how to set up the taxes correctly for the employee in question. It's also important to make sure your employee is above 18 years of age as that could be a cause to the issue you've described. 

In case you need additional support, I recommend contacting our support team for further support. Here are our contact details:

• Phone: Call us at 1-855-253-1536 from Monday to Friday between the hours of 9 AM and 8 PM EST.
• Schedule a Callback or start a Chat: click (?)Help in the upper right > type and enter "Contact support" into the QB Assistant > click Contact Us > explain your situation > click Let's Talk > choose Get a callback or Start a Chat.
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Let me know if you have other questions. I'm here to assist.

He was under 18.  Why would that prevent a T4 slip from being prepared?

You should still be able to generate a T4 for the employee. Since this isn't the case, I recommend getting in touch with a payroll specialist for further assistance using the contact details above. Feel free to keep me posted on how you make out. I'll be here.