We are seeing the same issue with existing employees following the intuit payroll migration to quickbooks (not our choice). Our employee data and account was NOT migrated over correctly, our company account is incorrect and we are unable to save any changes to correct our employees withholding data.  I have been on the phone with support for an hour and a half with NO help on this issue. I've been told, there is an "investigation" with NO ETA or update. This is unacceptable. This failure create company files correctly and inability for employeers to correct W4 information is a complete failure of a payroll system. You are preventing us from paying our employees correctly and paying the correct withholding taxes. That is the complete purpose of a payroll system. This is NOT a network issue from the customer side, clearly, as everyone of these customers seeing this has already told you they've changed browers, refreshed, and cleared all their history. Quickbooks needs to prioritize this ASAP or risk losing customers as they are failing to provide the basic functionality of a trustworthy payroll system.