Welcome to the QuickBooks Community! I would love to help you here. If you have automated taxes and forms on in your online payroll, you would need to connect with us to request a correction. However, if this is not the case, here's how:
If you haven't filed yet, follow these steps:
You don’t need to create or file a W-2c form. Fix the issue in your product.
You must manually create and file a W-2c and W-3 form with the Social Security Administration. To do this, see the General Instructions for Forms W-2c and W-3c section in the General Instructions for Forms W-2 and W-3.
I will be adding this article that details fixing incorrect W2s or W3s.