Hi there,
Protecting the privacy of your business is imperative when using a cloud-based program like QuickBooks Online. We also take seriously the privacy and security of your employees, as their personal identifiable information is stored in the system (such as SIN #). I'll explain what this means for the visibility of the SIN in your account.
Once you enter your employee's SIN number, you're only able to see the last 3 digits of the number on their TD1 form. I know it may be important for you to have access to their full SIN number, and I'd urge you to follow up with the employee directly to get this information.
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If you have any other questions, please reach out to our tech support team.
Cheers.