Interesting response since .iif files are intuit/Quickbooks proprietary files but they aren’t supported?? QB needs data analysts to support their small business clients.

I have figured out that the QB online system has known data issues. It’s as simple as looking at the file in Excel and seeing the error. Apparently it’s a known issue with no resolution at this time. This was confirmed with QB online support. For those reading this response, updating to QB desktop 2023 will not fix your issue since it’s an issue w QB online. I will most likely switch payroll providers since even QB is stating that they don’t support their own proprietary data issues. 

For those that want a work around..you have to choose your IIF file with the option to “import it for me and I’ll fix later”. You will still get an error but it will generate a new iif file in downloads. Go back to that new file and import it with the “import it for me..” and it should work.