How do you edit T4's? Add an amount to Box 34?

Hi lisa-atlantictra,

Thanks for reaching out here.  I can see the importance of having the ability to edit the information on the T4 slips.  However, QuickBooks Online Payroll doesn't provide the option to edit the information.  I recommend contacting us outside of Community so we can work with you directly and make the necessary changes as soon as possible!

Schedule a Callback or start a Chat: click (?) Help in the upper right in QuickBooks Online > enter "Contact support" > hit Contact Us > provide a brief summary of your situation > hit Let's Talk > choose Get a callback or Start a Chat.
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Please feel free to reach out again with other questions.  We'd be happy to help!