I know a way how you can import IIF transactions in QuickBooks Desktop (QBDT).
First, download the IIF kit in QBDT. Once done, you are now ready to import the transactions. Before that, ensure to create a backup copy of your company file. If you ever run into problems, you can use your backup to restore your data.
Here's how to import the IIF file:
- Sign in to your company file as an admin.
Note: If you’re in Multi-user mode, go to the File menu, then select Switch to Single-user Mode.
- Choose File menu, then click Utilities.
- Hit Import, then tap Import IIF.
- Tick the IIF file you want to import, then click Open.
- Tap OK to confirm the import.
Please see this article for more details: Export, import, and edit IIF files.
I also suggest connecting your bank account to QuickBooks to import or download and categorize transactions in QBDT.
In addition, You may also refer to this article to help your bank account transactions to QBDT: Reconcile an account in QuickBooks Desktop
In case you'll need assistance in dealing with QuickBooks file, don't hesitate to get back on this thread. We're always here to help you.