From the error, the bank account with the name you blacked out is already on your chart of accounts, and yet the IIF file contains the account again.

Normally this should work fine, but based on the message the account is set up for Bank Feeds and (I guess) QuickBooks thinks that in order to import the account you have to specify a value for every field on the Online Services tab.

Of course, those fields have not all been made available for import by Intuit. Somehow the problem of requiring the fields for import and then not making them available for import has not made an impression on anyone at Intuit. This issue was created with the the new and rather horrible IIF import code added to QuickBooks back in 2019 to 'improve' import.

You can probably get around the first error by using the alternate import process, which still uses the old, stable, good import code that nobody asked to be fixed - since it didn't need fixing.

See BRC QuickBooks 2019+ IIF Import Changes and Recommendations , which also includes a list of some of the horrible bugs Intuit implemented in the new workflow, most all of which are not fixed (hey, it's only been four years...)

That noted, the following errors about the account type need to be fixed. Based on the messages, you are trying to add sub-accounts to a parent account of a different type. QuickBooks won't allow that. To fix the errors I can see in the screenshot, make sure "Tax" is an Other Current Liability and then it should work to add the sub-accounts from the errors.